2007 BMW 1 Series Coupe engine fastener tightening specifications

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Condition	Value

expand_moreAir intake system

expand_moreIntake manifold


M6	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
M7	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
M8	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m

expand_moreAuxiliary assemblies

expand_moreAlternator

expand_moreBMW gasoline straight-6 3.0 L N52 B30 A 215 HP at 6600 RPM, 300 N⋅m at 2500 RPM


First stage	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Use new screws.
Second stage	180°180°180°

expand_moreAlternator pulley


125 i with gasoline straight-6 3.0 L 215 HP at 6600 RPM, 300 N⋅m at 2500 RPM engine (2007.10–2013.10)	59 lbf⋅ft59 lbf⋅ft80 N⋅m

expand_moreCharging

expand_moreTurbo charger


On exhaust manifold	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Use hot screw paste

expand_moreTurbocharger oil feed line


Banjo screws	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
Replace sealing rings.


Turbocharger oil return line	2.21 lbf⋅ft2.21 lbf⋅ft3 N⋅m
Hose clamps.

expand_moreCooling system

expand_moreCoolant drain plug

expand_more125 i with gasoline straight-6 3.0 L 215 HP at 6600 RPM, 300 N⋅m at 2500 RPM engine (2007.10–2013.10)


Onto crankcase	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Replace sealing rings and screws.

expand_moreCylinder head

expand_moreCamshaft bearing

expand_moreBMW gasoline straight-6 3.0 L N52 B30 A 215 HP at 6600 RPM, 300 N⋅m at 2500 RPM

expand_moreInlet camshaft of N52 engine


M6 × 30 screws	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
Replace aluminum screws.

expand_moreOutlet camshaft N52 engine screws M7 × 70


First stage	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Replace aluminum screws.
Second stage	60°60°60°
Install bearing using special tool.

expand_moreInlet camshaft M7 × 70 screws of N53 engine


First stage	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Insert the screws dry.
Second stage	60°60°60°
Install bearing using special tool.

expand_moreOutlet camshaft M7 × 70 screws of N53 engine


First stage	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Insert the screws dry.
Second stage	60°60°60°
Install bearing using special tool.

expand_moreCylinder head screws

expand_moreBMW gasoline straight-6 3.0 L N52 B30 A 215 HP at 6600 RPM, 300 N⋅m at 2500 RPM

expand_moreMagnesium valve cover

expand_moreScrews 1 – 14

Figure 1. Cylinder head, Cylinder head screws, BMW gasoline straight-6 3.0 L N52 B30 A 215 HP at 6600 RPM, 300 N⋅m at 2500 RPM, Magnesium valve cover, Screws 1 – 14.


First stage	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Replace screws. See figure 1.
Second stage	90°90°90°
Fourth stage	45°45°45°

expand_moreScrews 1 – 10


Third stage	90°90°90°

expand_moreScrews 15 – 18


Fifth stage	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
Replace screws.
Sixth stage	90°90°90°

expand_morePlastic valve cover

expand_moreScrews 1 – 14


First stage	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Replace screws. See figure 1.
Second stage	90°90°90°
Fourth stage	45°45°45°

expand_moreScrews 1 – 10


Third stage	90°90°90°

expand_moreScrews 15 – 18


Fifth stage	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Replace screws.

expand_moreScrews 15 – 17


Sixth stage	90°90°90°

expand_moreScrew 18


Seventh stage	135°135°135°

expand_moreBMW gasoline straight-6 3.0 L N54 B30 A 302 HP

expand_moreN54 B30 A engine

expand_moreScrews 1 – 14

Figure 2. Cylinder head, Cylinder head screws, BMW gasoline straight-6 3.0 L N54 B30 A 302 HP, N54 B30 A engine, Screws 1 – 14.


First stage	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Replace screws. See figure 2.
Second stage	90°90°90°
Fourth stage	45°45°45°

expand_moreScrews 1 – 10


Third stage	90°90°90°

expand_moreScrews 15 – 18


Fifth stage	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
Replace screws.

expand_moreN55 B30 A engine

expand_moreScrews 1 – 14


First stage	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Replace screws. See figure 2.
Second stage	90°90°90°
Third stage	180°180°180°

expand_moreScrews 15 – 18


Fourth stage	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m

expand_moreAll other modifications

expand_moreScrews 1 – 10

Figure 3. Cylinder head, Cylinder head screws, All other modifications, Screws 1 – 10.


First stage	51.63 lbf⋅ft51.63 lbf⋅ft70 N⋅m
Replace screws. See figure 3.
Second stage	180° detach
loosen in reverse order to the illustration
Third stage	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Fourth stage	120°120°120°
Fifth stage	120°120°120°

expand_moreScrew 11


Sixth stage	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m

expand_moreValve cover

expand_moreBMW gasoline straight-6 3.0 L N52 B30 A 215 HP at 6600 RPM, 300 N⋅m at 2500 RPM

expand_moreMagnesium valve cover


First stage	5.16 lbf⋅ft5.16 lbf⋅ft7 N⋅m
Replace screws.
Second stage	90°90°90°


Plastic valve cover	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m

expand_moreAll other modifications

Figure 4. Cylinder head, Valve cover, All other modifications.


M6	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
See figure 4.
M7	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m

expand_moreEngine block

expand_moreConnecting rod bearing

expand_moreBMW diesel straight-4 2.0 L N47 D20 A 174 HP, 340 N⋅m at 2000 RPM


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Second stage	70°70°70°

expand_moreBMW gasoline straight-6 3.0 L N52 B30 A 215 HP at 6600 RPM, 300 N⋅m at 2500 RPM


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Replace screw, wash and slightly oil.
Second stage	120°120°120°

expand_moreCrankshaft central screws

expand_moreBMW gasoline straight-6 3.0 L N52 B30 A 215 HP at 6600 RPM, 300 N⋅m at 2500 RPM

expand_moreM16


First stage	73.76 lbf⋅ft73.76 lbf⋅ft100 N⋅m
Replace screws.
Second stage	360°360°360°

expand_moreBMW gasoline straight-6 3.0 L N54 B30 A 302 HP

expand_moreN54 B30 A engine M16 screws


First stage	73.76 lbf⋅ft73.76 lbf⋅ft100 N⋅m
Use new screw.
Second stage	360°360°360°

expand_moreN55 B30 A engine M18 screws


First stage	73.76 lbf⋅ft73.76 lbf⋅ft100 N⋅m
Use new screw.
Second stage	270°270°270°

expand_moreAll other modifications


M16 × 74 screws	221.27 lbf⋅ft221.27 lbf⋅ft300 N⋅m
Replace and lightly oil the screws.

expand_moreCrankshaft pulley


All BMW gasoline straight-4 2.0 L N43 B20 A engines	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m

expand_moreDrive plate

expand_moreBMW gasoline straight-6 3.0 L N52 B30 A 215 HP at 6600 RPM, 300 N⋅m at 2500 RPM

expand_moreN52 engine


Magnesium valve cover	88.51 lbf⋅ft88.51 lbf⋅ft120 N⋅m
Replace screws.

expand_morePlastic valve cover screws of N52 engine


First stage	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Replace screws.
Second stage	92.2 lbf⋅ft92.2 lbf⋅ft125 N⋅m


N53 engine	92.2 lbf⋅ft92.2 lbf⋅ft125 N⋅m
Replace screws.


Engine block closure screws	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreFlywheel


BMW gasoline straight-6 3.0 L N55 B30 A 302 HP	92.2 lbf⋅ft92.2 lbf⋅ft125 N⋅m
Replace screws.
BMW gasoline straight-6 3.0 L N54 B30 A 302 HP	92.2 lbf⋅ft92.2 lbf⋅ft125 N⋅m
Replace screws.
All other modifications	88.51 lbf⋅ft88.51 lbf⋅ft120 N⋅m
Replace screws.

expand_moreMain bearing

expand_moreBMW gasoline straight-6 3.0 L N52 B30 A 215 HP at 6600 RPM, 300 N⋅m at 2500 RPM

expand_moreM10 × 100 screws


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Replace screws.
Second stage	70°70°70°

expand_moreM10 × 27 screws


First stage	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
Replace bolts.
Second stage	90°90°90°

expand_moreM10 × 41 screws


First stage	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
Replace bolts.
Second stage	90°90°90°

expand_moreM8 × 37 screws


First stage	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Replace bolts.
Second stage	90°90°90°

expand_moreAll other modifications


First stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Second stage	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Third stage	60°60°60°
Fourth stage	60°60°60°

expand_moreVibration damper

expand_moreBMW gasoline straight-4 2.0 L N43 B20 A 168 HP


M8 × 20 screws	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m

expand_moreBMW gasoline straight-6 3.0 L N52 B30 A 215 HP at 6600 RPM, 300 N⋅m at 2500 RPM


M8 × 16 screws (class 10.9)	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
M8 × 20 screws (class 8.8)	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreBMW gasoline straight-6 3.0 L N54 B30 A 302 HP


M8	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m

expand_moreAll other modifications


First stage	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
Replace screws.
Second stage	120°120°120°

expand_moreEngine control

expand_moreCamshaft timing chain guide rail

expand_moreBMW gasoline straight-4 2.0 L N43 B20 A 168 HP


M7	10.33 lbf⋅ft10.33 lbf⋅ft14 N⋅m
M8	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreBMW gasoline straight-6 3.0 L N52 B30 A 215 HP at 6600 RPM, 300 N⋅m at 2500 RPM

expand_moreBearing screws


M7	10.33 lbf⋅ft10.33 lbf⋅ft14 N⋅m

expand_moreM18


Cap	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreBMW gasoline straight-6 3.0 L N54 B30 A 302 HP


M7	10.33 lbf⋅ft10.33 lbf⋅ft14 N⋅m

expand_moreAll other modifications


M16 × 1,5 screws	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreCamshaft timing chain slip rail

expand_moreAt the cylinder head


M6 × 35 screws	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreCamshaft timing chain tensioner


BMW gasoline straight-6 3.0 L N52 B30 A 215 HP at 6600 RPM, 300 N⋅m at 2500 RPM	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m
Replace sealing rings.
All other modifications	51.63 lbf⋅ft51.63 lbf⋅ft70 N⋅m

expand_moreCamshaft timing chain tensioning rail

expand_more125 i with gasoline straight-6 3.0 L 215 HP at 6600 RPM, 300 N⋅m at 2500 RPM engine (2007.10–2013.10)

expand_moreBearing screws


M8	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreM22


Cap	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m

expand_moreChain tensioner

expand_moreBMW gasoline straight-4 2.0 L N43 B20 A 168 HP


M22 × 1,5 screws	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m

expand_moreAll other modifications


M22 × 1,5 screws	51.63 lbf⋅ft51.63 lbf⋅ft70 N⋅m


Control drive chain tensioner	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreInlet camshaft wheel

expand_moreBMW gasoline straight-6 3.0 L N52 B30 A 215 HP at 6600 RPM, 300 N⋅m at 2500 RPM

expand_moreN52 engine


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Use new screw.
Second stage	180°180°180°

expand_moreN53 engine


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Use new screw.
Second stage	180°180°180°

expand_moreOutlet camshaft wheel

expand_moreBMW gasoline straight-6 3.0 L N52 B30 A 215 HP at 6600 RPM, 300 N⋅m at 2500 RPM

expand_moreN52 engine


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Use new screw.
Second stage	180°180°180°

expand_moreN53 engine


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Use new screw.
Second stage	180°180°180°

expand_moreTiming case cover


M7	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
M8	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreEngine lubrication


Oil drain plug	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Replace sealing rings.

expand_moreOil filter housing

expand_moreBMW gasoline straight-6 3.0 L N52 B30 A 215 HP at 6600 RPM, 300 N⋅m at 2500 RPM


Oil filter cover	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
On the engine block	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m

expand_moreOil pump chain wheel

expand_moreBMW gasoline straight-6 3.0 L N52 B30 A 215 HP at 6600 RPM, 300 N⋅m at 2500 RPM

expand_moreM8 × 20 screws


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Second stage	45°45°45°

expand_moreOil sump

expand_moreBMW gasoline straight-6 3.0 L N52 B30 A 215 HP at 6600 RPM, 300 N⋅m at 2500 RPM

expand_moreAluminium oil sump

expand_moreM8 × 112 screws


First stage	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Replace screws.
Second stage	180°180°180°

expand_moreM8 × 26 screws


First stage	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Replace screws.
Second stage	90°90°90°

expand_moreM8 × 92 screws


First stage	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Replace screws.
Second stage	180°180°180°

expand_moreM8 × 24 screws

expand_moreSheet-steel sump


First stage	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Replace screws.
Second stage	90°90°90°

expand_moreEngine management


Lambda sensor	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m

expand_moreEngine mounting

expand_moreAll other modifications

expand_moreAt the crossmember


M10 screws (class 10.9)	41.3 lbf⋅ft41.3 lbf⋅ft56 N⋅m

expand_moreSubframe


M12	79.66 lbf⋅ft79.66 lbf⋅ft108 N⋅m

expand_moreExhaust system

expand_moreDiesel particulate filter

expand_moreAt the turbocharger


Clamps	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Replace clamps.

expand_moreExhaust manifold

expand_moreBMW gasoline straight-6 3.0 L N52 B30 A 215 HP at 6600 RPM, 300 N⋅m at 2500 RPM


M7	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Replace nuts.

expand_moreExhaust pipe

expand_moreAt the exhaust manifold


M10	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m
M8	22.86 lbf⋅ft22.86 lbf⋅ft31 N⋅m


Clamps	37.62 lbf⋅ft37.62 lbf⋅ft51 N⋅m

expand_moreExhaust pipe bracket


M12	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
M8	15.49 lbf⋅ft15.49 lbf⋅ft21 N⋅m

expand_moreParticle filter bracket

expand_moreAt the gearbox


M8	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m

expand_moreM8 × 20 screws


Strut	15.49 lbf⋅ft15.49 lbf⋅ft21 N⋅m

expand_moreIgnition system

expand_moreSpark plugs


M12	14.75–19.18 lbf⋅ft14.75–19.18 lbf⋅ft20–26 N⋅m
M14	19.91–24.34 lbf⋅ft19.91–24.34 lbf⋅ft27–33 N⋅m

expand_moreStart system

expand_moreStarter

expand_moreBMW gasoline straight-6 3.0 L N52 B30 A 215 HP at 6600 RPM, 300 N⋅m at 2500 RPM

expand_moreM10 × 30 screws


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Replace screws.
Second stage	90°90°90°

expand_moreM10 × 85 screws


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

Please be noted that all capacities listed here are approximate. Check fluid levels when adding or refilling as recommended in your 2007 BMW 1 Series Coupe 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

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 1 Series Coupe 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 2007 BMW 1 Series Coupe you're not only saving money, but also also improving your technical skills and learning something new.

2007 BMW 1 Series Coupe First generation Engine Fastener Tightening Specifications

Table of Contents

Conquer your fears and never give up!

BMW 1 Series Coupe First generation model years

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