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2021 MCLAREN 720S

4.0L V8 Twin Turbo•RWD•AUTOMATIC•gas•turbo
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Dead battery / stuck in Park? Emergency neutral procedure for this 720S →

Factory-verified torque specs157 values, each checked by hand

ABS Module Bolts11.8 lb-ft16 Nm
ABS Sensor BoltDo not overtighten5.9 lb-ft8 Nm
AC Compressor Bolts18.4 lb-ft25 Nm
AC Line FittingsUse new O-rings, add PAG oil7.4 lb-ft10 Nm
AC Line FittingsUse new O-rings5.9 lb-ft8 Nm
Airbag Module BoltsTorx - disconnect battery and wait 2 minutes3.7 lb-ft5 Nm
Airbag Module BoltsTorx - disconnect battery and wait 2 minutes5.2 lb-ft7 Nm
Alternator Mounting Bolts18.4 lb-ft25 Nm
Axle NutUse new cotter pin or stake nut184.4 lb-ft250 Nm
Axle Nut191.8 lb-ft260 Nm
Ball Joint NutNew cotter pin66.4 lb-ft90 Nm
Battery Cable Nut13.3 lb-ft18 Nm
Battery Hold-Down Bolt4.4 lb-ft6 Nm
Battery Terminal BoltsDo not overtighten - can crack terminal4.4 lb-ft6 Nm
Battery Terminal BoltsDo not overtighten9.4 lb-ft12.8 Nm
Bleeder Screw11.8 lb-ft16 Nm
Bleeder ScrewDo not overtighten12.5 lb-ft17 Nm
Boost Sensor7.4 lb-ft10 Nm
Brake Hose Banjo BoltNew copper washers31 lb-ft42 Nm
Brake Line Banjo BoltUse new copper washers31 lb-ft42 Nm
Brake Line FittingsUse flare nut wrench12.5 lb-ft17 Nm
Brake Line FittingsUse flare nut wrench11.1 lb-ft15 Nm
Brake Rotor Set Screw7.4 lb-ft10 Nm
Bumper Cover Bolts3.3 lb-ft4.5 Nm
Bumper Cover Bolts4.4 lb-ft6 Nm
Caliper Bracket BoltsThreadlocker recommended68.6 lb-ft93 Nm
Caliper Bracket Bolts - FrontThreadlocker recommended | ⚠️ VERIFY SEQUENCE WITH SERVICE MANUAL68.6 lb-ft93 Nm
Caliper Mounting Bolts68.6 lb-ft93 Nm
Caliper Mounting Bolts44.3 lb-ft60 Nm
Cam Phaser BoltApply threadlocker, hold cam stationary36.9 lb-ft50 Nm
Camshaft Bearing Cap BoltsTighten in sequence, 3 passes7.4 lb-ft10 Nm
Camshaft Cap BoltsTighten in sequence from center outward, multiple passes7.4 lb-ft10 Nm
Camshaft Position Sensor7.4 lb-ft10 Nm
Camshaft Sprocket BoltsHold cam with wrench on hex36.9 lb-ft50 Nm
Compressor Bolts18.4 lb-ft25 Nm
Condenser Mounting Bolts3 lb-ft4 Nm
Console Screws2.2 lb-ft3 Nm
Control Arm BoltsTorque with vehicle weight on wheels42 lb-ft57 Nm
Coolant Temperature SensorUse thread sealant14.8 lb-ft20 Nm
Crankshaft Position Sensor7.4 lb-ft10 Nm
Crankshaft Pulley BoltOften TTY - check spec, may require impact18.4 lb-ft25 Nm
Crossmember Bolt55.3 lb-ft75 Nm
CV Axle Nut191.8 lb-ft260 Nm
Cylinder Head BoltsTTY - tighten in sequence plus angle33.2 lb-ft45 Nm
Cylinder Head Bolts - Step 1Always use new TTY bolts22.1 lb-ft30 Nm
Cylinder Head Bolts - Step 2Tighten in sequence33.2 lb-ft45 Nm
Cylinder Head Bolts - Step 3Plus 90 degrees33.2 lb-ft45 Nm
Differential Cover Bolts36.9 lb-ft50 Nm
Door Hinge Bolts51.6 lb-ft70 Nm
Door Panel Screws4.4 lb-ft6 Nm
Drain PlugNew washer36.9 lb-ft50 Nm
Engine Mount-to-Block Bolts73.8 lb-ft100 Nm
Engine Mount-to-Frame Bolts73.8 lb-ft100 Nm
Exhaust Clamps10.3 lb-ft14 Nm
Exhaust Flange BoltApply anti-seize25.8 lb-ft35 Nm
Exhaust Manifold NutsApply anti-seize, work hot-to-cold25.8 lb-ft35 Nm
Expansion Valve5.9 lb-ft8 Nm
Fan Motor Bolts3 lb-ft4 Nm
Fan Shroud Bolts3 lb-ft4 Nm
Fender Bolts3.7 lb-ft5 Nm
Fender Liner Screws2.2 lb-ft3 Nm
Fill Plug36.9 lb-ft50 Nm
Filler Neck Bolts3.7 lb-ft5 Nm
Filler Neck Clamp5.9 lb-ft8 Nm
Flywheel BoltsOften TTY, tighten in star pattern66.4 lb-ft90 Nm
Fuel Rail Bolts7.4 lb-ft10 Nm
Grille Mounting Screws2.2 lb-ft3 Nm
Guide Bolts20.7 lb-ft28 Nm
Hanger Bolts5.9 lb-ft8 Nm
Hanger Bracket Bolts5.9 lb-ft8 Nm
Heat Shield Bolts7.4 lb-ft10 Nm
Hood Hinge Bolts5.9 lb-ft8 Nm
Hood Latch Bolts3.7 lb-ft5 Nm
Hub Bolts51.6 lb-ft70 Nm
Hub Bolts44.3 lb-ft60 Nm
Hub NutIf removed191.8 lb-ft260 Nm
Ignition Coil Bolt4.4 lb-ft6 Nm
Intake Manifold Bolt7.4 lb-ft10 Nm
Knock SensorTorque critical for function14.8 lb-ft20 Nm
Linkage Pivot Nuts17.7 lb-ft24 Nm
Lower Ball Joint NutNew cotter pin66.4 lb-ft90 Nm
Lower Control Arm BoltsTorque at ride height42 lb-ft57 Nm
MAF Sensor Screws2.2 lb-ft3 Nm
Main Bearing Cap BoltsTTY - tighten in sequence plus angle40.6 lb-ft55 Nm
MAP Sensor Screws7.4 lb-ft10 Nm
Module Mounting Bolts4.4 lb-ft6 Nm
Module Mounting Bolts5.9 lb-ft8 Nm
Module Mounting Bolts3.7 lb-ft5 Nm
Muffler Clamps10.3 lb-ft14 Nm
O2 SensorApply anti-seize to threads only36.9 lb-ft50 Nm
Oil Drain PlugUse new crush washer17.7 lb-ft24 Nm
Oil Feed LineUse new crush washers17.7 lb-ft24 Nm
Oil Filter Housing CapFor cartridge-type filters18.4 lb-ft25 Nm
Oil Level Sensor28 lb-ft38 Nm
Oil Pressure SensorUse thread sealant14.8 lb-ft20 Nm
Oil Pump Bolts7.4 lb-ft10 Nm
Oil Return Line7.4 lb-ft10 Nm
Pinch Bolt⚠️ VERIFY SEQUENCE WITH SERVICE MANUAL16.2 lb-ft22 Nm
Power Steering Line FittingsUse new O-rings18.4 lb-ft25 Nm
Power Steering Pump Bolts6.6 lb-ft9 Nm
Pump Mounting Bolts6.6 lb-ft9 Nm
Radiator Mounting BoltDo not overtighten plastic mounts3 lb-ft4 Nm
Receiver Drier Bolts5.9 lb-ft8 Nm
Reservoir Mounting Bolts3.7 lb-ft5 Nm
Reservoir Mounting Bolts5.9 lb-ft8 Nm
Rocker Arm BoltsTighten with cam lobe pointing away7.4 lb-ft10 Nm
Rocker Arm Shaft BoltsTighten evenly in sequence7.4 lb-ft10 Nm
Seat Mounting BoltsSafety critical18.4 lb-ft25 Nm
Seat Track Bolts14.8 lb-ft20 Nm
Shock Lower Bolt42 lb-ft57 Nm
Spark PlugGap before install13.3 lb-ft18 Nm
Spark Plugs - Aluminum HeadApply anti-seize to threads13.3 lb-ft18 Nm
Spark Plugs — Aluminum HeadApply anti-seize to threads13.3 lb-ft18 Nm
Starter Mounting Bolt22.1 lb-ft30 Nm
Starter Solenoid NutFor B+ cable5.2 lb-ft7 Nm
Steering Column Bolts⚠️ VERIFY SEQUENCE WITH SERVICE MANUAL14.8 lb-ft20 Nm
Steering Rack Bolts31.7 lb-ft43 Nm
Steering Wheel Nut59 lb-ft80 Nm
Strut Bolts42 lb-ft57 Nm
Strut Top Mount Nuts33.2 lb-ft45 Nm
Strut Tower Nuts33.2 lb-ft45 Nm
Sway Bar Bracket Bolts14.8 lb-ft20 Nm
Sway Bar End Link Nuts44.3 lb-ft60 Nm
Sway Bar Link NutsHold shaft with Allen key44.3 lb-ft60 Nm
Tail Light Bolts2.2 lb-ft3 Nm
Tank Strap Bolts6.6 lb-ft9 Nm
Thermostat Housing Bolt7.4 lb-ft10 Nm
Throttle Body Bolts7.4 lb-ft10 Nm
Tie Rod End Castle NutUse new cotter pin42.8 lb-ft58 Nm
Tie Rod End NutNew cotter pin42.8 lb-ft58 Nm
Tie Rod Lock NutAfter alignment50.5 lb-ft68.5 Nm
Tie Rod Nut50.5 lb-ft68.5 Nm
Tie Rod Nut42.8 lb-ft58 Nm
Timing Chain Guide BoltsReplace if worn19.9 lb-ft27 Nm
Timing Chain Guide BoltsReplace if worn7.4 lb-ft10 Nm
Timing Chain Idler Sprocket81.1 lb-ft110 Nm
Timing Chain Tensioner BoltInstall with pin/clip to compress19.9 lb-ft27 Nm
Timing Chain Tensioner BoltInstall with pin/clip to compress7.4 lb-ft10 Nm
Timing Cover BoltTighten in sequence7.4 lb-ft10 Nm
Timing Cover Bolts - 6mmTighten in sequence7.4 lb-ft10 Nm
Timing Cover Bolts - 8mmTighten in sequence7.4 lb-ft10 Nm
Transmission Cooler LinesIf equipped, use new washers5.9 lb-ft8 Nm
Transmission Drain PlugUse new crush washer if equipped36.9 lb-ft50 Nm
Transmission Filter BoltsIf equipped with bolted filter7.4 lb-ft10 Nm
Transmission Mount Bolts99.6 lb-ft135 Nm
Transmission-to-Engine Bolts36.9 lb-ft50 Nm
Turbo-to-Downpipe Bolts25.8 lb-ft35 Nm
Upper Ball Joint NutNew cotter pin66.4 lb-ft90 Nm
Upper Control Arm BoltsTorque at ride height42 lb-ft57 Nm
Valve Cover BoltsTighten in sequence7.4 lb-ft10 Nm
Visor Mounting Screws4.4 lb-ft6 Nm
VVT Solenoid Bolt4.4 lb-ft6 Nm
Wastegate Actuator Bolts2.2 lb-ft3 Nm
Water Pump BoltsTighten in criss-cross pattern7.4 lb-ft10 Nm
Wheel Bearing Hub Bolts51.6 lb-ft70 Nm
Wheel Bearing Hub BoltsApply threadlocker if specified44.3 lb-ft60 Nm
Wheel Lug Nuts95.9 lb-ft130 Nm

Common jobs labor hours, estimates

Brake Pads - Front0.5Brake Rotor - Front Single0.5Oil Change0.9Alternator3Starter Solenoid9Water Pump2.8Thermostat4.2Timing Chain54Tire Rotation1Wheel Alignment4Transmission Service6Automatic Transmission Fluid and Filter Change5.5Spark Plugs3.2Ignition Coils - All2.2

Fluids & battery

A/C RefrigerantR-1234yf24.7 oz
Brake FluidDOT 4 low viscosity1.1 qt
CoolantMcLaren-spec OAT coolant7.4 qt
Engine Oil0W-40 full synthetic10.6 qt
Power Steeringelectro-hydraulic PAS fluid1 qt
Rear Differential75W-140 synthetic gear oil2.1 qt
Automatic TransmissionMcLaren SSG DCT fluid7.4 qt
Washer Fluidwindshield washer fluid concentrate1.6 qt
BatteryGroup H8 · AGM850 CCA

Codes, recalls, maintenance

Every job on this vehicle, A to Z 904 pages
100K Servicelabor30K Servicelabor60K Servicelabor90K ServicelaborA/C RefrigerantfluidABS ModulelaborABS ModuletorqueABS PumplaborABS PumptorqueABS Tone RingtorqueABS Tone Ring - FrontlaborABS Tone Ring - RearlaborABS Wheel Speed Sensor - FrontlaborABS Wheel Speed Sensor - FronttorqueABS Wheel Speed Sensor - RearlaborABS Wheel Speed Sensor - ReartorqueAC AccumulatorlaborAC AccumulatortorqueAC Clutch CoillaborAC Clutch CoiltorqueAC CompressorlaborAC CompressortorqueAC Compressor ClutchlaborAC Compressor ClutchtorqueAC Compressor Oil AddlaborAC Compressor Oil AddtorqueAC CondenserlaborAC CondensertorqueAC EvaporatorlaborAC EvaporatortorqueAC Expansion Valve (TXV)laborAC Expansion Valve (TXV)torqueAC High Pressure SwitchlaborAC High Pressure SwitchtorqueAC Hose - High SidelaborAC Hose - High SidetorqueAC Hose - Low SidelaborAC Hose - Low SidetorqueAC Hose AssemblylaborAC Hose AssemblytorqueAC Low Pressure SwitchlaborAC Low Pressure SwitchtorqueAC Orifice TubelaborAC Orifice TubetorqueAC Pressure SensorlaborAC Pressure SensortorqueAC Receiver/DrierlaborAC Receiver/DriertorqueAC RechargelaborAC RechargetorqueAC System DiagnosislaborAir FilterlaborAirbag - DriverlaborAirbag - DrivertorqueAirbag - PassengerlaborAirbag - PassengertorqueAirbag - SidelaborAirbag - SidetorqueAirbag Module/ComputerlaborAirbag Module/ComputertorqueAlternatorlaborAlternatortorqueAlternator BeltlaborAlternator BelttorqueAmplifierlaborAmplifiertorqueAntennalaborAntennatorqueArmrestlaborArmresttorqueAutomatic TransmissionfluidAutomatic Transmission Fluid and Filter ChangelaborAxle Seal - RearlaborAxle Seal - ReartorqueAxle Shaft - RearlaborBackup CameralaborBackup CameratorqueBall Joint - LowerlaborBall Joint - LowertorqueBall Joint - UpperlaborBall Joint - UppertorqueBall Joints - Upper and LowerlaborBall Joints - Upper and LowertorqueBatterylaborBatterytorqueBattery Cable - NegativelaborBattery Cable - NegativetorqueBattery Cable - PositivelaborBattery Cable - PositivetorqueBattery Cables - BothlaborBattery Cables - BothtorqueBattery TerminallaborBattery TerminaltorqueBattery TestlaborBlend Door ActuatorlaborBlend Door ActuatortorqueBlower MotorlaborBlower MotortorqueBlower Motor Control ModulelaborBlower Motor Control ModuletorqueBlower Motor ResistorlaborBlower Motor ResistortorqueBoost Pressure SensorlaborBoost Pressure SensortorqueBrake Bleed - All FourlaborBrake Bleed - All FourtorqueBrake BoosterlaborBrake BoostertorqueBrake Booster Check ValvelaborBrake Booster Check ValvetorqueBrake Caliper - FrontlaborBrake Caliper - FronttorqueBrake Caliper - RearlaborBrake Caliper - ReartorqueBrake Caliper BracketlaborBrake Caliper BrackettorqueBrake Caliper Rebuild - FrontlaborBrake Caliper Rebuild - FronttorqueBrake Caliper Rebuild - RearlaborBrake Caliper Rebuild - ReartorqueBrake Caliper Slide PinslaborBrake Caliper Slide PinstorqueBrake FluidfluidBrake Fluid FlushlaborBrake Fluid FlushtorqueBrake Hose - FrontlaborBrake Hose - FronttorqueBrake Hose - RearlaborBrake Hose - ReartorqueBrake Light SwitchlaborBrake Light SwitchtorqueBrake Line - SinglelaborBrake Line - SingletorqueBrake Lines - Complete SetlaborBrake Lines - Complete SettorqueBrake Master CylinderlaborBrake Master CylindertorqueBrake Master Cylinder RebuildlaborBrake Master Cylinder RebuildtorqueBrake Pads - FrontlaborBrake Pads - FronttorqueBrake Pads - RearlaborBrake Pads - ReartorqueBrake Pads and Rotors - FrontlaborBrake Pads and Rotors - FronttorqueBrake Pads and Rotors - RearlaborBrake Pads and Rotors - ReartorqueBrake Proportioning ValvelaborBrake Proportioning ValvetorqueBrake Rotor - Front SinglelaborBrake Rotor - Front SingletorqueBrake Rotor - Rear SinglelaborBrake Rotor - Rear SingletorqueBrake Rotors - Front PairlaborBrake Rotors - Front PairtorqueBrake Rotors - Rear PairlaborBrake Rotors - Rear PairtorqueBumper Cover - FrontlaborBumper Cover - FronttorqueBumper Cover - RearlaborBumper Cover - ReartorqueBumper Reinforcement - FrontlaborBumper Reinforcement - FronttorqueBumper Reinforcement - RearlaborBumper Reinforcement - ReartorqueCabin Air FilterlaborCabin Air FiltertorqueCamshaft Position SensorlaborCamshaft Position SensortorqueCamshaft R&RlaborCamshaft R&RtorqueCarpetlaborCarpettorqueCatalytic Converter - Direct FitlaborCatalytic Converter - Direct FittorqueCatalytic Converter - UniversallaborCatalytic Converter - UniversaltorqueCenter ConsolelaborCenter ConsoletorqueCharcoal CanisterlaborCharcoal CanistertorqueCharging System TestlaborCheck Engine Light DiagnosislaborClimate Control ModulelaborClimate Control ModuletorqueClock SpringlaborClock SpringtorqueCoil Spring - FrontlaborCoil Spring - FronttorqueCoil Spring - RearlaborCoil Spring - ReartorqueCoil Springs - Front PairlaborCoil Springs - Front PairtorqueCoil Springs - Rear PairlaborCoil Springs - Rear PairtorqueCombination SwitchlaborCombination SwitchtorqueCompression TestlaborConnecting Rod BearingslaborConnecting Rod BearingstorqueControl Arm Bushing - Front LowerlaborControl Arm Bushing - Front LowertorqueControl Arm Bushing - Front UpperlaborControl Arm Bushing - Front UppertorqueControl Arm Bushing - RearlaborControl Arm Bushing - ReartorqueCoolantfluidCoolant Bypass PipelaborCoolant Bypass PipetorqueCoolant FlushlaborCoolant FlushtorqueCoolant ReservoirlaborCoolant ReservoirtorqueCoolant Temperature SensorlaborCoolant Temperature SensortorqueCooling Fan AssemblylaborCooling Fan AssemblytorqueCooling Fan ClutchlaborCooling Fan ClutchtorqueCooling Fan MotorlaborCooling Fan MotortorqueCooling Fan RelaylaborCooling Fan RelaytorqueCooling System Pressure TestlaborCrankshaft Position SensorlaborCrankshaft Position SensortorqueCrankshaft R&RlaborCrankshaft R&RtorqueCV Axle - RearlaborCV Axle - ReartorqueCV Boot - InnerlaborCV Boot - InnertorqueCV Boot - OuterlaborCV Boot - OutertorqueCylinder Head R&RlaborCylinder Head R&RtorqueCylinder Head ResurfacelaborCylinder Head ResurfacetorqueDash PadlaborDash PadtorqueDashboardlaborDashboardtorqueDiagnostic ScanlaborDifferential Cover GasketlaborDifferential Cover GaskettorqueDifferential Fluid Change - RearlaborDifferential Fluid Change - ReartorqueDifferential Pinion SeallaborDifferential Pinion SealtorqueDifferential Rebuild - RearlaborDifferential Rebuild - ReartorqueDifferential ServicelaborDimmer SwitchlaborDimmer SwitchtorqueDoor Check/StoplaborDoor Check/StoptorqueDoor GlasslaborDoor GlasstorqueDoor Handle - ExteriorlaborDoor Handle - ExteriortorqueDoor Handle - InteriorlaborDoor Handle - InteriortorqueDoor HingelaborDoor HingetorqueDoor Lock Actuator - FrontlaborDoor Lock Actuator - FronttorqueDoor Lock Actuator - RearlaborDoor Lock Actuator - ReartorqueDoor PanellaborDoor PaneltorqueDoor ShelllaborDoor ShelltorqueDoor SkinlaborDoor SkintorqueDoor WeatherstriplaborDoor WeatherstriptorqueDownpipelaborDownpipetorqueDrivability DiagnosislaborDriveshaft - RearlaborDriveshaft - ReartorqueDriveshaft Center Support BearinglaborDriveshaft Center Support BearingtorqueEGR TubelaborEGR TubetorqueEGR ValvelaborEGR ValvetorqueElectric Power Steering ModulelaborElectric Power Steering ModuletorqueElectric Power Steering MotorlaborElectric Power Steering MotortorqueElectrical DiagnosislaborElectronic Parking Brake MotorlaborElectronic Parking Brake MotortorqueEmissions InspectionlaborEngine Mount - FrontlaborEngine Mount - FronttorqueEngine Mount - RearlaborEngine Mount - ReartorqueEngine Mount - StrutlaborEngine Mount - Torque AxislaborEngine Mounts - AlllaborEngine Mounts - AlltorqueEngine OilfluidEngine Oil CoolerlaborEngine Oil CoolertorqueEngine R&RlaborEngine R&RtorqueEngine RebuildlaborEngine RebuildtorqueEVAP Purge ValvelaborEVAP Purge ValvetorqueEVAP Vent ValvelaborEVAP Vent ValvetorqueExhaust ClamplaborExhaust ClamptorqueExhaust Gasket - FrontlaborExhaust Gasket - FronttorqueExhaust Gasket - RearlaborExhaust Gasket - ReartorqueExhaust HangerslaborExhaust HangerstorqueExhaust ManifoldlaborExhaust ManifoldtorqueExhaust Manifold GasketlaborExhaust Manifold GaskettorqueExhaust Manifold StudslaborExhaust Manifold StudstorqueExhaust Pipe - Rear SectionlaborExhaust Pipe - Rear SectiontorqueExhaust TiplaborExhaust TiptorqueFan Belt ReplacementlaborFan Belt ReplacementtorqueFenderlaborFendertorqueFender LinerlaborFender LinertorqueFlex PipelaborFlex PipetorqueFlexplatelaborFlexplatetorqueFloor Mat HookslaborFloor Mat HookstorqueFluid Leak DiagnosislaborFog Light AssemblylaborFog Light AssemblytorqueFog Light BulblaborFreeze Plug - SinglelaborFreeze Plug - SingletorqueFreeze Plugs - AlllaborFreeze Plugs - AlltorqueFront Brake Pad ReplacementlaborFront Brake Pad ReplacementtorqueFront Main SeallaborFront Main SealtorqueFront PipelaborFront PipetorqueFront Struts - PairlaborFront Struts - PairtorqueFront Suspension RebuildlaborFront Suspension RebuildtorqueFuel CaplaborFuel Filler NecklaborFuel Filler NecktorqueFuel FilterlaborFuel FiltertorqueFuel Filter - In-TanklaborFuel Filter - In-TanktorqueFuel Injection System Diagnostics and TroubleshootinglaborFuel Injector - SinglelaborFuel Injector - SingletorqueFuel Injector CleaninglaborFuel Injector CleaningtorqueFuel Injectors - AlllaborFuel Injectors - AlltorqueFuel Level SensorlaborFuel Level SensortorqueFuel Line - High PressurelaborFuel Line - High PressuretorqueFuel Line - ReturnlaborFuel Line - ReturntorqueFuel Line and Filter ServicelaborFuel Pressure RegulatorlaborFuel Pressure RegulatortorqueFuel PumplaborFuel PumptorqueFuel Pump ModulelaborFuel Pump ModuletorqueFuel Pump RelaylaborFuel Pump RelaytorqueFuel RaillaborFuel RailtorqueFuel TanklaborFuel TanktorqueFuel Tank StraplaborFuel Tank StraptorqueFull Engine Tune-UplaborFull Engine Tune-UptorqueFuse Box - Engine BaylaborFuse Box - Engine BaytorqueFuse Box - InteriorlaborFuse Box - InteriortorqueGenerator Service and RebuildlaborGlove BoxlaborGlove BoxtorqueGlove Box LatchlaborGlove Box LatchtorqueGrillelaborGrilletorqueHarmonic BalancerlaborHarmonic BalancertorqueHead Gasket - SinglelaborHead Gasket - SingletorqueHead Gaskets - BothlaborHead Gaskets - BothtorqueHeadlight AssemblylaborHeadlight AssemblytorqueHeadlight Bulb - SinglelaborHeadlight Bulb - SingletorqueHeadlight Bulbs - PairlaborHeadlight SwitchlaborHeadlight SwitchtorqueHeadlinerlaborHeadlinertorqueHeated Seat ModulelaborHeated Seat ModuletorqueHeater Control ValvelaborHeater Control ValvetorqueHeater CorelaborHeater CoretorqueHeater HoseslaborHeater HosestorqueHID BallastlaborHID BallasttorqueHigh Pressure Fuel PumplaborHigh Pressure Fuel PumptorqueHoodlaborHoodtorqueHood HingelaborHood HingetorqueHood LatchlaborHood LatchtorqueHood Release CablelaborHood Release CabletorqueHood StrutlaborHood StruttorqueHornlaborHorntorqueHorn RelaylaborHorn RelaytorqueHVAC Control PanellaborHVAC Control PaneltorqueIdle Air Control ValvelaborIdle Air Control ValvetorqueIdler PulleylaborIdler PulleytorqueIgnition Coil - SinglelaborIgnition Coil - SingletorqueIgnition Coils - AlllaborIgnition Coils - AlltorqueIgnition Control ModulelaborIgnition Control ModuletorqueIgnition Lock CylinderlaborIgnition Lock CylindertorqueIgnition SwitchlaborIgnition SwitchtorqueIgnition Timing AdjustmentlaborInstrument ClusterlaborInstrument ClustertorqueInstrument Cluster ServicelaborIntake ManifoldlaborIntake ManifoldtorqueIntake Manifold GasketlaborIntake Manifold GaskettorqueIntercoolerlaborIntercoolertorqueIntermediate PipelaborIntermediate PipetorqueKnock SensorlaborKnock SensortorqueKnuckle/Spindle - FrontlaborKnuckle/Spindle - FronttorqueKnuckle/Spindle - RearlaborKnuckle/Spindle - ReartorqueLateral ArmlaborLateral ArmtorqueLeak-Down TestlaborLED Headlight ModulelaborLED Headlight ModuletorqueLifter - SinglelaborLifter - SingletorqueLifters/Tappets - AlllaborLifters/Tappets - AlltorqueLimited Slip Clutch PacklaborLimited Slip Clutch PacktorqueLong Block ReplacementlaborLong Block ReplacementtorqueLower Control Arm - FrontlaborLower Control Arm - FronttorqueLower Control Arm - RearlaborLower Control Arm - ReartorqueMain BearingslaborMain BearingstorqueMain RelaylaborMain RelaytorqueManifold Absolute Pressure SensorlaborManifold Absolute Pressure SensortorqueMass Air Flow SensorlaborMass Air Flow SensortorqueMode Door ActuatorlaborMode Door ActuatortorqueMufflerlaborMufflertorqueNeutral Safety SwitchlaborNeutral Safety SwitchtorqueNoise DiagnosislaborO2 Sensor - DownstreamlaborO2 Sensor - DownstreamtorqueO2 Sensor - UpstreamlaborO2 Sensor - UpstreamtorqueO2 Sensors - AlllaborO2 Sensors - AlltorqueOil ChangelaborOil ChangetorqueOil Level SensorlaborOil Level SensortorqueOil Pan GasketlaborOil Pan GaskettorqueOil Pan ReplacementlaborOil Pan ReplacementtorqueOil Pressure SensorlaborOil Pressure SensortorqueOil PumplaborOil PumptorqueOil Separator/PCVlaborOverdrive SolenoidlaborOverdrive SolenoidtorqueParking Brake ActuatorlaborParking Brake ActuatortorqueParking Brake CablelaborParking Brake CabletorqueParking Brake ShoeslaborParking Brake ShoestorquePCV ValvelaborPCV ValvetorquePedal PadslaborPedal PadstorquePiston - SinglelaborPiston - SingletorquePiston Rings - AlllaborPiston Rings - AlltorquePistons - AlllaborPistons - AlltorquePower Antenna MotorlaborPower Antenna MotortorquePower Mirror MotorlaborPower Mirror MotortorquePower Seat MotorlaborPower Seat MotortorquePower SteeringfluidPower Steering Hose - High PressurelaborPower Steering Hose - High PressuretorquePower Steering Hose - ReturnlaborPower Steering Hose - ReturntorquePower Steering RacklaborPower Steering RacktorquePower Steering ReservoirlaborPower Steering ReservoirtorquePower Window Motor - FrontlaborPower Window Motor - FronttorquePower Window Motor - RearlaborPower Window Motor - ReartorquePower Window Regulator - FrontlaborPower Window Regulator - FronttorquePower Window Regulator - RearlaborPower Window Regulator - ReartorquePre-Purchase InspectionlaborPressure PlatelaborPressure PlatetorqueQuarter GlasslaborQuarter GlasstorqueQuarter PanellaborQuarter PaneltorqueRack and Pinion BootslaborRack and Pinion BootstorqueRadiatorlaborRadiatortorqueRadiator CaplaborRadiator CaptorqueRadiator Hose - LowerlaborRadiator Hose - LowertorqueRadiator Hose - UpperlaborRadiator Hose - UppertorqueRadiator Hoses - BothlaborRadiator Hoses - BothtorqueRadiator Removal and ServicelaborRadiator Removal and ServicetorqueRadio/Head UnitlaborRadio/Head UnittorqueRadius ArmlaborRadius ArmtorqueRadius Arm BushinglaborRadius Arm BushingtorqueRear DifferentialfluidRear Main SeallaborRear Main SealtorqueRear Shocks - PairlaborRear Shocks - PairtorqueRear Suspension ServicelaborRear Suspension ServicetorqueRear WindowlaborRear WindowtorqueRearview MirrorlaborRearview MirrortorqueRecirculation Door ActuatorlaborRecirculation Door ActuatortorqueRelay - GenericlaborRelay - GenerictorqueResonatorlaborResonatortorqueRing and PinionlaborRing and PiniontorqueRocker Arms - AlllaborRocker Arms - AlltorqueRocker PanellaborRocker PaneltorqueSeat - FrontlaborSeat - FronttorqueSeat - RearlaborSeat - ReartorqueSeat BeltlaborSeat BelttorqueSeat Belt BucklelaborSeat Belt BuckletorqueSeat Belt PretensionerlaborSeat Belt PretensionertorqueSeat CoverlaborSeat CovertorqueSeat FoamlaborSeat FoamtorqueSeat Heater ElementlaborSeat Heater ElementtorqueSeat TracklaborSeat TracktorqueSerpentine BeltlaborSerpentine BelttorqueSerpentine Belt TensionerlaborSerpentine Belt TensionertorqueShift CablelaborShift CabletorqueShift ForklaborShift ForktorqueShift LinkagelaborShift LinkagetorqueShift Solenoid - SinglelaborShift Solenoid - SingletorqueShift Solenoids - AlllaborShift Solenoids - AlltorqueShifter BootlaborShifter BoottorqueShifter KnoblaborShifter KnobtorqueShock Absorber - Front (one side)laborShock Absorber - Rear (one side)laborShock Absorber ReplacementtorqueShort Block ReplacementlaborShort Block ReplacementtorqueSide Mirror AssemblylaborSide Mirror AssemblytorqueSide Mirror GlasslaborSide Mirror GlasstorqueSpark PlugslaborSpark PlugstorqueSpeaker - DashlaborSpeaker - DashtorqueSpeaker - DoorlaborSpeaker - DoortorqueSpeedometerlaborSpeedometertorqueStarterlaborStartertorqueStarter SolenoidlaborStarter SolenoidtorqueState InspectionlaborSteering Angle SensorlaborSteering Angle SensortorqueSteering ColumnlaborSteering ColumntorqueSteering CouplerlaborSteering CouplertorqueSteering DamperlaborSteering DampertorqueSteering Shaft - IntermediatelaborSteering Shaft - IntermediatetorqueSteering Shaft - UpperlaborSteering Shaft - UppertorqueSteering WheellaborSteering WheeltorqueSteering Wheel CoverlaborSteering Wheel CovertorqueStrut Assembly - FrontlaborStrut Assembly - RearlaborStrut Assembly - ReartorqueStrut BearinglaborStrut BearingtorqueStrut Mount - FrontlaborStrut Mount - FronttorqueStrut Mount - RearlaborStrut Mount - ReartorqueSubframelaborSubframetorqueSubframe BushinglaborSubframe BushingtorqueSubwooferlaborSubwoofertorqueSun VisorlaborSun VisortorqueSway Bar - FrontlaborSway Bar - FronttorqueSway Bar - RearlaborSway Bar - ReartorqueSway Bar Bushing - FrontlaborSway Bar Bushing - FronttorqueSway Bar Bushing - RearlaborSway Bar Bushing - ReartorqueSway Bar Link - FrontlaborSway Bar Link - FronttorqueSway Bar Link - RearlaborSway Bar Link - ReartorqueSway Bar Links - Front PairlaborSway Bar Links - Front PairtorqueSynchros - AlllaborSynchros - AlltorqueSynchros - Single GearlaborSynchros - Single GeartorqueTail Light AssemblylaborTail Light AssemblytorqueTail Light BulblaborTail Light BulbtorqueTail PipelaborTail PipetorqueThermostatlaborThermostattorqueThermostat HousinglaborThermostat HousingtorqueThird Brake LightlaborThird Brake LighttorqueThrottle BodylaborThrottle BodytorqueThrottle Position SensorlaborThrottle Position SensortorqueThrow-Out BearinglaborTie Rod AssemblylaborTie Rod AssemblytorqueTie Rod End - InnerlaborTie Rod End - InnertorqueTie Rod End - OuterlaborTie Rod End - OutertorqueTie Rods - Both SideslaborTie Rods - Both SidestorqueTiming ChainlaborTiming ChaintorqueTiming Chain GuidelaborTiming Chain GuidetorqueTiming Chain KitlaborTiming Chain KittorqueTiming Chain TensionerlaborTiming Chain TensionertorqueTire BalancelaborTire Mount and BalancelaborTire RotationlaborTorque ConverterlaborTorque ConvertertorqueTorque Converter Clutch SolenoidlaborTorque Converter Clutch SolenoidtorqueTorsion BarlaborTorsion BartorqueTorsion Bar AdjustmentlaborTorsion Bar AdjustmenttorqueTPMS RelearnlaborTPMS SensorlaborTrailing ArmlaborTrailing ArmtorqueTrailing Arm BushinglaborTrailing Arm BushingtorqueTransmission Control ModulelaborTransmission Control ModuletorqueTransmission Cooler LineslaborTransmission Cooler LinestorqueTransmission FilterlaborTransmission FiltertorqueTransmission Filter and FluidlaborTransmission Filter and FluidtorqueTransmission Fluid ChangelaborTransmission Fluid ChangetorqueTransmission FlushlaborTransmission FlushtorqueTransmission Input Shaft BearinglaborTransmission Input Shaft BearingtorqueTransmission MountlaborTransmission MounttorqueTransmission Oil CoolerlaborTransmission Oil CoolertorqueTransmission Output Shaft BearinglaborTransmission Output Shaft BearingtorqueTransmission Pan GasketlaborTransmission Pan GaskettorqueTransmission R&R - AutomaticlaborTransmission R&R - AutomatictorqueTransmission Range SensorlaborTransmission Range SensortorqueTransmission Rebuild - AutomaticlaborTransmission Rebuild - AutomatictorqueTransmission ServicelaborTransmission Speed Sensor - InputlaborTransmission Speed Sensor - InputtorqueTransmission Speed Sensor - OutputlaborTransmission Speed Sensor - OutputtorqueTrunk HingelaborTrunk HingetorqueTrunk LatchlaborTrunk LatchtorqueTrunk LidlaborTrunk LidtorqueTrunk StrutlaborTrunk StruttorqueTrunk/Liftgate ActuatorlaborTrunk/Liftgate ActuatortorqueTune-Up - MajorlaborTune-Up - MinorlaborTurbo Wastegate ActuatorlaborTurbo Wastegate ActuatortorqueTurbochargerlaborTurbochargertorqueTurn Signal Bulb - FrontlaborTurn Signal Bulb - FronttorqueTurn Signal Bulb - RearlaborTurn Signal Bulb - ReartorqueTurn Signal SwitchlaborTurn Signal SwitchtorqueU-JointlaborU-JointtorqueUpper Control Arm - FrontlaborUpper Control Arm - FronttorqueUpper Control Arm - RearlaborUpper Control Arm - ReartorqueValve AdjustmentlaborValve AdjustmenttorqueValve BodylaborValve BodytorqueValve Cover Gasket - SinglelaborValve Cover Gasket - SingletorqueValve Cover Gaskets - BothlaborValve Cover Gaskets - BothtorqueValve Job - CompletelaborValve Job - CompletetorqueValve SealslaborValve SealstorqueValve Spring - SinglelaborValve Spring - SingletorqueValve Springs - AlllaborValve Springs - AlltorqueVariable Valve Timing ActuatorlaborVariable Valve Timing ActuatortorqueVoltage RegulatorlaborVoltage RegulatortorqueVVT Solenoid - SinglelaborVVT Solenoid - SingletorqueVVT Solenoids - AlllaborVVT Solenoids - AlltorqueWasher FluidfluidWasher PumplaborWasher PumptorqueWasher ReservoirlaborWasher ReservoirtorqueWater PumplaborWater PumptorqueWheel AlignmentlaborWheel Bearing - Press-In FrontlaborWheel Bearing - Press-In FronttorqueWheel Bearing - Press-In RearlaborWheel Bearing - Press-In ReartorqueWheel Bearing Hub - FrontlaborWheel Bearing Hub - FronttorqueWheel Bearing Hub - RearlaborWheel Bearing Hub - ReartorqueWheel StudstorqueWindow Motor and Regulator - FrontlaborWindow Motor and Regulator - FronttorqueWindow Motor and Regulator - RearlaborWindow Motor and Regulator - ReartorqueWindshieldlaborWindshieldtorqueWindshield MoldinglaborWiper Blade ReplacementlaborWiper LinkagelaborWiper LinkagetorqueWiper Motor - FrontlaborWiper Motor - FronttorqueWiper Motor - RearlaborWiper Motor - ReartorqueWiper SwitchlaborWiper Switchtorque
Full specs
5-Year Cost of Ownership
$37,370 maintenance + known platform issues
~$7,474/yr · 620¢/mile equivalent · $12,742 maintenance + $22,028 expected platform issues

Common Problems & Known Issues

The 2021 720S is McLaren's mid-generation M840T-powered supercar with known piston/liner issues that can appear surprisingly early. When healthy, it's brilliant; when not, engine rebuilds are eye-wateringly expensive and increasingly common on hard-driven or heat-cycled examples.

Piston Ring / Cylinder Liner Failure (M840T Engine)

Occasional · high severity
Typical onset: 15,000-40,000 mi
Symptoms: Excessive oil consumption (1+ quart per 1,000 miles), Blue smoke on startup or under load, Loss of compression, misfires, rough idle, Metal debris in oil during analysis
Fix: Full engine-out rebuild required: replace pistons, rings, machine or re-sleeve liners, new bearings. 60-80 hours labor depending on machine shop turnaround. McLaren extended warranty coverage varies by market and build date.
Estimated cost: $35,000-55,000

Transmission Oil Cooler Leaks

Common · medium severity
Typical onset: 20,000-50,000 mi
Symptoms: Transmission fluid drips under center of car, Burnt smell after spirited driving, Transmission overheat warnings on track, Low fluid level warnings
Fix: Replace cooler assembly and hoses; rear bodywork removal required for access. 8-12 hours labor. Some units have revised cooler design from factory; aftermarket upgrades available.
Estimated cost: $3,500-6,000

Transmission Mount Failure

Occasional · medium severity
Typical onset: 25,000-60,000 mi
Symptoms: Clunking on hard acceleration or deceleration, Vibration through cabin at idle in gear, Excessive driveline movement visible from below, Grinding noises during shifts
Fix: Replace hydraulic transmission mount. Requires rear subframe support and partial exhaust removal. 6-9 hours labor. OEM part only; no viable aftermarket.
Estimated cost: $2,800-4,200

Shift Solenoid Pack Failure (7-Speed SSG)

Occasional · medium severity
Typical onset: 30,000-70,000 mi
Symptoms: Harsh or delayed shifts, especially 2-3 and 5-6, Transmission fault codes, limp mode, Inability to select certain gears, Jerky behavior in automatic mode
Fix: Replace solenoid assembly; requires transmission pan drop and valve body access. 5-7 hours labor. Software calibration update recommended simultaneously.
Estimated cost: $2,200-3,800

High-Pressure Fuel Filter Clogging

Occasional · medium severity
Symptoms: Hesitation or stumble at high RPM, Reduced power above 6,000 RPM, Long crank times, especially when hot, Lean fuel trim codes
Fix: Replace high-pressure fuel filter in tank module. Tank drop required, 4-6 hours labor. Often contaminated by poor fuel quality or tank debris. McLaren recommends every 3 years regardless of miles.
Estimated cost: $1,800-2,800

Crankshaft Position Sensor Dropout

Rare · high severity
Symptoms: Random no-start condition, crank but no fire, Stalling while driving with immediate restart ability, Intermittent loss of tachometer signal, Engine cuts out momentarily under load
Fix: Replace crankshaft position sensor; requires access from underneath, 2-3 hours labor. Confirm wiring harness integrity before replacing sensor. Can strand you unexpectedly.
Estimated cost: $800-1,400
Owner tips
  • Do oil analysis every 3,000 miles to catch piston wear early—catching it before catastrophic failure can save $30K+
  • Use only top-tier fuel (93+ octane) and replace fuel filter every 3 years even if low mileage
  • Avoid extended heat-soak cycles (track day cool-down lap is critical)—piston failures correlate strongly with heat abuse
  • Budget $5,000-8,000/year for maintenance even on low-mileage examples; these are not set-and-forget supercars
  • Verify any CPO or used example has updated transmission cooler and recent oil analysis showing clean results
Spectacular performance and engineering, but the M840T piston lottery is real—buy only with comprehensive warranty or deep reserves for potential engine rebuild; not a casual ownership proposition.
AI-assisted summary drawn from NHTSA recall data, our labor-times database, and platform knowledge. Not a substitute for a pre-purchase inspection on a specific vehicle.
🔧 Built by master technician Chris Hackleman · Master Technician · 20+ years.
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