2020 BMW 3 Series M3 Sedan engine fastener tightening specifications

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Condition	Value

expand_moreAir intake system

expand_moreIntake manifold


M3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m

expand_moreAuxiliary assemblies

expand_moreAuxiliary drive belt deflection pulley

expand_moreM3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)

expand_moreSupport on the engine block


With deflection pulley	28.03 lbf⋅ft28.03 lbf⋅ft38 N⋅m


Otherwise	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m

expand_moreAuxiliary drive belt tensioner


M3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)	28.03 lbf⋅ft28.03 lbf⋅ft38 N⋅m

expand_moreAir-conditioning compressor


M3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m

expand_moreAir-conditioning compressor bracket


M3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m

expand_moreAlternator


M3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m

expand_moreVacuum pump


M3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)	8.85 lbf⋅ft8.85 lbf⋅ft12 N⋅m

expand_moreVacuum pump sprocket wheel


M3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)	48.68 lbf⋅ft48.68 lbf⋅ft66 N⋅m
Clean and lubricate the screws.

expand_moreCarburetion

expand_moreFuel-distributing pipe


M3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)	9.59 lbf⋅ft9.59 lbf⋅ft13 N⋅m

expand_moreHigh-pressure line


M3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m

expand_moreInjection nozzle (injector)


M3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m

expand_moreCharging

expand_moreTurbo charger

expand_moreM3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)

expand_moreAt the cylinder head


First stage	8.85 lbf⋅ft8.85 lbf⋅ft12 N⋅m
Replace nuts.
Third stage	13.28 lbf⋅ft13.28 lbf⋅ft18 N⋅m

expand_moreStud bolt at the cylinder head


Second stage	90°90°90°

expand_moreTurbocharger oil feed line

expand_moreM3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)


At the turbocharger	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
On the engine block	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreTurbocharger oil return line

expand_moreM3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)


At the turbocharger	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
On the engine block	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreCooling system

expand_moreCoolant pump


M3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreCoolant pump pulley


M3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreCylinder head

expand_moreCamshaft bearing

expand_moreM3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)


Inlet camshaft	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m

expand_moreOutlet camshaft


First stage	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Second stage	60°60°60°

expand_moreCylinder head screws

expand_moreM3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)


First stage	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Replace bolts.
Second stage	90°90°90°
Third stage	180°180°180°

expand_moreM9 × 30 screws


M9 × 70 screws	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m

expand_moreValve cover


M3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m

expand_moreEngine block

expand_moreConnecting rod bearing

expand_moreM3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Replace, wash and lightly lubricate the screws.
Second stage	140°140°140°

expand_moreEngine block closure screws

expand_moreM3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)

expand_moreOn timing case cover


Bottom	19.91 lbf⋅ft19.91 lbf⋅ft27 N⋅m
Top	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m

expand_moreFlywheel

expand_moreM3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)


First stage	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
Replace screws.
Second stage	45°45°45°

expand_moreMain bearing

expand_moreM3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)


First stage	73.76 lbf⋅ft73.76 lbf⋅ft100 N⋅m
Replace screws, wash and slightly oil.
Second stage	270°270°270°

expand_moreVibration damper


M3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m

expand_moreEngine control

expand_moreChain tensioner

expand_moreM3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)


At the cylinder head	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m
Oil thread.

expand_moreControl drive chain guide rail

expand_moreM3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)


At the cylinder head	10.33 lbf⋅ft10.33 lbf⋅ft14 N⋅m
On the engine block	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreControl drive chain tensioner

expand_moreM3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)


On the engine block	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreControl unit for intake valve timing


M3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m

expand_moreEccentric shaft for intake valve timing


M3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m

expand_moreInlet camshaft wheel

expand_moreM3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Replace bolts.
Second stage	180°180°180°

expand_moreOutlet camshaft wheel

expand_moreM3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Replace bolts.
Second stage	180°180°180°

expand_moreEngine lubrication

expand_moreOil cooler


M3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)	11.8 lbf⋅ft11.8 lbf⋅ft16 N⋅m

expand_moreOil drain plug

expand_moreM3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)

expand_moreMagnesium


Oil sump	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreOil filter housing

expand_moreM3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)


At the cylinder head	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
Oil filter cover	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreOil pressure sensor

expand_moreM3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Second stage	16°16°16°

expand_moreOil pump


M3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreOil pump chain wheel

expand_moreM3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)


First stage	3.69 lbf⋅ft3.69 lbf⋅ft5 N⋅m
Use new screw. (left-hand thread)
Second stage	90°90°90°

expand_moreOil sump

expand_moreM3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)


First stage	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreAluminium oil sump


Second stage	180°180°180°


At the gearbox	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m

expand_moreMagnesium oil sump


Second stage	60°60°60°

expand_moreEngine management

expand_moreCamshaft sensor


M3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreCharge air pressure sensor


M3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)	2.95 lbf⋅ft2.95 lbf⋅ft4 N⋅m

expand_moreCrankshaft sensor


M3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)	3.39 lbf⋅ft3.39 lbf⋅ft4.6 N⋅m

expand_moreKnock sensor


M3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m

expand_moreLambda sensor


M3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m

expand_moreEngine mounting

expand_moreSubframe stiffening plate

expand_moreM3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)

expand_moreM10


First stage	41.3 lbf⋅ft41.3 lbf⋅ft56 N⋅m
Replace screws.
Second stage	90°90°90°

expand_moreExhaust system

expand_moreCatalytic converter

expand_moreM3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)

expand_moreAt the turbocharger


Clamps	9.59 lbf⋅ft9.59 lbf⋅ft13 N⋅m

expand_moreCatalytic converter bracket

expand_moreM3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)


M6	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreExhaust manifold heat shields


M3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreExhaust pipe

expand_moreM3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)


On catalytic converter	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m

expand_moreExhaust pipe bracket

expand_moreM3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)


At the gearbox	20.65 lbf⋅ft20.65 lbf⋅ft28 N⋅m
On chassis	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m

expand_moreExhaust pipe rear

expand_moreM3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)


Clamps	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_moreIgnition system

expand_moreSpark plugs

expand_moreM3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)


M12 × 1,25 screws	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
M14 × 1,25 screws	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m

expand_moreStart system

expand_moreStarter


M3 with gasoline straight-6 3.0 L 425 HP engine (2014.1–)	28.03 lbf⋅ft28.03 lbf⋅ft38 N⋅m

Please be noted that all capacities listed here are approximate. Check fluid levels when adding or refilling as recommended in your 2020 BMW 3 Series M3 Sedan user's manual. Keep in mind that all information here is provided “as is” without any warranty of any kind.

Before doing any DIY service please check your insurance policy and BMW warranty policy for your region. In some regions DIY service may invalidate your warranty.

Maintenance Items

Chassis and Body Fastener Tightening Specifications
Engine Fastener Tightening Specifications
Front Suspension Fastener Tightening Specifications
Rear Suspension Fastener Tightening Specifications
Transmission Fastener Tightening Specifications

Service Intervals

Conquer your fears and never give up!

DIY car service is not as difficult as it looks like and it might save you thousands of dollars per year. It might be even fun and a good thing to do with your kids on a weekend to teach them how basic machinery works. It's really hard to screw something up and damage your car permanently if you use right tools, follow BMW 3 Series M3 Sedan service manual and use right parts and fluids in prescribed amounts. Even modern cars stuffed with electronics can be serviced in your garage or even in your driveway. Changing engine oil, brake fluid, ATF, replacing brake pads, and etc. It's all may be done by yourself in a mater of a couple of hours.

Doing basic service for your 2020 BMW 3 Series M3 Sedan you're not only saving money, but also also improving your technical skills and learning something new.

2020 BMW 3 Series M3 Sedan Sixth generation Engine Fastener Tightening Specifications

Table of Contents

Conquer your fears and never give up!

BMW 3 Series M3 Sedan Sixth generation model years

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