21
 2008  Spark Plugs Passenger and Light Commercial vehicles

A Sect Spark

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A Sect Spark

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  • 2008

    Enquiries : Melbourne, Sydney : Brisbane, Adelaide & PerthPhone : 1300 307 040Fax : 1300 307 041

    New Zealand : Phone : 0800 452 896

    www.bosch.com.au

    A 1 987 AP2 005/200706

    Robert Bosch (Australia)Pty LtdHead Office Address1555 Centre RoadClayton Vic. 3168

    Reliable diagnosis. Time saving repairs.Bosch diagnostics and service parts.

    Everything from one single source.Bosch has a complete program available which increases efficiency and quality in the workshops daily work.The service parts from the globally active development expert and leading manufacturer of automotive system technology are in renowned Bosch OE quality.Competence and quality:Assuring your workshops future success.

    I Sp

    ark Plugss |

    2008 Spark Plugs

    Passenger and Light Commercial vehicles

  • ULTIMATE PerformanceUniquely heat fused platinum-iridium centre electrode for longest service life ( up to 100,000km. )

    Four Yttium enhanced ground electrodes for optimum horesepower.For maximum power and extended life.

    PREMIUM PerformanceExclusive platinum technology with Yttrium enhanced ground electrode for extended service life (up to 60,000km.)

    A pure platinum centre electrode heat fused into an extended insulator enables self cleaning temperatures to be reached only seconds after starting.

    RELIABLE PerformanceOriginal Equipment quality spark plug for consistently high performance.With Yttium enhanced centre electrode gives super Plus spark plugs a longer service life than standard resistor spark plugs ( up to 40,000km.)A tapered and profiled nickel chromium ground electrode provides extended plug durability and reliable starting

    Worlds No. 1 engine system supplier

    Special cases / Explanation of Symbols

    AG For vehicles with automatic transmissionAGN Ignition coil sticker - greenAGU Ignition coil sticker - greyALZ For engine with aluminium cylinder headAUS Exhaust sideBFK Lead free gasolineBGB Product for gas operationBHK For leaded fuelDII Fitted with direct gas operationEIN Intake sideELG Electrode gap must be set for operation with gasFGB For countries with speed limit of 130 km/hFGK For vehicles with computer-controlled catalytic converterGS For vehicles with manually shifted transmissionKAT For vehicles with catalytic converterKUT For vehicles with open-loop catalytic converterKVE For mainly short distance trafficKWI For shortened service intervalLLK Engine with charge-air coolingNOR Normal versionOKA For vehicles with out catalytic converterOTZ For vehicles without transistorised ignition systemPSE Special platinum electrodeS16 Width across flats : 16mmS21 Width across flats : 21mmSBE Heavy dutySW For rough drivingTSZ For transistorised ignition systemTW The fitted product must be ascertained on the vehicle / engineWI1 Replacement interval 100,000 kmWI2 Replacement interval 20,000 kmWI3 Replacement interval 30,000 kmWI4 Replacement interval 40,000 kmWI6 Replacement interval 60,000 kmWI9 Replacement interval 90,000 kmXIZ 18mm threadXJD 12mm threadXJE 10mm thread

  • 2008 BoschAutomotiveAftermarket

    Spark Plugs

    Product range A1 Platinum-IrFusion

    A3 PlatinumPlus

    A5 SuperPlus

    A7 PerformanceSegments

    A8 Platinum

    A TechnicalInformation

    A FAQs

    A LPGInformation

    A BoschCardedProgram (BoschBlisterPackedCardedSets)

    B1 Howtouse

    B3 Vehicleapplication

    Application data

    Cross reference

    C1 BuyersguideBuyers Guide

  • BoschAutomotiveAftermarket 2008 2008 BoschAutomotiveAftermarket

    ultimAte PerformAnCe

    Ifyourrelookingfortheverylatestinsparkplugtechnology,looknofurtherthanBoschPlatinumIrFusion.Fusionfeaturesapatented,fusediridiumandplatinumcenterelectrode,combinedwithexclusivesurfaceairgapfiringtechnologytoproducealongermorepowerfulspark.Itsfouryttrium-enhancedgroundelectrodedesignsignificantlyreducesgapwear.

    FEATUREHeatfusedPlatinumandiridiumcentreelectrode

    Revolutionarysurfaceairgapfiringtechnologyfeaturingmultiplesparkpaths

    FourYttriumenhancedgroundelectrodesforoptiumaccesstoair/fuelmixture,givingmostefficientcombustion

    Electrodegapisfactoryset

    BENEFITMaximumHorsepower&Longlife

    Deliversthelongestmostpowerfulsparkforultimateengineperformance

    Maximumpower&extendedperformancelife

    Provideseaseofinstallation-neverrequiresadjustment

    A |Platinum-IrFusion

    Thismeanslessstressontheignitionsystemforquickerstarts,moreefficientfuelcombustion,andlongerperformancelife.Inaddition,Fusionsvoltagerequirementincreaseslessovertimeversusallotherplugsforlongerreliableperformanceofthevehiclesignitionsystem.

    Platinum-IrFusion|A

    Fused iridium and platinum centre electrode, sintered into an extended insulator nose

    Yttriumgroundelectrode

    Platinum/Iridiumcentreelectrode

    Type NumberHGR9BQI

    Card Number F9-4

    Recommended for vehicles built from 000 - onwards

    Recommended Service Interval

    Packaging

    1000,000km

    Blisterpack

    ForturbochargedvehiclesandlongservicelifeBoschrecommendsusingDoublePlatinumSparkPlugs-seepageA8.

    Platinum Ir Fusion

  • BoschAutomotiveAftermarket 2008 2008 BoschAutomotiveAftermarket

    vAlUE PREmIUmExclusiveBoschplatinumtechnologywithanenhanceddesignfor25%longerservicelife.BoschPlatinumPlussparkplugsfeatureapureplatinumcentreelectrodethatsheat-fusedintoanextendedceramicinsulatortoeliminateairgapswhichexistinplatinumalloy-tippedplugs.

    AndnowBoschPlatinumPlusfeaturesatapered,yttrium-enhancedv-profilegroundelectrodethatextendstheservicelife25%longerthantheoriginalBoschPlatinumSparkPlug.Thissuperiordesignreachesitsself-cleaningtemperaturefaster.Andwithlowerignitionvoltagerequirement,BoschPlatinumPlusprovidesreliablestartinginhotandcoldweatherextremesandprovidesamorereliablesparkathigherRPMswithoutmisfires.

    FEATUREExclusivePlatinumTechnologywithYttriumenhancedgroundelectrode

    OnlyBoschusespureplatinumcentreelectrode,heatfusedintoanextendedinsulator.Superiordesignreachesself-cleaningtemperatureonlysecondsafterstarting

    HeavyDutytaperedgroundelectrodeforreducedelectrodetemperature&improvedaccesstoair/fuelmixture

    Lowerignitionvoltagerequirementvs.otherplugdesigns

    BENEFIT25%longerperformancelifeoverstandardplatinumplugs

    Maximumdurability&engineprotectionduetolessmisfiring

    Increasedfuelefficiency,smootheridling&acceleration

    Reliablestarting&superioroperationunderalldrivingconditions

    A4 |PlatinumPlus PlatinumPlus|A

    Recommended for vehicles built from 199 - onwards

    Type NumberWR8DPX

    Card Number P7-4

    Availablein10boxandsinglebox

    Yttriumgroundelectrode

    PurePlatinumCentreelectrode

    Exclusive platinum technology with a tapered yttrium-enhanced v-profile ground electrode.

    Recommended Service Interval

    Packaging

    Approx60,000km

    BlisterpackSingle/10box

    Recommended for vehicles built from 199 - onwards

    Platinum Plus

  • BoschAutomotiveAftermarket 2008 2008 BoschAutomotiveAftermarket

    eConomiCAlYttrium-enhancedcoppercorecentreelectrodefor50%longerservicelife.BoschSuperPlusSparkPlugsdeliverqualityperformancebasedontechnologythatsprovenonracetracksaroundtheworldinthemostsophisticatedracingengines.

    Testinghasconfirmedthedurabilityofyttrium-enhancedcentreelectrodes.NowBoschbringsthesebenefitstoyouinBoschSuperPlus,thelongest-lastingcoppercoresparkplugonthemarket

    feAtureUniquetoBosch-Firsttoofferpreciousmetalperformanceatnon-premiumprices

    Yttriumenhancedcentreelectrodetechnology

    NickelChromiumtaperedgroundelectrodetoprotectagainsthightemperatures&extendservicelife

    Metalglassfusedresistor

    Angular,five-ribbedinsulatordesign

    Benefit50%longerlastingthanOECopperCoreSparkPlugs

    Extendedperformancelifeoverconventionalcoppercoresparkplugs

    ExtendedPlugdurability&engineprotection

    Maximuminterferencesuppression

    Preventsmisfireduetocurrentleakage

    A |SuperPlus SuperPlus|A7

    Availablein10boxandsinglebox

    Type NumberFR7DCX

    Card Number S11-4

    Nickel-chromiumgroundelectrode

    YttriumCentreelectrode

    long life yttrium-enhanced copper core centre electrode

    Recommended Service Interval

    Packaging

    Approx30,000to40,000km

    BlisterpackSingle/10box

    Recommended for vehicles built from 19 - 199

    Super Plus

  • BoschAutomotiveAftermarket 2008 2008 BoschAutomotiveAftermarket

    Forthevehiclesthatdemandthelongestservicelifeandcontinuousperformance,BoschrecommendsfittingDOUBLEPLATINUMsparkplugs.

    DoublePlatinumorDPPhavethecentreelectrodemadefrompureplatinum,justlikePlatinumPlus,andalsothegroundelectrodelaseralloyedwithpureplatinum.

    Theresultisaservicelifeof100,000kmforvehiclesfittedwithaturboorsupercharger.

    Guide only - for specific application details, please refer to the application section from page B1.

    BoschDoublePlatinum(DPP)canbeidentifiedbybluetextandringsoninsulator

    Pureplatinumcentreelectrode

    Pureplatinumlaseralloyedintogroundelectrode

    AUDIA4 TFSI Quattro 09.05 - FR6KPP332SA4 Turbo / Quattro 08.97 - 10.00 FR7KPP33+A3 Quattro 3.2L YR7LPP332W

    BMW318i [E46 ] 04.04 - 03.05 FR7KPP332

    FORDFalcon XR6 Turbo BA - BFII 07.03 - FR7KPP33U+Falcon XR8 5.0L 09.98 - 10.01 HR8DPP22U

    HOLDENCommodore VZ 09.04 - 08.06 HR7MPP302XCommodore VE 3.6L 08.07 - HR8NPP302

    HONDAIntegra Type-R 01.98 - 10.01 FR6KPP33+

    HSV5.7L Gen 3 Engines 06.99 - 08.06 HR9LPP22Y

    MAZDA3 2.0L 07.03 - HR6DPP33V6 2.3L 02.02 - HR6DPP33V

    MERCEDES BENZC230 [ 203, 204 ] 06.05 - YR7MPP33

    NSSAN200SX [ S14 ] SR20DET 04.94 - 12.99 FR5DPP222Silvia [ S13 ] SR20DE 01.91 - 10.93 FR5DPP222Silvia [ S15 ] SR20DE 01.99 - 08.02 FR7KPP33U+Skyline [ R32 ] RB20DET 09.91 - 08.93 FR6KPP33X+Skyline [ R32 ] RB20DET 05.89 - 08.93 FR8DPP33+Skyline [ R33 ] RB25DET 08.93 - 05.98 FR7KPP33U+Skyline GT-R [ R32 ] RB26DETT 08.91 - 11.94 FR6KPP33X+Skyline GT-R [ R33 ] RB26DETT 01.95 - 01.99 FR6KPP33X+Skyline GT-R [ R34 ] RB26DETT 01.99 - 08.02 FR6KPP33X+

    SUBARUImpreza WRX EJ205 11.02 - 05-05 FR6KPP33+Impreza WRX EJ205 10.00 - 10.02 FR6KPP33X+Impreza WRX Sti EJ207 10.01 - 05.05 FR6KPP33X+

    TOYOTACelica 1.8L 2ZZ-GE 08.99 - FR6KPP33+Soarer 2.5L 1JZ-GTE 05.91 - 12.01 FR7KPP33+Soarer 3.0L 2JZ-GE 01.94 - 12.00 FR7KPP33U+Soarer 4.0L 1UZ-FE 05.91 - 12.01 FR7KPP33+Soarer 4.3L 3UZ-FE 04.01 - FR6KPP33X+

    Performance vehicles Double Platinum

    Double Platinum for Performance vehicles

    - F1-4 4- F1-6 6- F2-6 6- F3-4 4- F4-4 4- F5-4 4- F5-6 6- F6-4 4- F7-4 4- F7-6 6- F8-4 4- F9-4 4- F10-6 6- F11-4 4

    FR6DP - -FR6DPX P14-4 4FR7DP P6-4 4FR7DPX P1-4 4FR7DPX P1-6 6FR7HP - -FR7KP P10-4 4FR7KPX P3-4 4FR7lPX P5-4 4FR8DP - -FR8DPX P4-4 4FR8DPX P4-6 6FR8HPX P9-4 4FR8HPX P9-6 6FR8lP - -FR8lPX P19-4 4FR8NP P11-4 4HR7DP - -HR7DPX P21-6 6HR8DPv P15-6 6HR8DPX P16-4 4HR8DPY - -HR9BPY P17-4 4HR9DPY P12-6 6WR6DP - -WR7DP P8-4 4WR7DPX - -WR8AP - -WR8DP P2-4 4WR8DPX P7-4 4WR9DP - -WR9DPX - -WR9lP P13-6 6WR9lPv P20-6 6

    FGR7DQE+ FlR8lDCU+ S9-4 4FR6DC+ - -FR7DC+ S8-4 4FR7DCX+ S11-4 4FR7DPP+FR7KCX+ S31-4 4FR7KPPU+ S38-6 6FR7lCX+ S32-4 4FR7lDC+ - -FR8DC+ - -FR8DCX+ S19-4 -FR8HDC+ - -HR6DC+ - -HR7DC+ S37-6 6HR7mPP+ - -HR8DC+ - -HR8DCv+ S30-6 6HR8DCX+ S35-4 4HR9BC+ S25-4 4HR9BC+ S25-6 6HR9BCY+ - -HR9DCY+ S26-6 6WRDC+ - -WR6DC+ - -WR7BC+ - -WR7DC+ S1-4 4WR7DCX+ S21-4 4WR7lTC+ - -WR8BC+ - -WR8DC+ S3-4 4WR8DC+ S3-6 6WR8DCX+ S22-4 4WR8lC+ - -WR8lTC+ - -WR9DC+ S16-4 4WR9DCX+ S27-6 6WR9lCX+ S28-6 6WR9lEv+ S29-6 6

    Super Plus Program Platinum Plus Program Platinum-ir fusion Program

    Single Box

    Blister Pack size

    Blister Pack

    Single Box

    Blister Pack size

    Blister Pack

    Single Box

    Blister Pack size

    Blister Pack

    Bosch Spark Plug Program

    A |SuperPlus BoschSparkPlugProgram|A9

  • BoschAutomotiveAftermarket 2008 2008 BoschAutomotiveAftermarket

    A10 |CrossReferenceTable

    BOSCH SPARK PlUG

    FR7DPX WR8DP FR8DPX WR8DPX WR7DP WR7DPX FR8DP

    NGK SPARK PlUG (equivalent )

    BCPR6ES-11

    BCPR6E-11

    BCP6ES-11

    BCP6E-11

    BkR6E-N-11

    BkR6ES-11

    BkR6E-11

    Bk6E-11

    BPR5ES

    BPR5E

    BPR5EA

    BPR5EY

    BP5E

    BP5EA

    BP5ES

    BP5ESz

    BP5EY

    BP5Ez

    BCPR5ES-11

    BCPR5EY-11

    BCPR5E-11

    BCP5ES-11

    BkR5E-11

    BPR5EA-11

    BPR5ES-11

    BPR5ES-15

    BPR5EY-11

    BP5EA-11

    BP5ES-11

    BP5ES-13

    BP5ET

    BP5EY-11

    BPR6E

    BPR6ES

    BPR6EY

    BP6E

    BP6ES

    BP6EY

    BP6Ez

    BPR6ES-N-11

    BPR6ES-11

    BPR6ES-13

    BPR6EY-11

    BPR6E-11

    BCPR5E

    BCPR5ES

    BCPR5EY

    BCP5ES

    BkR5E

    BkR5Ez

    Bk5E

    Bk5ES

    BCPR6E

    BCPR6ES

    BCPR6ET

    BCP6E

    BCP6ES

    BCP6ET

    BCP6EY

    BkR6E

    BkR6EkPA

    BkR6EN

    BkR6ES

    BkR6Ez

    Bk6E

    BOSCH SPARK PlUG

    NGK SPARK PlUG (equivalent )

    - - WR9DP HR9DPY HR8DPv WR9lP WR9lPv

    BkR6Ek

    BkR6EkB-11

    BkR6EkC

    BkUR6Ek

    BkUR6ET

    BkUR6ETB-10

    BkUR6ET-10

    BkR5EkC

    BkR5EkU

    BkR5ET-10

    BkUR5ET-10

    BPR6EFS-15BPR4E

    BPR4ES

    BPR4EY

    BP4ES

    BP4ES-11

    BP4ES-13

    BP4EY

    BP4EY-11

    BPR6EFS-15 BPR5EY-11 IGR5C-13

    CrossReferenceTable|A11

    FR7DPFR7DCX+ WR8DC+ FR8DCX+ WR8DCX+ WR7DC+ WR7DCX+ FR8DC+ FR7DC+ FR7lDC+ FlR8lDCU+ WR9DC+ HR9DCY+ HR8DCv+ WR9lCX+ WR9lEv+

    Thefollowingcataloguesectionlistspartnumbersofnon-BoschequipmentforwhichthereareinterchangeableBoschproductsorcomponentsavailable.Sinceawiderangeofdifferentdesignationsystemsareused,wewereforcedtoarrangethenon-Boschpartnumbersinauniformalphanumericalorder.Thisdiffersfromthecustomaryorderemployedbysomemanufacturers.ReconversionofBoschnumbersbacktothenumbersofothermanufacturersisnotpermitted.TheBoschtypedesignationcontainedinthiscrossreferencerepresentguidelines.Fordefinitivespark-plugrecommendation,pleaserefertothesparkplugapplication,sectionB.NoteThelawsgoverningcompetitionstipulatethatonlyBoschtypenumbersmaybeusedvis-a-visthefinalcustomerfortheidentificationofBoschparts.

    Cross Reference Table

  • BoschAutomotiveAftermarket 2008 2008 BoschAutomotiveAftermarket

    Centreelectrodewith

    welded-on

    Platinumwafer

    Diameter0.8or

    1.1mmpossible

    Centreelectrodewith

    welded-on

    platinumwafer

    Diameter0.6or

    0.8mmpossible

    Groundelectrode

    MonoNickel-

    Yttrium

    Groundelectrode

    BinaryNickel-

    Yttrium

    Groundelectrode

    MonoNickel-

    Yttriumwith

    laser-alloyed

    platinuminlay

    Groundelectrode

    BinaryNickel-

    Yttriumwith

    laser-alloyed

    Platinuminlay

    A1 |Technicalinformation

    D f t

    B C e G H l m Q r S

    Type of seat and thread

    version

    Heat range code number

    Thread length Spark position

    Electrode material

    Electrode versions D t Q

    version

    Waterproof, forshielded ignitioncable with 7mm

    Waterproof, forshielded ignitioncable with 5 mm

    Surface-gap spark plug without ground electrode

    Surface-gap spark plug with ground electrode (s)

    Half threadSemi-surface air-gapspark plug

    Motorsports Quickheat

    With suppressionresistor

    For low power engines

    1 1 11 10 9 8 7 6 4 09 08 07 06

    KH

    A

    17,5l

    B

    C Copper e P S iNickel - Yttrium Platinum SilverPlatinumIridium

    n

    e

    S

    f

    t

    D

    m

    0 Differencesfrombasicdesign 1 P0designwithNielectrode Binarygroundelectrode

    Speciallengththread 4 Extenededinsulatornose 9 PSAdesign

    10 l - l - - -15 l - l - - -22 l - - - l -222 l - - - - l23 - l - - l -232 - l - - - l30 - l l - - -302 - l - l - -33 - l - - l -332 - l - - - l

    H K M S u V W W S X Y20.8 16 16 14* 26 12

    R Burn of resistor

    S t u

    M18x1.5 M14x1.25 M14x1.25 M14x1.25 M18x1.5 M12x1.25

    C

    0.7 0.8 1.0

    V1.3

    W X Y Z1.1 1.5 2.0

    V

    G

    Super + Technology

    TechnicalInformation|A1

    Z

    3 4 5 7

    3 1 3 4

    12.7

    19

    12.711.2

    17.5 19

    11.2 19

    19

    17.5 19

    26.5

    17.5

    25

    9.5 9.5 12.7

    26.5 26.5 26.5

    11.2

    25

    11.2

    25 25

    M10x1 M10.1 M12x1.25 M14x1.25 M14x1.25 M12x1.25 M12x1.25

    16

    M12x1.25

    16 16 20.8 19 17.5 16 14

    Type code explanation

    Centreelectrodewith

    welded-on

    Platinumwafer

    Diameter0,8

    or1,1mmpossible

    Centreelectrodewith

    welded-on

    platinumpin

    Diameter0,6

    or0,8mmpossible

    Groundelectrode

    Mono-nickel

    Yttrium

    Groundelectrode

    BinaryNickel-

    Yttrium

    Groundelectrode

    MonoNickel-

    Yttriumwith

    laser-alloyed

    Platinuminlay

    Groundelectrode

    BinaryNickel-

    Yttriumwith

    laser-alloyed

    Platinuminlaye

    j f

    17.517.5

  • BoschAutomotiveAftermarket 2008 2008 BoschAutomotiveAftermarket

    A14 |Technicalinformation

    Spark Plug with AIR-GAP spark techniques

    Spark plugs with SURFACE-GAP spark techniques

    Spark plugs with AIR-SURFACE spark techniques

    Why no more non-resistor spark plugs?

    Sincetheearly80s,fuelinjectionsystemshavebeendesignedbymanufacturerstobefittedwithRESISTORsparkplugs.

    XFittingnon-resistorplugsinaresistorapplicationcan:

    EffectsophisticatedelectronicsDamageexpensivecomponentryCreateradiointerferenceEffectoverallperformanceIncreasefuelusage

    Resistorsparkplugscanbefittedinnon-resistorapplications

    BOSCH RECOMMENDS TO FIT A RESISTOR TYPE SPARK PLUG FOR EVERY APPLICATION

    Why should you choose Bosch Super Plus spark plugs?

    Yttriumallowsustoproduceapointedgroundelectrode-anewoptimiseddesignonmostSuperPlussparkplugs.

    Improvedandmoreefficientperformance.

    Italsoincreasestheprotectionofyourcatalyticconverterreducingtheriskofcostlydamagetotomoreefficientcombustion.

    What advantages does yttrium give a spark plug?

    OutstandingprotectionagainstcorrosionExcellentignitionreliabilityOptimumperformancethroughoutitsservicelife

    Do yttium spark plugs have a longer life?

    Theelectrodewithyttriumalloyshowssignificantlylesswearthananelectrodewithoutyttrium.

    What is the function of a spark plug and why is it a vital engine component?

    Thefunctionathesparkplugistointroducetheignitionenergyintothecombustionchamberandtoinitiatecombustionofthecompressedair-fuelmixture.Itaccomplishesthistaskbygeneratingasparkbetweenitselectrodes,whichthengeneratestherequiredheattoigniteasmoothburnoftheair/fuelmixture.Thesparkplugisanimportantfactorindeterminingoptimalperformanceandreliablefunctioningofanengine.Itmustpermitreliablecoldstarting,itmustguaranteethatthereisnomisfiringduringacceleration,anditmustwithstandtheenginebeingoperatedforhoursonendatmaximumpower.Theserequirementsapplythroughouttheentireservicelifeofthesparkplug.For100yearsBoschsparkplugshavebeendesignedforoptimalperformance,reliablefunctioningandtowithstandextremeoperatingconditions.Todaythecontinuouslydevelopingsparkplugisakeyenginesystemcomponent.Itplaysamajorroleinfueleconomy,clean,efficientcombustionandthereliableoperationofenginesandcatalyticconverters

    What are the different types of spark plugs?

    Thereisalargevarietyofdifferentsparkplugdesignswithmorethan1400variations.Designvariantsandspecialmaterialssuchasplatinum,silveroryttriumallowBoschsparkplugstobeusedinawidevarietyofapplicationstoday.InallBoschhasdevelopedmorethan20,000differenttypesofsparkplugsoverthelast100years.

    Why do we need to change spark plugs?

    Duringoperation,thesparkplugissubjectedtobothwearandtofoulingandshouldbereplacedatregularintervals.Inthecourseofitsservicelife,thesparkplugundergoeschangesthatincreasetherequiredignitionvoltage.Whentherequiredvoltagereachesalevelthatcannolongerbecompensatedforbythevoltagereservetheresultismisfiring.Thesechangescanbecausedby:

    ElectrodewearEnginewearAbnormaloperatingconditions(pre-ignition,detonation,highoilconsumption).

    How do I read a spark plug?

    Readingthesparkplugsprovidesvaliableinformationonsparkplugandengineoperatingconditions.Refertopagexxxinthiscatalogue.

    The advantagesHighlevelignitionreliabilitythroughouttheplugsentireservicelife.GoodcoldstartingbehaviourLowenginevoltagerequirements

    Frontelectrode,Centreelectrode

    Sideelectrode,Centreelectrode

    The advantagesHighlevelsofignitionreliabilityduetotheinstantaneousarcingofthesparkandimmediateignitionoftheA/FmixtureAdditionalcoldstartreliabilityevenwhenbatteryvoltageislow.Improvedcombustionprotectstheengineandinparticularthecatalyticconverter.Sincemisfiringisavoided,fuelconsumptiondropsevenmore.

    Whenitformsthearcdirectlybetweenthecentreelectrodeandthegroundelectrode,theignitionsparkpassesthroughtheair-fuelmixturelocatedbetweentheelectrodes.

    Togetherwiththeincreasedspacebetweentheelectrodes,thesharpV-grooveedgesresultingfromthegroundelectrodesshapeensurethattheignitionsparksthermalenergyistransferredeasilyandmoreeffectivelyintotheair-fuelmixture.Thisleadstoapronouncedflamecoreandcompletecombustionirrespectiveofoperatingconditions

    Sideelectrode,CentreElectrodeorSideelectrode,insulatorCentreelectrode

    Shapedgroundelectrode,Centreelectrode

    Thegroundelectrodesarearrangedsothatonlyparticularlylongandpowerfulsurface-gapsparksaregenerated

    The advantagesImprovedignitionreliabilitythroughoutthesparkplugsentireservicelife.Optimalprotectionofthecatalyticconverter(s).Particularlylowlevelofignitionvoltagerequired.Selfcleaningeffectsincaseofsoothing.Extendedoperatinglifethankstodesignwithseveralgroundelectrodes.

    Sideelectrode,CentreElectrodeorSideelectrode,insulatorCentreelectrode

    Sparkplugsfeaturingtheair-surfacesparkprinciplearebeingusedincreasinglyinOriginalEquipmentapplications.Forreliableignition,theignitionsparkselectsthebestroutetotakefromthecentreelectrodeiteitherfunctionsasanairsparkorasanair-surfacespark.

    Withanairspark,whenignitiontakesplacethearcjumpsacrossdirectlyfromthecentretothegroundelectrode.Theair-surfaceplugontheotherhandusesexistingchargecarrierstotraveltotheinsulatornosefromwhereitthenjumpsacross,asanairspark,tothegroundelectrode.

    The advantagesIncreasedignitionreliabilitythroughoutthesparkplugsentireservicelifeImprovedcoldstartcharacteristicsLowignition-voltagerequirementSelfcleaningeffectsincaseofsootingOptimalprotectionofthecatalyticconverter(s)

    Theconfigurationwithseveralgroundelectrodesincreasestheplugslife.

    Technicalinformation|A1

    Spark plug spark techniques FAQs

  • BoschAutomotiveAftermarket 2008 2008 BoschAutomotiveAftermarket

    How does Bosch test enginges to determine the heat range and what heat range should I use?

    Do Bosch spark plugs meet original equipment requirements?

    Does theBosch part number have meaning to help detemine the specifications of the plug?

    How should spark plugs be tightened for best performance?

    Boschrecommendswheninstallingsparkplugstouseatorquewrenchandthecorrecttorqueinft.-lbs.Aslistedbelow

    10 mm with gasket

    12 mm with gasket

    14 mm with gasket

    torque ft.-lbs 8-11

    12-15 19-22

    14 mm tapered seat

    1 mm with gasket

    1 mm tapered seat

    torque ft.-lbs 12-15

    20-23 14-17

    Ifatorquewrenchisnotavailable,handtightenthepluguntilitisseatedinthecylinderhead.Sparkplugswithgasketsshouldbetightenedanadditional90.Sparkplugswithtaperedseatsshouldbetightenedanadditional15.

    Note:Avoidovertighteningorundertighteningassparkplugorenginedamagemayresult.

    Are Bosch spark plugs pre-gapped at the factory?

    MostBoschsparkplugsarefactorypre-gappedforpopularvehicleapplications.Thegapmeasurementsareindicatedeitheronthebox,orbypartnumberlocatedonthesparkplugshell.Xsuffix=1.1mmYsuffix=1.5mmUsuffix=1.0mmBoschSuperPlus,platinumandresistorsparkplugsalsohavefactory-setgaps.Formostplugs,thesettingisshownontheplugpackage.Thesegapsarecorrectforthemostpopularapplicationsoftheseplugs.Thereareapplicationshowever,forwhichthegapsettinghastobeadjustedaccordingtothevehiclemanufacturersspecification.

    Toavoiddamagetoasparkpluginprocessofadjustingthegap,itisimportanttofollowtheseguidelines.

    Towidentheelectrodegap,useatoolthatonlypullsbackthegroundelectrode,withoutapplyingpressuretothecentreelectrode. Thetoolmustnotbewedged betweentheelectrodesasthatmaycausedamagetotheinsulatornose.

    Toclosetheelectrodegap,carefullytaptheplug,electrodefirst,onahardsurface,asshowninthe illustration.

    What is detonation?

    Detonationorknockingisuncontrolledcombustionwithaverysteepriseinpressure.Itiscausedbyspontaneousignitionofthefuelmixture,whichhasnotyetbeenreachedbytheignitionspark.Asthehigh-pressurewaveshitthewallsofthecombustionchamber,theirimpactproducesametallicknockingsound.Failuretorecogniseanddealwithknockingwillinevitablyleadtoseriousenginedamage.

    What is pre-ignition?

    Pre-ignitionisanuncontrolledignitionprocessinwhichthetemperaturesinthecombustionchambercanrisetosuchanextentastocauseseriousdamagetotheengineandthesparkplug.Full-throttleoperationcangeneratelocalisedhotspotsandcausepre-ignitionatthefollowinglocations:Atthetipofthesparkplugsinsulator noseOntheexhaustvalveOntheprotrudingsectionsofthe headgasketOnloosedeposits(ash&carbon residue)Onloosedeposits(ashandcarbonresidue).

    Pre-ignitionoftheair/fuelmixturecancauseseveredamagetoanengineandthisisonereasonwhytheheatrangeofasparkplugissoimportant.

    What is a heat range?

    Thesparkplugsheatrangeisanindexofitscapacitytodissipatethermalenergy.Thedifferentcharacteristicsofautomotiveenginesregardingoperatingload,compression,enginespeed,cooling,andfuelmakeitimpossibletorunallengineswithastandardsparkplug.Thesamesparkplugmaygetveryhotinoneenginetype,butmayreachonlyarelativelylowtemperatureinanother.

    Inthefirstcase,theair-fuelmixturewouldigniteontheglowingpartsofthesparkplugprojectingintothecombustionchamber(pre-ignition)and,inthesecondcase,theinsulatortipwouldsoonbecomesobadlyfouledbycombustiondepositsthatmisfiringwouldoccur.Toensurethattheplugrunsbetweenthedesiredtemperatures,plugswithdifferentheatcapacitiesweredeveloped.Thesocalledheatrange,whichisassignedtoeachsparkplug,isusedtocharacterisetheseheatdissipationcapacities.Aplugwithalowheatrangenumber(e.g.2-4)indicatesacoldplugthatquicklydissipatesheattotheengineblockandcoolingsystem,whileahighcode(e.g.7-10)indicatesahotplugthatretainsheat.

    Byproperlyselectingtheheatrangeoftheplug,itensuresthattheplugwilloperatebetweentheplugsdesignedoperatingrangeof500-900degreesCelsius.Inthisrange,thesparkplugwillbeself-cleaning,yetwillnotbehotenoughtopre-ignitetheair/fuelmixture.

    Toensureoptimalperformanceinyourcar,BoschhastestedeachvehiclemodelandthevariousenginesavailableforthatmodellistedintheSparkPlugcatalogueorourweb-page.Usingaspecialsparkplugwithathermocouplebuiltin,Boschengineersfindthehottestcylinderinanengineandthentestvarioussparkplugsinthatcylinderuntiltheidealplugisfound.Thisensuresthatyouwillalwaysgetthebestperformancepossible.

    Ifyouhavemodifiedyourenginewithaperformancesystemsuchasaturbocharger,supercharger,ornitrous,therecommendedsparkplugmaynotbecorrect.Youmayneedtouseaplugwithacolderheatrangetocompensatefortheadditionalheatgeneratedbytheengine.Boschrecommendsthatinthesesituations,youconsultaqualifiedenginebuilderforassistanceindeterminingtheappropriateheatrange.

    I want to use Bosch spark plugs, but have modified my engine by adding a performance system. Can I still use the plug listed in the catalogue for my vehicle?

    How often do I need to change my plugs?

    Asarule,Boschrecommendsthatyoufollowthereplacementintervallistedinyourvehicleownersmanual,howeverwehighlyrecommendthatyouinspect(read)yoursparkplugsannuallyandreplaceasrequired,toinsureoptimumengineperformance.

    Yes!Boschsparkplugsmeetorexceedwarrantyrequirementsofallvehicleandenginemanufacturers,andwhenproperlyinstalledinaccordancewiththerecommendedapplication,willnotadverselyaffecttheemissioncontrolsystemofanyvehicle.

    What about vehicle manufacturer warranties?

    Consumersaresometimestoldbyanautomobiledealersservicewriterormechanicthatabrandofreplacementsparkplugcannotbeusedintheconsumersvehicleduringthewarrantyperiod.Theclaimismadethatuseofthebrandwillvoidthewarranty,withthestatementorimplicationthatonlytheoriginalequipmentbrandofsparkplugsmaybeused.This,ofcourse,tendstocastdoubtonthequalityofthereplacementsparkplug.Thatclaimisnottrue.UndertheMagnuson-MossWarrantyActandgeneralprinciplesoftheFederalTradeCommissionAct,amanufacturermaynotrequiretheuseofanybrandofsparkplug(oranyotherarticle)unlessthemanufacturerprovidestheitemfreeofchargeunderthetermsofthewarranty.So,iftheconsumeristoldthatonlytheoriginalequipmentsparkplugwillnotvoidthewarranty,theyshouldrequestthattheOEsparkplugbeprovidedfreeofcharge.Iftheyarechargedforthesparkplug,themanufacturerordealerisinviolationoftheMagnuson-MossWarrantyAct.

    Yes!RefertopageA12-A13ofourcataloguewhichisalsoavailablefromourwebsitewww.bosch.com.au

    What are the advantages of surface air gap plugs? (eg. FLR8LDCU+)

    Tovalidatetheimprovedperformanceofsurfaceairgapplugswithmultiplegroundelectrodes,extensivetestingwasconductedinthelaboratoryandinthefield:

    Thefirsttestmeasuredtheenergy transferefficiencyofthetwo-electrode plugcomparedtoconventionaland otherpremiumplugswithasingle groundelectrode.Thiscertified laboratorytestmeasuredthe additionalpressuregeneratedbythe sparkdischargeinapressure chamber.Higherpressureequalsa higherenergytransferbythespark. Thetestshowedthatthetwo- electrodeplugstransferredmore energytotheair/fuelmixtureresulting inimproveddriveablilityandlower emissions.

    Asasparkplugwearsviaerosion&corrosion,thegapbetweenthecentre&groundelectrodesgetslarger.Thelargerthegap,themorevoltageisrequiredtoproduceaspark,untilthecapabilityoftheignitionsystemisexceededandtheplugmisfires.Itwasfoundthatthemultiplegroundelectrode,yttriumcentreelectrodeplugreducesgaperosion&increasingvoltagerequirementsovertime.

    Testsforcarbonfoulingwere simulatedinacoldcellbyrepeatedly cooling,startingandoperatingthe enginewithoutlettingthesparkplugs reachtheirself-cleaningtemperature. Thiscycledoesnotletthesparkplug reachitsself-cleaningtemperature andallowstheformationofcarbon deposits.

    Thetestsfoundthatmultiplegroundelectrodesparkplugshadbettercoldrestartreliabilitythanconventionalplugs.

    A16 |Technicalinformation Technicalinformation|A17

    FAQs FAQs

  • BoschAutomotiveAftermarket 2008 2008 BoschAutomotiveAftermarket

    A18 |Technicalinformation

    Does technology used in racing plugs find its way into Bosch spark plugs?

    Yes!Racing,asithasfor100years,providesagreatdevelopmentalimpetusandtestbedforsparkplugdurabilityandperformance,andwhatislearnedatIndyorDarlington,orLeMansorBathursthelpsimprovethesparkplugsinstalledintodayscarsortrucks.Fromthe2003and2004V8Supercar

    ChampionshipswonbyStoneBrothersRacing,MarcusAmbrosehaveusedBoschsparkplugs.AlsothefirstIndy500wonbyRayHarrounsMarmonWasptothelast17Indy500winners,andmanyinbetween,eachhaveusedBoschsparkplugs.

    GloSSArY

    multi Ground.Plugswithmultiplegroundelectrodesarecalledmultiground.Theseplugsalsousesurfacegapsparkpatternsandthemultiplegroundelectrodesincreaseservicelife.

    Surface GapSurfacegaptechnologyiswhenthegroundelectrodeistothesideofthecentreelectrode.Therecanbenogroundelectrode(racingapplications),multiplegroundelectrodes(PT+4andPT2),orasinglegroundelectrode.Thesesparkplugshaveimprovedefficiencyandahigherprobabilityofignitingaleanair/fuelmixture.

    ResistorManysparkplugshaveaspecialconductiveglasssealbetweenthecentreelectrodeandtheterminalstud.Thissealactsasaresistorintheplugwhichreducesthetransmissionofpulsesofenergytotheignitioncables.ThesepulsescancauseRadioFrequencyInterference(RFI)withelectricalcomponentsinthecar.Forsomenewercars,resistorplugsarerequiredforeffectivecommunicationbetweentheplugsandtheelectronicignition.

    Radio Frequency Interference (RFI)Whenthesparkplugcreatesaspark,ahighfrequencyburstofenergyiscreated.Ifthisenergywastotravelthroughtheignitionwires,itcouldcauseinterferencewithothersensitiveelectronicdevices,suchastheradioorelectroniccontrolunits.Theresistorinthesparkplugreducesthisenergybeforeitcausesinterferencewithotherelectricalcomponents.

    FoulingFoulingoccurswhenaplugbecomescontaminatedwithfuel,oil,orothercontaminatesthatpreventtheplugfromgeneratingaspark.Mostplugstodayaredesignedtoreducefoulingandbecomeself-cleaningwhentheyreach500degreesCelsius.However,shorttrips,lowspeeddriving,impropersparkplugheatrange(toocold),impropertiming,oranoilleakinthecombustionchambercancauseasparkplugtobecomefouled.

    BridgingOvertime,contaminantscanbuildonthesurfaceofthesparkplugifitdoesnotreachself-cleaningtemperatureoften.Thesebuild-upscangrowbetweentheelectrodesuntiltheyareactuallyconnectedbyabridgeofcontaminants.Thiswilloftencausemisfire

    FlashoverOccurswhenthesparkdoesnotjumpbetweentheelectrodeswithinthecombustionchamber,butinsteadjumpsbetweenthemetalshellandtheterminalontopoftheplug.Thiswillalwayscauseamisfiresincetheair/fuelmixturewillnotbeignited.Boschsparkplugshavearibbedinsulatortopreventflashover.

    QuenchingThepurposeofasparkplugistointroduceenoughheatintothecombustionchambertoinitiateasmoothburnoftheair/fuelmixture.Quenchingoccurswhenthatheatgeneratedbythesparkisre-absorbedbackintothegroundelectrode,thecentreelectrode,andtheceramicinsulation.Toreducequenchingandensureanefficienttransferofheat,BoschPlatinum+4andPlatinum2sparkplugsusesurfacegaptechnologies.

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    1 + 2 NormalInsulator nose greyish-yellow to russet brown. Engine is in order. Heat range of plug correct.Mixture setting & ignition timing are correct, no misfiring, cold starting device functions correctly.No deposits from fuel additives containing lead or from alloying constituents in the engine oil. No overheating. 3 + 4 Soot - carbon fouled Insulator nose, electrodes & spark-plug shell covered with velvet-like, dull black soot deposits.Cause : Incorrect mixture setting (carburettor, fuel injection) mixture too rich, air filter very dirty, automatic choke not in order or manual choke pulled too long, mainly short distance driving, spark plug too cold, heat range code number too lowEffect : Misfiring, poor cold-starting performance.Remedy : Set mixture & cold-starting device correctly, check air filter.5 + 6 Oil-fouledInsulator nose electrodes & spark-plug shell covered with shiny soot or carbon residue.Cause : Too much oil in combustion chamber. Oil level too high, badly worn piston rings, cylinders & valve guides. In two stroke gasoline engines, too much oil in mixture.Effect : Misfiring, poor starting performance.Remedy : Overhaul engine, correct fuel-oil mixture, new spark plugs.

    7 + 8 Lead depositsIn places the insulator nose is glazed brownish yellow; this may also tend towards green.Cause : Fuel additives which contain lead.The glaze appears in the case of heavy engine loading after lengthy part-load operation.Effect : Under heavy loading deposits become electrically conductive & cause misfiring.Remedy : New spark plugs, cleaning is pointless.

    13 Partially melted centre electrodeCentre electrode partially melted, blistered, spongy insulator tip.Cause : Overheating due to auto-ignition, eg: due to overadvanced ignition timing, combustion deposits in combustion chamber, defective valves, defective ignition distributor, inadequate fuel quality, heat range possibly too low.Effect : Misfiring, loss of power. (engine damage)Remedy : Check engine, ignition & mixture formation. New spark plugs with correct heat range.

    9 + 10 Heavy Lead depositsIn places the insulator nose is thickly glazed brownish-yellow, this may also tend towards green. Cause : fuel additives which contain lead.The glaze appears in the case of heavy engine loading after lengthy part-load operation.Effect : Under heavy loading, deposits become electrically conductive & cause misfiring.Remedy : new spark plugs, cleaning is pointless.11 + 12 Heavy Lead depositsHeavy ash deposits from oil & fuel additives on the insulator nose, in the scavenging area & on the ground electrode.The structure of the ash is loose to cinder-like.Cause : Alloying constituents, in particular from oil,can deposit this ash in the combustion chamber & on the spark-plug face.Effect : Can lead to auto ignition with loss of power & engine damage.Remedy : Repair engine. New spark plugs. Possibly use other oil.

    14 Centre electrode melted away Centre electrode melted away, ground electrode also severely attacked.Cause : Overheating due to auto-ignition, eg: due to over-advanced ignition timing, combustion deposits in combustion chamber, defective valves, defective ignition distributor, inadequate fuel quality.Effect : Misfiring, loss of power, possibly engine damage. Overheated centre electrode may result in insulator nose cracking.Remedy : Check engine,ignition & mixture formation. New spark plugs.15 Partially melted electrodesCauliflower-like appearance of the electrodes. Possibly deposition of foreign matter.Cause : overheating due to auto-ignition, eg: due to over-advanced ignition timing, combustion deposits in combustion chamber, defective valves, defective ignition distributor, inadequate fuel quality.Effect : Loss of power prior to complete failure. (engine damage).Remedy : Check engine, ignition & mixture formation. New spark plugs.

    16 Heavy wear on centre electrodeCause : Recommended interval between sparkplug changes not complied with.Effect : Misfiring, particularly when accelerating. (ignition voltage no longer sufficient for large electrode gap) Poor starting performanceRemedy : New spark plugs.17 Heavy wear on ground electrodeCause : Aggressive fuel & oil additives. Unfavourable influence of gas turbulence in the combustion chamber, possibly caused by deposits. Knocking. No overheating.Effect : Misfiring particularly when accelerating. (ignition voltage no longer sufficient for large electrode gap.) Poor starting performance.Remedy: new spark plugs.

    Manypremiumpassengercarsparkplugsusemultiplegroundelectrodesandpreciousmetals,suchasyttriumandplatinum,whichareadirectresultoftheirdevelopmentandtestinginlongdistanceracing.

    SparkPlugfaces|A19

    18 Cracking of insulator noseCause: Mechanical damage due to impact, dropping or pressure on the centre electrode resulting from incorect handling. In marginal cases - especially after excessively long use - the insulator nose may crack due to deposits between the centre electrode and insulator nose, and due to corrosion of the centre electrode. Effect: Misfiring, sparkover at points not reliably supplied with fresh mixture.Remedy: New spark plugs.

    FAQs Spark Plug faces

  • BoschAutomotiveAftermarket 2008 2008 BoschAutomotiveAftermarket

    D 7 AC 0,9 4 Super M 18x1,5 10,9 20,8 Ma D 8 AC 0,9 4 Super M 18x1,5 10,9 20,8 Ma

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    DRDR 6 BC 0,7 3 Super R M 18x1,5 10,9 20,8 O Ma DR 7 BC 0,8 3 Platinum R M 18x1,5 10,9 20,8 O Ma DR 8 BC 0,9 3 Super R M 18x1,5 10,9 20,8 O Ma BPX 1,1 1 Platinum R M 18x1,5 10,9 20,8 O Ma BPX+ 1,1 1 Platinum R M 18x1,5 10,9 20,8 O MaDR 9 BC 0,9 3 Super R M 18x1,5 10,9 20,8 O Ma BPX 1,1 1 Platinum R M 18x1,5 10,9 20,8 O Ma BPX+ 1,1 1 Platinum R M 18x1,5 10,9 20,8 O MaDR 10 BC 0,9 3 Super R M 18x1,5 10,9 20,8 O Ma

    FF 07 CS Silver M 14x1,25 19 16 O SAE Racing DER Ni-Yt R M 14x1,25 19 16 O SAE Racing F 08 CS Silver M 14x1,25 19 16 O SAE Racing CS 0 Silver M 14x1,25 19 16 O SAE Racing F 09 CS 0,6 6 Silver M 14x1,25 19 16 O SAE Racing F 2 CS 0,6 6 Silver M 14x1,25 19 16 O SAE Racing F 3 CS 0,6 6 Silver M 14x1,25 19 16 O SAE Racing F 4 CS 0,6 6 Silver M 14x1,25 19 16 O SAE Racing F 5 DP 0 R 0,6 7 Platinum R M 14x1,25 19 16 O Ma Special platinum electrode F 6 DSR 0,7 3 Silver R M 14x1,25 19 16 O SAE

    FGRFGR 6 DQI Fusion F8-4 HQE 0 1,4 25 Ni-Yt R M 14x1,25 19 16 O SAE KQE 1,6 20 Ni-Yt R M 14x1,25 19 16 O SAEFGR 7 DQE+ 1,35 23 Super+ R M 14x1,25 19 16 O SAE Ni-Yt centre electrode DQI Fusion R F1-4 F1-6 DQP 1,6 27 Platinum R M 14x1,25 19 16 O SAE KQE 0 1,6 20 Ni-Yt R M 14x1,25 19 16 O SAE MQPE 1,6 new Platinum R M 14x1,25 25 16 O SAEFGR 8 DQI R F3-4 KQE 1,6 20 Ni-Yt R M 14x1,25 19 16 O SAE KQE 0 1,4 20 Ni-Yt R M 14x1,25 19 16 O SAE

    FLRFLR 7 LDCU 1,0 12 Super R M 14x1,25 19 16 O SAEFLR 8 LDCU+ 1,0 12 Super+ R M 14x1,25 19 16 O SAE S9-4 Ni-Yt centre electrodeFLR 9 LTE 1,0 22 Ni-Yt R M 14x1,25 19 16 O SAE

    FQRFQR 8 LE 2 0,8 19 Ni-Yt R M 14x1,25 19 16 O SAE LEU 2 1,0 19 Ni-Yt R M 14x1,25 19 16 O SAE

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    Spark Plug faces for the Spark Plug program Spark Plug program

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  • BoschAutomotiveAftermarket 2008 2008 BoschAutomotiveAftermarket

    FR 5 DC 0,8 3 Super R M 14x1,25 19 16 O Ma DCX 1,1 3 Super R M 14x1,25 19 16 O Ma DP 0,6 1 Platinum+ R M 14x1,25 19 16 O Ma DPP 222 U 1,0 21 Platinum R M 14x1,25 19 16 O SAE Double platinum DTC 0,8 11 Super R M 14x1,25 19 16 O SAE LDC 0,8 12 Super R M 14x1,25 19 16 O M4 FR 6 DC+ 0,8 3 Super+ R M 14x1,25 19 16 O Ma Ni-Yt centre electrode DCX 1,1 3 Super R M 14x1,25 19 16 O Ma DDC 0,8 12 Super R M 14x1,25 19 16 O SAE DP 0,6 1 Platinum+ R M 14x1,25 19 16 O Mb DPP22 0.8 21 Platinum R M 14x1,25 19 16 O SAE Double platinum DPP 22 U 1,0 21 Platinum R M 14x1,25 19 16 O SAE Double platinum DPX 1,1 1 Platinum R M 14x1,25 19 16 O Ma DPX 1,1 1 Platinum+ R M 14x1,25 19 16 O Ma P14-4 DS 0,7 3 Silver R M 14x1,25 19 16 O Mb DTC 0,7 11 Super R M 14x1,25 19 16 O Ma KDE 0 0,6 12 Ni-Yt R M 14x1,25 19 16 O Ma KDC 1,0 12 Super R M 14x1,25 19 16 O SAE KTC 0,8 22 Super R M 14x1,25 19 16 O SAE KPP33X 1,1 21 Super+ R M 14x1,25 19 16 SAE LDC 0,9 12 Super R M 14x1,25 19 16 O SAE LTC 1,0 22 Super R M 14x1,25 19 16 O Ma MPP 332 0,8 30 Platinum+ R M 14x1,25 26,5 16 O SAE Double platinumFR 7 DC+ 0,9 3 Super+ R M 14x1,25 19 16 O Ma S8-4 Ni-Yt centre electrode DCX+ 1,1 3 Super+ R M 14x1,25 19 16 O Ma S11-4 Ni-Yt centre electrode DP 0,6 1 Platinum+ R M 14x1,25 19 16 O Mb P6-4 DPP+ 0,7 21 Platinum+ R M 14x1,25 19 16 O SAE Double platinum DPP 33 0,7 21 Platinum R M 14x1,25 19 16 O SAE Double platinum DPX 1,1 1 Platinum+ R M 14x1,25 19 16 O Ma P1-4 P1-6 HC 0 X 1,1 10 Super R M 14x1,25 19 16 O SAE HP 0,8 1 Platinum+ R M 14x1,25 19 16 O SAE HPP 222 1,0 28 Platinum R M 14x1,25 19 16 O SAE Double platinum KCW 0,9 3 Super R M 14x1,25 19 16 O SAE KCX 1,1 3 Super+ R M 14x1,25 19 16 O Ma S31-4 KTC 1,0 22 Super R M 14x1,25 19 16 O Ma KP 0,8 1 Platinum+ R M 14x1,25 19 16 O SAE P10-4 KPP 33 0,7 21 Platinum+ R M 14x1,25 19 16 O SAE Double platinum KPP 33U+ 0,7 21 Super+ R M 14x1,25 19 16 SAE S38-6 KPX 1,1 1 Platinum+ R M 14x1,25 19 16 O Ma P3-4 LC 2 0,7 19 Super R M 14x1,25 19 16 O SAE Copper core in centre and ground electrode LCX+ 1,1 19 Super+ R M 14x1,25 19 16 O SAE S32-4 LDC+ 1,0 12 Super+ R M 14x1,25 19 16 O SAE Ni-Yt centre electrode LPX 1,1 1 Platinum+ R M 14x1,25 19 16 O SAE P5-4 ME 0,9 3 Ni-Yt R M 14x1,25 26,5 16 O SAEFR 8 DC+ 0,8 3 Super+ R M 14x1,25 19 16 O Ma Ni-Yt centre electrode DCX+ 1,1 3 Super+ R M 14x1,25 19 16 O Ma S19-4 Ni-Yt centre electrode DCY 1,5 3 Super R M 14x1,25 19 16 O Ma DP 0,8 1 Platinum+ R M 14x1,25 19 16 O Ma DPP 33 1,0 30 Platinum R M 14x1,25 19 16 O SAE Double platinum

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    H 2 CS 0,6 6 Silver M 14x1,25 17,5 16 O Mb RacingH 3 CS 0,6 6 Silver M 14x1,25 17,5 16 O Mb RacingH 4 CS 0,6 6 Silver M 14x1,25 17,5 16 O Mb Racing

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    HGR 6 DQI Fusion O F11-4 KQC 1,6 20 Super R M 14x1,25 17,5 16 O SAEHGR 7 KQC 1,6 20 Super R M 14x1,25 17,5 16 O SAEHGR 8 DQI Fusion O F7-4 F7-6HGR 8 MQI Fusion F10-6HGR 9 BQI Fusion F9-4 DQI Fusion F5-4 F5-6

    HGR

    SparkPlugprogram|A

    FR8 DPX 1,1 1 Platinum+ R M 14x1,25 19 16 O Ma P4-4 P4-6 DS 0,9 3 Silver R M 14x1,25 19 16 O Ma HC 0,8 8 Super R M 14x1,25 19 16 O SAE HDC 1,0 12 Super R M 14x1,25 19 16 O Ma HC 0 X 1,1 10 Super R M 14x1,25 19 16 O Mb HP 0,9 17 Platinum R M 14x1,25 19 16 O Ma HP+ 0,9 17 Platinum+ R M 14x1,25 19 16 O Ma HP 0 1,1 17 Platinum R M 14x1,25 19 16 O Ma Special platinum electrode HPX+ 1,1 Platinum+ R M 14x1,25 19 16 O Ma P9-4 P9-6 KCU 1,0 3 Super R M 14x1,25 19 16 O Ma KDC 1,0 12 Super R M 14x1,25 19 16 O SAE KTC 1,0 22 Super R M 14x1,25 19 16 O Ma LC 0,7 19 Super R M 14x1,25 19 16 O Ma LCX 1,1 19 Super R M 14x1,25 19 16 O SAE LPX 1,1 1 Platinum+ R M 14x1,25 19 16 O SAE P19-4 ME 0,9 3 Ni-Yt R M 14x1,25 26,5 16 O SAE NP 0,9 1 Platinum R M 14x1,25 26,5 16 O SAE P11-4 SE 0 0,9 1 Ni-Yt R M 14x1,25 26,5 16 O SAE SPP 332 1.0 30 Platinum R M 14x1,25 26.5 16 O SAE Double platinumFR 9 DC 0,8 3 Super R M 14x1,25 19 16 O Ma DCX 1,1 3 Super R M 14x1,25 19 16 O Ma HC 0,9 8 Super R M 14x1,25 19 16 O Ma HCV 1,3 8 Super R M 14x1,25 19 16 O Ma HP 0,9 17 Platinum+ R M 14x1,25 19 16 O Ma HPV 1,3 17 Platinum+ R M 14x1,25 19 16 O Ma LCX 1,1 19 Super R M 14x1,25 19 16 O Ma

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    HLRHLR 8 STEX 1,1 22 Super R M 14x1,25 25 16 O

    Spark Plug program Spark Plug program

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  • BoschAutomotiveAftermarket 2008 2008 BoschAutomotiveAftermarket

    A4 |Technicalinformation

    HRHR 5 DC 0,6 3 Super R M 14x1,25 17,5 16 O MaHR 6 BC 0,9 3 Super R M 14x1,25 11,2 16 O Ma DC+ 0,8 3 Super+ R M 14x1,25 17,5 16 O Ma Ni-Yt centre electrode DP 0,7 1 Platinum+ R M 14x1,25 17,5 16 O Mb DS 0,6 3 Silver R M 14x1,25 17,5 16 O MbHR 7 DC+ 0,8 3 Super+ R M 14x1,25 17,5 16 O Ma Ni-Yt centre electrode DCX 1,1 3 Super R M 14x1,25 17,5 16 O SAE DCY 1,5 3 Super R M 14x1,25 17,5 16 O Ma DCY+ 1,5 3 Super+ R M 14x1,25 17,5 16 O Ma S37-6 DP 0,7 1 Platinum+ R M 14x1,25 17,5 16 O Ma DPP 22 1,2 21 Platinum R M 14x1,25 17,5 16 O SAE Double platinum DPX 1,1 1 Platinum R M 14x1,25 17,5 16 O SAE P21-6 MPP+ 1,0 21 Super+ R M 14x1,25 25 16 O SAE Double platinum MPP 302 1,1 21 Platinum R M 14x1,25 25 16 O SAE Double platinumHR 8 AC 0,9 4 Super R M 14x1,25 11,2 16 O Ma BC 0,9 3 Super R M 14x1,25 11,2 16 O Ma BCY 1,5 3 Super R M 14x1,25 11,2 16 O Ma BP 0,9 1 Platinum+ R M 14x1,25 11,2 16 O Ma BPX 1,1 1 Platinum+ R M 14x1,25 11,2 16 O Ma DC+ 0,8 3 Super+ R M 14x1,25 17,5 16 O Ma Ni-Yt centre electrode DCV+ 0,8 3 Super+ R M 14x1,25 17,5 16 O Ma S30-6 Ni-Yt centre electrode DCX+ 1,1 3 Super+ R M 14x1,25 17,5 16 O Ma S35-4 DCY 1,5 3 Super R M 14x1,25 17,5 16 O Ma DPP 15 V 1,3 21 Platinum R M 14x1,25 17,5 16 O SAE Double platinum DPP 22 U 1,0 21 Platinum R M 14x1,25 17,5 16 O SAE Double platinum DPV 1,3 1 Platinum+ R M 14x1,25 17,5 16 O SAE DPX 1,1 1 Platinum+ R M 14x1,25 17,5 16 O Ma P16-4 LPX 1,1 1 Platinum+ R M 14x1,25 17,5 16 O Ma MEV 1,3 3 Ni-Yt R M 14x1,25 25 16 O SAE MPV 1,3 1 Platinum+ R M 14x1,25 25 16 O SAE P18-4HR 9 AC 0,9 4 Super R M 14x1,25 11,2 16 O Ma ACY 1,5 4 Super R M 14x1,25 11,2 16 O Ma APX+ 1,1 2 Platinum+ R M 14x1,25 11,2 16 O Ma BC+ 0,8 3 Super+ R M 14x1,25 11,2 16 O Ma S25-4 Ni-Yt centre electrode S25-6 Ni-Yt centre electrode BCY 1,5 3 Super R M 14x1,25 11,2 16 O Ma Ni-Yt centre electrode BCY+ 1,5 3 Super+ R M 14x1,25 11,2 16 O Ma BCZ 2,0 3 Super R M 14x1,25 11,2 16 O Ma BP 0,9 1 Platinum+ R M 14x1,25 11,2 16 O Ma BPX 1,1 1 Platinum+ R M 14x1,25 11,2 16 O Ma BPY 1,5 1 Platinum+ R M 14x1,25 11,2 16 O Ma P17-4 BPZ 2,0 1 Platinum+ R M 14x1,25 11,2 16 O Ma DC 0,9 3 Super R M 14x1,25 17,5 16 O Ma DCX 1,1 3 Super R M 14x1,25 17,5 16 O Ma DCY+ 1,5 3 Super R M 14x1,25 17,5 16 O Ma S26-6 Ni-Yt centre electrode DPX 1,1 1 Platinum+ R M 14x1,25 17,5 16 O Ma DPY 1,5 1 Platinum+ R M 14x1,25 17,5 16 O Ma P12-6 HC 0 1,3 10 Super R M 14x1,25 17,5 16 O Ma HP 0 1,3 18 Platinum R M 14x1,25 17,5 16 O Ma Special platinum electrode LCX 1,1 19 Super R M 14x1,25 17,5 16 O Ma LCY 1,5 19 Super R M 14x1,25 17,5 16 O Ma

    HSHS 5 E 0,5 4 M 14x1,25 9,5 16 O Ma Chrome-nickel centre electrode; for low-output enginesHS 6 E 0,5 4 M 14x1,25 9,5 16 O Ma Chrome-nickel centre electrode; for low-output enginesHS 7 E 0,5 4 M 14x1,25 9,5 16 O Ma Chrome-nickel centre electrode; for low-output engines F 0,7 3 M 14x1,25 9,5 16 O Ma Chrome-nickel centre electrode; for low-output enginesHS 8 E 0,5 4 M 14x1,25 9,5 16 O Ma Chrome-nickel centre electrode; for low-output engines

    SparkPlugprogram|A

    MM 4 AC 0,5 4 Super M 18x1,5 12,7 26 O Mb M 5 AC 0,5 4 Super M 18x1,5 12,7 26 O Mb M 7 AC 0,5 4 Super M 18x1,5 12,7 26 O Mb 0,7 4 Super M 18x1,5 12,7 26 O Ma M 8 AC 0,5 4 Super M 18x1,5 12,7 26 O Mb M 10 AC 0,5 4 Super M 18x1,5 12,7 26 O Mb AC 0 0,7 4 Super M 18x1,5 12,7 20,8 O Ma M 12 B 0,7 3 Super M 18x1,5 12,7 26 O Ma

    HR9 LPP22Y 1,5 19 Platinum R M 14x1,25 17,5 16 O SAE Double platinum LPX 1,1 1 Platinum+ R M 14x1,25 17,5 16 O MaHR10 AC 0,9 4 Super R M 14x1,25 11,2 16 O Ma ACY 1,5 4 Super R M 14x1,25 11,2 16 O Ma BC 0,9 3 Super R M 14x1,25 11,2 16 O Ma BCX 1,1 3 Super R M 14x1,25 11,2 16 O Ma BCY 1,5 3 Super R M 14x1,25 11,2 16 O Ma BCZ 2,0 3 Super R M 14x1,25 11,2 16 O Ma DCX 1,1 3 Super R M 14x1,25 17,5 16 O Ma HC 0 1,4 10 Super R M 14x1,25 17,5 16 O Ma

    mm NN

    1) )

    mm NN

    1) )

    U U 3 CC 0,7 4 Super M 10x1 19 16 O Ma U 4 AC 0,6 4 Super M 10x1 12,7 16 O M4 U 5 AC 0,6 4 Super M 10x1 12,7 16 O M4 U 6 AC 0,7 4 Super M 10x1 12,7 16 O Ma

    UH UH 5 CC 0,8 4 Super M 10x1 19 16 O Ma

    UR UR 2 CC 0,7 4 Super R M 10x1 19 16 O Ma UR 3 AC 0,7 4 Super R M 10x1 12,7 16 O Mb AS 0,7 6 Silver R M 10x1 12,7 16 O Ma CC 0,7 4 Super R M 10x1 19 16 O Ma UR 4 AC 0,6 4 Super R M 10x1 12,7 16 O Mb AS 0,7 6 Silver R M 10x1 12,7 16 O MbUR 5 AC 0,6 4 Super R M 10x1 12,7 16 O MbUR 6 AC 0,7 4 Super R M 10x1 12,7 16 O Ma DE 0,6 3 Super R M 10x1 19 16 O Ma

    Spark Plug program Spark Plug program

    ) )

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  • BoschAutomotiveAftermarket 2008 2008 BoschAutomotiveAftermarket

    A6 |Technicalinformation

    USR USR 7 AC 0,5 4 Super R M 10x1 12,7 16 O SAE

    VR VR 8 SE 0,9 19 Ni-Yt R M 12x1,25 26,5 14 O SAE

    W W 06 CS 0,6 6 Silver M 14x1,25 19 20,8 O MaW 07 AS 0,6 6 Silver M 14x1,25 12,7 20,8 O Ma CS 0,6 6 Silver M 14x1,25 19 20,8 O MaW 08 AS 0,6 6 Silver M 14x1,25 12,7 20,8 O Ma CS 0,6 6 Silver M 14x1,25 19 20,8 O MaW 2 AC 0,5 4 Super M 14x1,25 12,7 20,8 O Mb AS 0,6 6 Silver M 14x1,25 12,7 20,8 O Ma CC 0,5 4 Super M 14x1,25 19 20,8 O Mb CS 0,6 6 Silver M 14x1,25 19 20,8 O MaW 3 AC 0,5 4 Super M 14x1,25 12,7 20,8 O Ma 0,7 4 Super M 14x1,25 12,7 20,8 O Mb AS 0,6 6 Silver M 14x1,25 12,7 20,8 O Ma CC 0,5 4 Super M 14x1,25 19 20,8 O Ma CS 0,6 6 Silver M 14x1,25 19 20,8 O Ma DDP 0 R 0,3 Platinum R M 14x1,25 19 20,8 O Ma For stationary gas engines DP 0 0,6 7 Platinum M 14x1,25 19 20,8 O Mb Special platinum electrodeW 4 AC 0,5 4 Super M 14x1,25 12,7 20,8 O Mb 0,7 4 Super M 14x1,25 12,7 20,8 O Mb AS 0,6 6 Silver M 14x1,25 12,7 20,8 O Ma BC 0,6 3 Super M 14x1,25 12,7 20,8 O Ma CC 0,5 4 Super M 14x1,25 19 20,8 O MaW 4 CC 0,7 4 Super M 14x1,25 19 20,8 O Mb CS 0,6 6 Silver M 14x1,25 19 20,8 O Ma DP 0 0,6 7 Platinum M 14x1,25 19 20,8 O Mb Special platinum electrode 0,8 7 Platinum M 14x1,25 19 20,8 O Mb Special platinum electrodeW 5 AC 0,5 4 Super M 14x1,25 12,7 20,8 O Ma 0,7 4 Super M 14x1,25 12,7 20,8 O Mb AS 0,6 6 Silver M 14x1,25 12,7 20,8 O Ma CC 0,5 4 Super M 14x1,25 19 20,8 O Ma 0,7 4 Super M 14x1,25 19 20,8 O Mb DP 0 0,6 7 Platinum M 14x1,25 19 20,8 O Mb Special platinum electrode EC 0,7 4 Super M 14x1,25 9,5 20,8 O MaW 6 AC 0,7 4 Super M 14x1,25 12,7 20,8 O Ma CC 0,7 4 Super M 14x1,25 19 20,8 O MaW 7 AC 0,5 4 Super M 14x1,25 12,7 20,8 O Ma 0,6 4 Super M 14x1,25 12,7 20,8 O Mb DSR 0,7 3 Silver R M 14x1,25 19 20,8 O Mb EC 0,7 4 Super M 14x1,25 9,5 20,8 O Ma FC 0,9 3 Super M 14x1,25 9,5 20,8 O MaW 8 AC 0,5 4 Super M 14x1,25 12,7 20,8 O Ma 0,6 4 Super M 14x1,25 12,7 20,8 O Mb CC 0,7 4 Super M 14x1,25 12,7 20,8 O Mb EC 0,7 4 Super M 14x1,25 9,5 20,8 O Mb

    SparkPlugprogram|A7

    mm NN

    WC WC 7 A 0,5 4 R M 14x1,25 12,7 20,8 O 5/8 Shielded, waterproof for ignition cable 7 mm connection 5/8-24UNEF2A Chrome-nickel centre electrodes D 0,7 3 R M 14x1,25 19 20,8 O 5/8 Shielded, waterproof; for ignition cable 7 mm connection 5/8-24UNEF-2A, Chrome-nickel centre electrodesWC 8 DC 0,7 3 Super R M 14x1,25 19 20,8 O 5/8 Shielded, waterproof; for ignition cable 7 mm connection 5/8-24UNEF-2A, Chrome-nickel centre electrodes

    W 9 AC 0,7 4 Super M 14x1,25 12,7 20,8 O Mb CC 0,7 4 Super M 14x1,25 19 20,8 O Mb EC 0,9 4 Super M 14x1,25 9,5 20,8 O Ma EC 0 0,7 4 Super M 14x1,25 9,5 20,8 O Ma LDCR 0,8 12 Super R M 14x1,25 19 20,8 O MbW 10 AC 0,5 4 Super M 14x1,25 12,7 20,8 O Ma 0,7 4 Super M 14x1,25 12,7 20,8 O Mb CC 0,7 4 Super M 14x1,25 19 20,8 O Mb DC 0,7 3 Super M 14x1,25 19 20,8 O Ma EC 0,7 4 Super M 14x1,25 9,5 20,8 O Ma LCX 1,1 19 Super M 14x1,25 19 20,8 O Ma W 11 E 0 0,7 4 M 14x1,25 9,5 20,8 O Ma

    1) )

    mm NN

    1) )

    WeA WEA 1,2 M 14x1,25 12,7 20,8 O Ma

    Wr WR 2 CC 0,5 4 Super R M 14x1,25 19 20,8 O M4 WR 3 AP 0,7 2 Platinum+ R M 14x1,25 12,7 20,8 O Ma CC 0,7 4 Super R M 14x1,25 19 20,8 O Ma CP 0,7 2 Platinum+ R M 14x1,25 19 20,8 O Ma CS 0,6 6 Silver R M 14x1,25 19 20,8 O SAE CTC 1,4 11 Super R M 14x1,25 19 20,8 O SAE WR 4 AC 0,7 4 Super R M 14x1,25 12,7 20,8 O Ma AP 0,7 2 Platinum+ R M 14x1,25 12,7 20,8 O Ma CC 0,7 4 Super R M 14x1,25 19 20,8 O Ma CP 0,6 2 Platinum+ R M 14x1,25 19 20,8 O Ma DP 0 0,6 7 Platinum R M 14x1,25 19 20,8 O Ma Special platinum electrodeWR 5 AC 0,5 4 Super R M 14x1,25 12,7 20,8 O Mb AP 0,6 2 Platinum+ R M 14x1,25 12,7 20,8 O Ma BC 0,7 3 Super R M 14x1,25 12,7 20,8 O Ma CC 0,8 4 Super R M 14x1,25 19 20,8 O Mb CP 0,7 2 Platinum+ R M 14x1,25 19 20,8 O Ma DC+ 0,8 3 Super+ R M 14x1,25 19 20,8 O Ma Ni-Yt centre electrode DP 0,6 1 Platinum+ R M 14x1,25 19 20,8 O Mb DS 0,3 3 Silver R M 14x1,25 19 20,8 O M4 0,8 3 Silver R M 14x1,25 19 20,8 O Mb

    Spark Plug program Spark Plug program

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  • BoschAutomotiveAftermarket 2008 2008 BoschAutomotiveAftermarket

    A8 |Technicalinformation

    WR 6 AC 0,7 4 Super R M 14x1,25 12,7 20,8 O Ma BC 0,7 3 Super R M 14x1,25 12,7 20,8 O Ma CC 0,7 4 Super R M 14x1,25 19 20,8 O Ma DC+ 0,8 3 Super+ R M 14x1,25 19 20,8 O Ma Ni-Yt centre electrode DC 2 0,9 3 Super R M 14x1,25 19 20,8 O Ma Copper core in centre & ground electrode DCX 1,1 3 Super R M 14x1,25 19 20,8 O Ma DP 0,7 1 Platinum+ R M 14x1,25 19 20,8 O Mb DP 0 0,6 7 Platinum R M 14x1,25 19 20,8 O SAE Special platinum electrode DS 0,5 3 Silver R M 14x1,25 19 20,8 O Mb WR 7 AP 0,6 2 Platinum+ R M 14x1,25 12,7 20,8 O Ma BC+ 0,8 3 Super+ R M 14x1,25 12,7 20,8 O Ma Ni-Yt centre electrode BP 0,7 1 Platinum+ R M 14x1,25 12,7 20,8 O Mb CC 0,8 4 Super R M 14x1,25 19 20,8 O Mb CCX 1,1 4 Super R M 14x1,25 19 20,8 O Ma CP 0,7 2 Platinum+ R M 14x1,25 19 20,8 O Mb CPX 0,7 2 Platinum+ R M 14x1,25 19 20,8 O Mb DC+ 0,8 3 Super+ R M 14x1,25 19 20,8 O Ma Ni-Yt centre electrode DCX+ 1,1 3 Super+ R M 14x1,25 19 20,8 O Ma Ni-Yt centre electrode DP 0,8 1 Platinum+ R M 14x1,25 19 20,8 O Mb DPX 1,1 1 Platinum+ R M 14x1,25 19 20,8 O Ma DS 0,7 3 Silver R M 14x1,25 19 20,8 O Mb 0,9 3 Silver R M 14x1,25 19 20,8 O Ma EC 0,7 4 Super R M 14x1,25 9,5 20,8 O Ma LC 0,7 19 Super R M 14x1,25 19 20,8 O Ma LTC+ 1,0 22 Super+ R M 14x1,25 19 20,8 O Ma Ni-Yt centre electrode WR 78 24 Super4 R M 14x1,25 19 20,8 O Ma WR 8 AC 0,6 4 Super R M 14x1,25 12,7 20,8 O Ma AP 0,8 2 Platinum R M 14x1,25 12,7 20,8 O Ma AP 0,8 2 Platinum+ R M 14x1,25 12,7 20,8 O Ma BC+ 0,8 3 Super+ R M 14x1,25 12,7 20,8 O Ma Ni-Yt centre electrode BP 0,7 1 Platinum+ R M 14x1,25 12,7 20,8 O Ma CC 0,8 4 Super R M 14x1,25 19 20,8 O Mb CP 0,9 2 Platinum+ R M 14x1,25 19 20,8 O Ma DC+ 0,8 3 Super+ R M 14x1,25 19 20,8 O Ma Ni-Yt centre electrode DCX+ 1,1 3 Super+ R M 14x1,25 19 20,8 O Ma Ni-Yt centre electrode DP 0,9 1 Platinum+ R M 14x1,25 19 20,8 O Mb DPX 1,1 1 Platinum+ R M 14x1,25 19 20,8 O Ma DS 0,8 3 Silver R M 14x1,25 19 20,8 O Mb EC 0,9 4 Super R M 14x1,25 9,5 20,8 O Ma FC 0,9 3 Super R M 14x1,25 9,5 20,8 O Ma LP 0,7 1 Platinum+ R M 14x1,25 19 20,8 O Ma LC 0,8 19 Super R M 14x1,25 19 20,8 O Ma LC+ 0,8 19 Super+ R M 14x1,25 19 20,8 O Ma LTC+ 1,0 22 Super+ R M 14x1,25 19 20,8 O Mb Ni-Yt centre electrode WR 9 CC 0,9 4 Super R M 14x1,25 19 20,8 O Mb DC+ 0,8 3 Super+ R M 14x1,25 19 20,8 O Ma Ni-Yt centre electrode DCX+ 1,1 3 Super+ R M 14x1,25 19 20,8 O Ma Ni-Yt centre electrode DCY 1,5 3 Super R M 14x1,25 19 20,8 O Ma DP 0,8 1 Platinum+ R M 14x1,25 19 20,8 O Ma

    SparkPlugprogram|A9

    Wr

    mm NN

    mm NN

    WR 9 DPX 1,1 1 Platinum+ R M 14x1,25 19 20,8 O Ma DS 0,7 3 Silver R M 14x1,25 19 20,8 O Mb EC 0,9 4 Super R M 14x1,25 9,5 20,8 O Ma EC 3 0,7 4 Super R M 14x1,25 11,1 20,8 O Ma FC 0,9 3 Super R M 14x1,25 9,5 20,8 O Ma FP 0,9 1 Platinum+ R M 14x1,25 9,5 20,8 O Ma FPY 1,5 1 Platinum+ R M 14x1,25 9,5 20,8 O Ma FPZ 2,0 1 Platinum+ R M 14x1,25 9,5 20,8 O Ma HC 0,9 8 Super R M 14x1,25 19 20,8 O Mb LCX+ 1,1 19 Super+ R M 14x1,25 19 20,8 O Ma Ni-Yt centre electrode LE 0,8 19 Ni-Yt R M 14x1,25 19 20,8 O Ma LEV+ 1,3 19 Super+ R M 14x1,25 19 20,8 O Ma Ni-Yt centre electrode LP 0,9 1 Platinum+ R M 14x1,25 19 20,8 O Mb LPV 1,3 17 Platinum+ R M 14x1,25 19 20,8 O Mb LS 0,7 19 Silver R M 14x1,25 19 20,8 O Mb WR 91 24 Super4 R M 14x1,25 19 20,8 O Ma WR 10 AC 0,5 4 Super R M 14x1,25 12,7 20,8 O M4 BC 0,8 3 Super R M 14x1,25 12,7 20,8 O Ma DC 0,8 3 Super R M 14x1,25 12,7 20,8 O Ma DCX 1,1 3 Super R M 14x1,25 19 20,8 O Ma FC 0,5 3 Super R M 14x1,25 9,5 20,8 O Ma 0,9 3 Super R M 14x1,25 9,5 20,8 O Ma FCY 1,5 3 Super R M 14x1,25 9,5 20,8 O Ma FCZ 2,0 3 Super R M 14x1,25 9,5 20,8 O Ma LC 0,9 19 Super R M 14x1,25 19 20,8 O SAE LCV 1,3 19 Super R M 14x1,25 19 20,8 O SAE WR 11 E 0 0,8 4 R M 14x1,25 9,5 20,8 O Ma Chrome-nickel centre electrode; for low-output engines F 0,5 3 R M 14x1,25 9,5 20,8 O Ma Chrome-nickel centre electrode; for low-output enginesWR 12 EC 0,7 4 Super R M 14x1,25 9,5 20,8 O Ma

    1) ) )1) ) )

    WS WS 5 E 0,5 4 M 14x1,25 9,5 19 O Ma Chrome-nickel centre electrode; for low-output enginesWS 5 F 0,5 3 M 14x1,25 9,5 19 O Ma Chrome-nickel centre electrode; for low-output enginesWS 6 E 0,5 4 M 14x1,25 9,5 19 O Ma Chrome-nickel centre electrode; for low-output enginesWS 6 F 0,5 3 M 14x1,25 9,5 19 O Ma Chrome-nickel centre electrode; for low-output enginesWS 7 E 0,5 4 M 14x1,25 9,5 19 O Ma Chrome-nickel centre electrode; for low-output engines F 0,5 3 M 14x1,25 9,5 19 O Ma Chrome-nickel centre electrode; for low-output enginesWS 8 F 0,5 3 M 14x1,25 9,5 19 O Ma Chrome-nickel centre electrode; for low-output enginesWS 9 EC 0,6 4 Super M 14x1,25 9,5 19 O MaWS 12 E 0,7 4 M 14x1,25 9,5 19 O Ma Chrome-nickel centre electrode; for low-output engines

    Spark Plug program Spark Plug program

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  • BoschAutomotiveAftermarket 2008 2008 BoschAutomotiveAftermarket

    A0 |Technicalinformation Technicalinformation|A1

    mm NN

    XrXR 2 CS 0,7 6 Silver R M 12x1,25 19 17,5 O SAEXR 4 CS 0,7 6 Silver R M 12x1,25 19 17,5 O MbXR 5 CC 0,7 4 Super R M 12x1,25 19 17,5 O Ma DC 0,6 3 Super R M 12x1,25 19 17,5 O SAE 0,9 3 Super R M 12x1,25 19 17,5 O MaXR 6 CC 0,7 4 Super R M 12x1,25 19 17,5 O MaXR 7 CC 0,7 4 Super R M 12x1,25 19 17,5 O Ma DC 0,9 3 Super R M 12x1,25 19 17,5 O Ma LDC 0,8 12 Super R M 12x1,25 19 17,5 O SAEXR 8 DC 0,9 3 Super R M 12x1,25 19 17,5 O Mb

    YY 5 DDC 0,8 12 Super M 12x1,25 19 16 O SONY 6 DC 0,6 3 Super M 12x1,25 19 16 O SAE

    YrYR 6 LDE 0,8 12 Ni-Yt R M 12x1,25 19 16 O SAEYR 7 DE 0,9 3 Ni-Yt R M 12x1,25 19 16 O SAE LPP332W 0,9 30 Platinum R M 12x1,25 19 16 O SAE Double Platinum

    ZrZR 8 TPP 15 1,0 29 Platinum R M 12x1,25 26,5 14 O SAE

    WSr WSR 5 F 0,5 3 R M 14x1,25 9,5 19 O SAE Chrome-nickel centre electrode; for low-output enginesWSR 6 E 0,5 4 R M 14x1,25 9,5 19 O Ma Chrome-nickel centre electrode; for low-output engines F 0,5 3 R M 14x1,25 9,5 19 O Ma Chrome-nickel centre electrode; for low-output enginesWSR 7 F 0,5 3 R M 14x1,25 9,5 19 O Ma Chrome-nickel centre electrode; for low-output enginesWSR 8 E 0,5 4 R M 14x1,25 9,5 19 O Ma Chrome-nickel centre electrode; for low-output engines F 0,5 3 R M 14x1,25 9,5 19 O Ma Chrome-nickel centre electrode; for low-output enginesWSR 9 EC 0,6 4 Super R M 14x1,25 9,5 19 O Ma

    1) ) )

    XX 4 CC 0,7 4 Super M 12x1,25 19 17,5 O Ma DC 0,9 3 Super M 12x1,25 19 17,5 O MaX 5 CC 0,7 4 Super M 12x1,25 19 17,5 O Ma DC 0,6 3 Super M 12x1,25 19 17,5 O M4 0,7 3 Super M 12x1,25 19 17,5 O Ma DTC 0,8 11 Super M 12x1,25 19 17,5 O SAE

    Correct installation of spark plugs with torque wrench :

    Tighteningtorques(N-m)10Nm=1kpm

    Note : Thetighteningtorqueslistedapplytodry,nongreasedandnonoiledthreads.

    1incastiron2inlightalloy

    Correct installation of spark plugs without torque wrench : Screwinsparkplugbyhanduntilitisseatedinthecylinderhead.Newsparkplugswithflatseatarethengivenafurtherapprox.90turnwithasparkplugwrench.Thefigureforsparkplugswithaconicalseatandusedsparkplugswithaflatseatisapprox.15.

    Spark plug terminal nuts : EnginesmaybefittedwithsparkplugsofadifferentlengthtoBoschsparkplugs.

    1.Screwoutoldsparkplugs.

    2.ComparetonewBoschsparkplugs.

    3.IftheexchangedsparkplugislongerthantheBoschsparkplug,replacethescrewed-onterminalnutAwiththelongerterminalnutBprovided.

    1 2M 10 x1 10 ... 15 10 ... 15M 12 x1.25 15 ... 25 15 ... 20M 14 x1.25 20 ... 25 15 ... 20M 14 x1.25 20 ... 40 20 ... 30M 18 x1.5 30 ... 45 20 ... 35

    1 2M 14 x1.25 20 ... 40 10 ... 20M 18 x1.5 30 ... 45 15 ... 23

    Conical seat

    90 15

    10 12,5

    A B

    Particularoperatingconditionsmaymakeitnecessarytouseheatrangesotherthanthoserecommended.Ifplugswiththespecifiedelectrodegaparenotavailable,theelectrodegapmustbeadjusted.ItisadvisabletousetheBoschsparkpluggaugeforthispurpose.

    Note : Insofarastheywerenotreceivedfromthemotorvehicleorenginemanufacturer,thesparkplugrecommendationshavebeendrawnupbyBosch.Thesparkplugsrecommendedapplytostandardoperatingconditionsforseriesmodels,howevernottoracing,specialandhighperformanceversions,unlesssuchmodelsarespecificallylisted.

    Flat seat

    Spark Plug program Installation procedure

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  • BoschAutomotiveAftermarket 2008 2008 BoschAutomotiveAftermarket

    A |TechnicalInformation Technicalinformation|A

    155 114160 118165 121170 125175 129180 132185 136190 140195 143200 147205 151210 154215 158220 162225 165230 169235 173240 177245 180250 184255 188260 191265 195270 199275 202

    30 2235 2640 2945 3350 3755 4060 4465 4870 5175 5580 5985 6390 6695 70100 74105 77110 81115 85120 88125 92130 96135 99140 103145 107150 110

    20 2725 3430 4135 4840 5545 6150 6855 7560 8265 8870 9575 10280 10985 11590 12295 129100 136105 143110 150115 156120 163125 170130 177135 184140 190

    145 197150 204155 211160 218165 224170 231175 238180 245185 252190 258195 265200 272205 279210 285215 292220 299225 306230 313235 320240 326245 333250 340255 347260 354265 360

    Conversion Table HP kW

    HP kW HP kW kW HP kW HP

    1kW = 1.360HP 1hp = 0.736Kw

    Electrode Gap

    Specified electrode gap

    Ifsparkplugswiththespecifiedelectrodegaparenotavailable,theelectrodemustbeadjusted.WerecommendthatyouusetheBoschsparkpluggapgaugetodothis.

    lPG

    WhenoperatingonLPGGAS,theinternalcombustionpressuresandtemperaturesarehigher,thisresultsinahighervoltagerequiredforionisation.(thesparktojumptheelectrodegap.)Witholdercontactignitionsystems,areductioninthesparkpluggapcompensatesforthishighervoltagerequirement.Gasoperationalsocauseslessdepositsandfouling,sotheheatrangeselectioncanbeonerangecolderthanthepetrolplug.

    ThecorrectsparkplugwilldependonwhetherthevehicleisruncompletelyonLPGorisdualfuel.Specialattentionshouldbepaidtooldercontactignitionsystems(asfollows).WhereLPGisnotspecifiedintheapplicationsection,followtheguidelinesbelow:

    InhighenergyignitionsystemstherecommendationgenerallyremainsunchangedbetweenLPGandPetrol.HoweveryourdrivingconditionsandLPGPetrolratiomayaffectthis.

    lPG Only (retrofit) lead Replacement Fuel

    Inoldercarstheelectrodegapneedstobeset0.1-0.2mmsmallerandtheheatrangeshouldbeonerangecolder.Misfireduetocarbonfoulingisunlikelyandthecolderplugshouldincreaseservicelife.

    Eg:WR8DC+0.8mm(petrol)toWR7DC+0.7mm(LPG).

    LRPhastakentheplaceofleadedpetrolinmostservicestationsaroundAustralia.Thisfuelisburningatalowercombustiontemperatureselfcleaningofthesparkplugmustbeincreasedtoburnoffthechemicalresidue.

    OngoingtestingintheAustralianmarketshowsthatitmaybebeneficialinsomevehiclestouseahigherheatrangesparkplugthancurrentlyrecommended.

    i.e.:FordLaserkA,kB1.3,1.5L1981-1985Currentrecommendation:WR8DC+

    IfproblemsareexperiencedduetoLRP,wesuggesttryingWR9DC+

    IfnoproblemshavebeenexperiencedinthechangefromleadedpetrolLRPorULPthennochangesshouldbemadetotheapplication.Howeverifyouhavefouling(mainlyinstop/startdrivingconditions)thischangemaybeofbenefit.

    ThesameruleappliestoSuper4andPlatinumsparkplugs.Thegapremainsunchangedandshouldbesetasperthecataloguerecommendation.

    Thesparkplugisusuallymeasuredinpetrolmodeandyouwillneedtomakeacompromisebetweentheoperationonbothfueltypes.

    IfyouusemainlyLPGtheelectrodegapshouldbereduced0.1-0.2mmandgooneheatrangecolder.

    Eg:WR8DC+0.8mm(petrol)toWR7DC+0.7mm(LPG).

    Notethatifthisvehiclerunsonpetrolinstop/starttrafficitcanmisfireifusingtheLPGplug.

    Notethatelectrodegapchangesgreaterthan0.2mmshouldbeavoided.DonotregapSuper4s.

    Dual Fuel

    Bosch Tips Bosch Tips

  • BoschAutomotiveAftermarket 2008

    A4 |Notes