2006 BMW 3 Series Coupe engine fastener tightening specifications

in your garage to make future searches easy.

Condition	Value

expand_moreAir intake system

expand_moreIntake manifold


325 i with gasoline straight-6 2.5 L 215 HP engine (2006.9–2013.12)	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
325 xi with gasoline straight-6 2.5 L 215 HP engine (2006.9–2013.12)	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
330 i with gasoline straight-6 3.0 L 255 HP engine (2006.9–2013.12)	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
330 xi with gasoline straight-6 3.0 L 255 HP engine (2006.9–2013.12)	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m

expand_moreAll other modifications


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_moreAuxiliary drive belt deflection pulley

expand_moreAll other modifications


M10	28.03 lbf⋅ft28.03 lbf⋅ft38 N⋅m
M8	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m

expand_moreAuxiliary drive belt tensioner

expand_more325 i (2006.6–2010.12)

expand_moreM11


First stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Replace screws.
Second stage	90°90°90°

expand_moreAll other modifications


M10	28.03 lbf⋅ft28.03 lbf⋅ft38 N⋅m

expand_moreAir-conditioning compressor

expand_more325 i with gasoline straight-6 2.5 L 201 HP engine (2006.9–2013.12)

expand_moreM8 × 87 screws


First stage	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Replace screws.
Second stage	165–195°165–195°165–195°

expand_moreAll other modifications


M10	28.03 lbf⋅ft28.03 lbf⋅ft38 N⋅m
M8	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m


Air-conditioning compressor pressure line	13.28–14.01 lbf⋅ft13.28–14.01 lbf⋅ft18–19 N⋅m

expand_moreAlternator

expand_more325 i (2006.6–2010.12)

expand_moreOnto crankcase (M8)


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

expand_more325 i with gasoline straight-6 2.5 L 201 HP engine (2006.9–2013.12)

expand_moreOnto crankcase

expand_moreM8


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

expand_moreAll other modifications


M10	28.03 lbf⋅ft28.03 lbf⋅ft38 N⋅m

expand_moreAlternator pulley


325 i (2006.6–2010.12)	59 lbf⋅ft59 lbf⋅ft80 N⋅m

expand_more325 i with gasoline straight-6 2.5 L 201 HP engine (2006.9–2013.12)


Manufacturer Bosch	59 lbf⋅ft59 lbf⋅ft80 N⋅m
Manufacturer Valeo	59 lbf⋅ft59 lbf⋅ft80 N⋅m

expand_morePower steering pump bracket

expand_more325 i (2006.6–2010.12)

expand_moreAluminium screws (M10)


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

expand_moreHydraulic lines at the servo-steering pump

expand_more325 i (2006.6–2010.12)


M16	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m

expand_moreServo pump pulley

expand_more325 i (2006.6–2010.12)


M8	15.49 lbf⋅ft15.49 lbf⋅ft21 N⋅m
Replace screws.

expand_moreVacuum pump

expand_more325 i (2006.6–2010.12)


M6 × 40 screws	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreVacuum pump sprocket wheel

expand_more325 i (2006.6–2010.12)


M10 × 30 screws	48.68 lbf⋅ft48.68 lbf⋅ft66 N⋅m

expand_moreCarburetion

expand_moreFuel-distributing pipe


All other modifications	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreHigh-pressure line

expand_moreAll other modifications


Union nuts	17.7 lbf⋅ft17.7 lbf⋅ft24 N⋅m

expand_moreHigh-pressure pump

expand_moreAll other modifications


M8	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m

expand_moreHigh-pressure pump pulley

expand_moreAll other modifications


Cap	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Replace the cover plate.

expand_moreM12


Central screws	47.94 lbf⋅ft47.94 lbf⋅ft65 N⋅m

expand_moreInjection hoses

expand_moreAll other modifications


Union nuts	17.7 lbf⋅ft17.7 lbf⋅ft24 N⋅m

expand_moreInjection nozzle (injector)

expand_moreAll other modifications


First stage	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Second stage	19.18 lbf⋅ft19.18 lbf⋅ft26 N⋅m

expand_moreCharging


Turbo charger	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Turbocharger oil feed line	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_more325 i (2006.6–2010.12)


M14	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m

expand_more325 i with gasoline straight-6 2.5 L 201 HP engine (2006.9–2013.12)

expand_moreOnto crankcase


M14	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m

expand_more325 i with gasoline straight-6 2.5 L 215 HP engine (2006.9–2013.12)


M14	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m

expand_moreCoolant pump

expand_more325 i (2006.6–2010.12)

expand_moreM8


First stage	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Replace screws.
Second stage	90°90°90°


All other modifications	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m


Radiator drain screws	1.84 lbf⋅ft1.84 lbf⋅ft2.5 N⋅m
Radiator mounting	1.84 lbf⋅ft1.84 lbf⋅ft2.5 N⋅m

expand_moreCylinder head

expand_moreCamshaft bearing

expand_more325 i (2006.6–2010.12)


Inlet camshaft	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
Replace aluminum screws.

expand_moreOutlet camshaft


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_more325 i with gasoline straight-6 2.5 L 201 HP engine (2006.9–2013.12)


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

expand_more325 xi with gasoline straight-6 2.5 L 215 HP engine (2006.9–2013.12)


Inlet camshaft	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
Replace aluminum screws.

expand_moreOutlet camshaft


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_more330 d with diesel straight-6 3.0 L 228 HP engine (2006.9–2013.12)

expand_moreM6


Second stage	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Tighten the bearing cover of the camshafts in 1/2 turning steps from inside to outside.

expand_moreM7


Second stage	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
Tighten the bearing cover of the camshafts in 1/2 turning steps from inside to outside.

expand_moreM8


Second stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Tighten the bearing cover of the camshafts in 1/2 turning steps from inside to outside.

expand_moreAll other modifications

expand_moreN52 engine

expand_moreInlet camshaft


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

expand_moreOutlet camshaft (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_moreN53 engine

expand_moreInlet camshaft M7 × 70 screws


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)


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_more325 i (2006.6–2010.12)

expand_moreM10 × 125 screws

Figure 1. Cylinder head, Cylinder head screws, 325 i (2006.6–2010.12), M10 × 125 screws.


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

expand_moreM9


First stage	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Replace screws.
Second stage	90°90°90°
Third stage	45°45°45°

expand_moreM9 × 30 screws


First stage	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Replace screws.
Second stage	90°90°90°

expand_moreM9 × 70 screws


First stage	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Replace screws.
Second stage	135°135°135°

expand_more325 i with gasoline straight-6 2.5 L 201 HP engine (2006.9–2013.12)

expand_moreScrews 1 – 14

Figure 2. Cylinder head, Cylinder head screws, 325 i with gasoline straight-6 2.5 L 201 HP engine (2006.9–2013.12), 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	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_more325 i with gasoline straight-6 2.5 L 215 HP engine (2006.9–2013.12)

expand_moreM10 × 125 screws

Figure 3. Cylinder head, Cylinder head screws, 325 i with gasoline straight-6 2.5 L 215 HP engine (2006.9–2013.12), M10 × 125 screws.


First stage	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Replace screws. See figure 3.
Second stage	90°90°90°
Third stage	90°90°90°
Fourth stage	45°45°45°

expand_moreM9


First stage	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Replace screws.
Second stage	90°90°90°
Third stage	45°45°45°

expand_moreM9 × 30 screws


First stage	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Replace screws.
Second stage	90°90°90°

expand_moreM9 × 70 screws


First stage	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Replace screws.
Second stage	135°135°135°

expand_more325 xi with gasoline straight-6 2.5 L 215 HP engine (2006.9–2013.12)

expand_moreMagnesium valve cover

expand_moreScrews 1 – 14

Figure 4. Cylinder head, Cylinder head screws, 325 xi with gasoline straight-6 2.5 L 215 HP engine (2006.9–2013.12), Magnesium valve cover, Screws 1 – 14.


First stage	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Replace screws. See figure 4.
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 4.
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_more330 i with gasoline straight-6 3.0 L 268 HP engine (2006.9–2010.2)

expand_moreScrews 1 – 14

Figure 5. Cylinder head, Cylinder head screws, 330 i with gasoline straight-6 3.0 L 268 HP engine (2006.9–2010.2), Screws 1 – 14.


First stage	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Use new screws. See figure 5.
Second stage	90°90°90°
Fourth stage	45°45°45°

expand_moreScrews 1 – 10


Third stage	90°90°90°

expand_moreScrews 15 – 17

expand_moreFifth stage


First step	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
Use new screws.
Second step	90°90°90°

expand_more330 xi with gasoline straight-6 3.0 L 268 HP engine (2006.9–2013.12)

expand_moreScrews 1 – 14


First stage	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Use new screws. See figure 5.
Second stage	90°90°90°
Fourth stage	45°45°45°

expand_moreScrews 1 – 10


Third stage	90°90°90°

expand_moreScrews 15 – 17

expand_moreFifth stage


First step	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
Use new screws.
Second step	90°90°90°

expand_moreAll other modifications

expand_moreN54 B30 A engine

expand_moreScrews 1 – 14

Figure 6. Cylinder head, Cylinder head screws, All other modifications, N54 B30 A engine, Screws 1 – 14.


First stage	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Replace screws. See figure 6.
Second stage	90°90°90°
Fourth stage	45°45°45°

expand_moreScrews 1 – 10


Third stage	90°90°90°

expand_moreN54 B30 A engine

expand_moreScrews 1 – 14


First stage	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Replace screws. See figure 6.
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_moreScrews 15 – 18


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

expand_moreValve cover

expand_more325 i with gasoline straight-6 2.5 L 201 HP engine (2006.9–2013.12)


M7	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
Replace aluminum screws.

expand_more325 xi with gasoline straight-6 2.5 L 215 HP engine (2006.9–2013.12)

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_more330 d with diesel straight-6 3.0 L 228 HP engine (2006.9–2013.12)

expand_moreM6


Screws	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreM7


Screws	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m

expand_more335 i with gasoline straight-6 3.0 L 302 HP engine (2006.9–2013.12)


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

expand_moreAll other modifications


M6	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m

expand_moreEngine block

expand_moreBalance shaft gear wheel


First stage	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
Second stage	90°90°90°

expand_moreConnecting rod bearing

expand_more325 i with gasoline straight-6 2.5 L 215 HP engine (2006.9–2013.12)


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Replace screw, wash and slightly oil.
Second stage	70°70°70°

expand_moreAll other modifications

expand_moreM8


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Replace, wash and lightly lubricate the screws.
Second stage	120°120°120°

expand_moreCrankshaft central screws

expand_more325 i (2006.6–2010.12)

expand_moreM16


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

expand_more325 i with gasoline straight-6 2.5 L 201 HP engine (2006.9–2013.12)

expand_moreM16


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

expand_moreAll other modifications

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_moreCrankshaft pulley


All other modifications	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m

expand_moreDrive plate

expand_more325 i (2006.6–2010.12)

expand_moreM12


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

expand_more325 i with gasoline straight-6 2.5 L 201 HP engine (2006.9–2013.12)

expand_moreN52 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


330 d with diesel straight-6 3.0 L 228 HP engine (2006.9–2013.12)	89.25 lbf⋅ft89.25 lbf⋅ft121 N⋅m
Replace screws.

expand_more330 i with gasoline straight-6 3.0 L 255 HP engine (2006.9–2013.12)

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


330 xd with diesel straight-6 3.0 L 228 HP engine (2006.9–2013.12)	89.25 lbf⋅ft89.25 lbf⋅ft121 N⋅m
Replace screws.

expand_more335 i with gasoline straight-6 3.0 L 302 HP engine (2006.9–2013.12)


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

expand_moreAll other modifications

expand_moreN52 engine


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

expand_morePlastic valve cover


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.

expand_moreEngine block closure screws

expand_moreAll other modifications


M30 × 1 screws	51.63 lbf⋅ft51.63 lbf⋅ft70 N⋅m
M40 × 1,5 screws	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m

expand_moreFlywheel


320 i with gasoline straight-4 2.0 L 148 HP engine (2006.11–2007.6)	95.88 lbf⋅ft95.88 lbf⋅ft130 N⋅m

expand_more335 xi with gasoline straight-6 3.0 L 302 HP engine (2006.9–2013.12)


N54 engine	88.51 lbf⋅ft88.51 lbf⋅ft120 N⋅m
Replace screws.

expand_moreN55 engine


First stage	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
Retap thread in holes and use new screws.
Second stage	45°45°45°

expand_moreAll other modifications


M12	88.51 lbf⋅ft88.51 lbf⋅ft120 N⋅m
Retap thread in holes and use new screws.

expand_moreMain bearing

expand_more325 i (2006.6–2010.12)

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_more325 i with gasoline straight-6 2.5 L 201 HP engine (2006.9–2013.12)

expand_moreM10 × 100 screws


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

expand_moreM10 × 27 screws


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

expand_moreM10 × 41 screws


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

expand_moreM8 × 37 screws


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

expand_more325 xi with gasoline straight-6 2.5 L 215 HP engine (2006.9–2013.12)

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

expand_moreM10 × 85 screws


First stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Replace screws.
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_more325 i (2006.6–2010.12)


M8 × 16 screws	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m


325 i with gasoline straight-6 2.5 L 215 HP engine (2006.9–2013.12)	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
325 xi with gasoline straight-6 2.5 L 215 HP engine (2006.9–2013.12)	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_more330 i with gasoline straight-6 3.0 L 255 HP engine (2006.9–2013.12)


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_more330 i with gasoline straight-6 3.0 L 268 HP engine (2006.9–2010.2)


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


330 xi with gasoline straight-6 3.0 L 255 HP engine (2006.9–2013.12)	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_more335 i with gasoline straight-6 3.0 L 302 HP engine (2006.9–2013.12)


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_more335 i with gasoline straight-6 3.0 L 302 HP engine (2006.9–2013.12)


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

expand_more335 xi with gasoline straight-6 3.0 L 302 HP engine (2006.9–2013.12)


M7	10.33 lbf⋅ft10.33 lbf⋅ft14 N⋅m

expand_moreAll other modifications

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_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


325 i (2006.6–2010.12)	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m
Replace sealing rings.

expand_more325 xi with gasoline straight-6 2.5 L 215 HP engine (2006.9–2013.12)

expand_moreN52 engine


Magnesium valve cover	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Replace sealing rings.
Plastic valve cover	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m
Replace sealing rings.


All other modifications	51.63 lbf⋅ft51.63 lbf⋅ft70 N⋅m
Replace sealing rings.

expand_moreCamshaft timing chain tensioning rail

expand_moreAll other modifications

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_moreCamshaft timing gear


All other modifications	10.33 lbf⋅ft10.33 lbf⋅ft14 N⋅m

expand_moreChain tensioner

expand_moreAll other modifications


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


Control drive chain guide rail	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Control drive chain tensioner	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Control drive chain tensioning rail	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreEccentric shaft for intake valve timing


M6	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreInlet camshaft wheel


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

expand_moreOutlet camshaft wheel


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

expand_moreTiming case cover

expand_more330 d with diesel straight-6 3.0 L 228 HP engine (2006.9–2013.12)


M10	34.67 lbf⋅ft34.67 lbf⋅ft47 N⋅m
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_moreAll other modifications


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

expand_moreEngine lubrication

expand_moreOil cooler

expand_more325 i (2006.6–2010.12)


M8	11.8 lbf⋅ft11.8 lbf⋅ft16 N⋅m
Replace sealing rings.

expand_more325 i with gasoline straight-6 2.5 L 215 HP engine (2006.9–2013.12)


M8	11.8 lbf⋅ft11.8 lbf⋅ft16 N⋅m
Replace sealing rings.


All other modifications	4.43 lbf⋅ft4.43 lbf⋅ft6 N⋅m

expand_moreOil drain plug


M12 × 1,5 screws	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Replace sealing rings.

expand_moreOil filter

expand_moreOn the engine block


M8	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m

expand_moreOil filter housing

expand_more325 i with gasoline straight-6 2.5 L 201 HP engine (2006.9–2013.12)

expand_moreAt the cylinder head


M8	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
Replace sealing rings.


Oil filter cover	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Replace sealing rings.

expand_more330 d with diesel straight-6 3.0 L 228 HP engine (2006.9–2013.12)


Oil filter	Tighten by hand

expand_moreOn the engine block


M20 × 1,5 screws	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
M8	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m

expand_moreAll other modifications


Oil filter cover	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreOil pump

expand_more325 i (2006.6–2010.12)

expand_moreM8 × 123 screws


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

expand_moreM8 × 31 screws


First stage	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Replace screws.
Second stage	90°90°90°

expand_more325 i with gasoline straight-6 2.5 L 201 HP engine (2006.9–2013.12)

expand_moreM8 × 123 screws


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

expand_moreM8 × 31 screws


First stage	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Replace screws.
Second stage	90°90°90°

expand_moreAll other modifications


M8 × 30 screws	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreM8 × 45 screws


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

expand_moreOil pump chain wheel

expand_more325 i (2006.6–2010.12)

expand_moreM8 × 20 screws


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

expand_more325 i with gasoline straight-6 2.5 L 201 HP engine (2006.9–2013.12)

expand_moreM8 × 20 screws


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

expand_moreAll other modifications


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_more325 i (2006.6–2010.12)

expand_moreAluminium oil sump (M8 × 112)


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

expand_moreAluminium oil sump (M8 × 26)


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

expand_moreAluminium oil sump (M8 × 92)


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

expand_moreSheet-steel sump M8 × 24 screws


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

expand_more325 i with gasoline straight-6 2.5 L 201 HP engine (2006.9–2013.12)

expand_moreM8 × 112 screws

expand_moreWith aluminium sump


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_moreM8 × 26 screws

expand_moreWith aluminium sump


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

expand_moreM8 × 36 screws

expand_moreWith aluminium sump


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

expand_moreM8 × 40 screws

expand_moreWith aluminium sump


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

expand_moreM8 × 92 screws

expand_moreWith aluminium sump


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

expand_more325 i with gasoline straight-6 2.5 L 215 HP engine (2006.9–2013.12)

expand_moreAluminium oil sump (M8 × 112)


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

expand_moreAluminium oil sump (M8 × 26)


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

expand_moreAluminium oil sump (M8 × 92)


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

expand_moreSheet-steel sump M8 × 24 screws


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

expand_more325 xi with gasoline straight-6 2.5 L 215 HP engine (2006.9–2013.12)

expand_moreAluminium oil sump (M8 × 112, M8 × 26, and M8 × 92)


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

expand_moreAluminium oil sump (M8 × 112 and M8 × 92)


Third stage	90°90°90°

expand_moreSheet-steel sump


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

expand_more330 d with diesel straight-6 3.0 L 228 HP engine (2006.9–2013.12)


M6 screws (class 10.9)	8.85 lbf⋅ft8.85 lbf⋅ft12 N⋅m
M6 8.8	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
M8 screws (class 8.8)	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m

expand_more330 xd with diesel straight-6 3.0 L 228 HP engine (2006.9–2013.12)


M6 screws (class 10.9)	8.85 lbf⋅ft8.85 lbf⋅ft12 N⋅m
M6 8.8	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_more335 i with gasoline straight-6 3.0 L 302 HP engine (2006.9–2013.12)

expand_moreM8 × 112 and M8 × 92 screws


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

expand_moreM8 × 26 screws


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

expand_moreAll other modifications


On the engine block	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreEngine management

expand_moreCamshaft sensor


All other modifications	2.95 lbf⋅ft2.95 lbf⋅ft4 N⋅m

expand_moreCrankshaft sensor


All other modifications	3.69 lbf⋅ft3.69 lbf⋅ft5 N⋅m

expand_moreGlow plugs


330 d with diesel straight-6 3.0 L 228 HP engine (2006.9–2013.12)	13.28 lbf⋅ft13.28 lbf⋅ft18 N⋅m
330 xd with diesel straight-6 3.0 L 228 HP engine (2006.9–2013.12)	13.28 lbf⋅ft13.28 lbf⋅ft18 N⋅m
335 d with diesel straight-6 3.0 L 282 HP at 4000 RPM, 560 N⋅m at 2000 RPM engine (2006.9–2013.12)	13.28 lbf⋅ft13.28 lbf⋅ft18 N⋅m
All other modifications	9.59 lbf⋅ft9.59 lbf⋅ft13 N⋅m

expand_moreKnock sensor


335 i with gasoline straight-6 3.0 L 302 HP engine (2006.9–2013.12)	15.49 lbf⋅ft15.49 lbf⋅ft21 N⋅m
335 i with gasoline straight-6 3.0 L 302 HP engine (2006.9–2013.12)	15.49 lbf⋅ft15.49 lbf⋅ft21 N⋅m

expand_moreAll other modifications

expand_moreM8 × 31 screws


First stage	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Replace screws.
Second stage	90°90°90°

expand_moreLambda sensor


M18 × 1,5 screws	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m

expand_moreEngine mounting

expand_moreEngine bracket

expand_more325 i (2006.6–2010.12)

expand_moreAluminium screws (M12)


First stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Replace screws.
Second stage	105°105°105°

expand_moreClass 8.8 screws


M10	28.03 lbf⋅ft28.03 lbf⋅ft38 N⋅m


All other modifications	28.03 lbf⋅ft28.03 lbf⋅ft38 N⋅m

expand_moreEngine mounting

expand_more325 i (2006.6–2010.12)

expand_moreAt the subframe


M10	28.03 lbf⋅ft28.03 lbf⋅ft38 N⋅m

expand_moreScrews at the crossmember (class 10.9)


M10	41.3 lbf⋅ft41.3 lbf⋅ft56 N⋅m

expand_moreOn engine bracket


M12	50.15 lbf⋅ft50.15 lbf⋅ft68 N⋅m

expand_moreAll other modifications

expand_moreAt the crossmember


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

expand_moreClass 10.9


M8	20.65 lbf⋅ft20.65 lbf⋅ft28 N⋅m

expand_moreSubframe


M12	79.66 lbf⋅ft79.66 lbf⋅ft108 N⋅m

expand_moreSubframe diagonal strut

expand_moreM10


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

expand_moreSubframe stiffening plate

expand_more325 i (2006.6–2010.12)


M8	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m

expand_moreAll other modifications

expand_moreM10


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

expand_moreExhaust system

expand_moreDiesel particulate filter

expand_moreScrews at the gearbox bracket


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_moreOn catalytic converter


Clamps	37.62 lbf⋅ft37.62 lbf⋅ft51 N⋅m

expand_moreOn primary catalytic converter


Clamps	37.62 lbf⋅ft37.62 lbf⋅ft51 N⋅m

expand_moreExhaust manifold

expand_more325 i (2006.6–2010.12)


M7	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_more325 i with gasoline straight-6 2.5 L 201 HP engine (2006.9–2013.12)


M7	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m


325 i with gasoline straight-6 2.5 L 215 HP engine (2006.9–2013.12)	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
325 xi with gasoline straight-6 2.5 L 215 HP engine (2006.9–2013.12)	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_more330 d with diesel straight-6 3.0 L 228 HP engine (2006.9–2013.12)


M8	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m


330 i with gasoline straight-6 3.0 L 255 HP engine (2006.9–2013.12)	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
330 xi with gasoline straight-6 3.0 L 255 HP engine (2006.9–2013.12)	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
335 i with gasoline straight-6 3.0 L 302 HP engine (2006.9–2013.12)	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
335 i with gasoline straight-6 3.0 L 302 HP engine (2006.9–2013.12)	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m

expand_moreAll other modifications


M7	9.59 lbf⋅ft9.59 lbf⋅ft13 N⋅m

expand_moreExhaust pipe

expand_more325 i xDrive with gasoline straight-6 2.5 L 201 HP engine (2006.9–2013.12)


Clamps	37.62 lbf⋅ft37.62 lbf⋅ft51 N⋅m

expand_moreAll other modifications

expand_moreOn exhaust manifold


M10	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_moreExhaust pipe bracket

expand_moreAll other modifications

expand_moreAt the gearbox


M8	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m

expand_moreParticle filter bracket

expand_moreScrews at the gearbox bracket


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_morePrimary catalytic converter

expand_moreAt the turbocharger


Clamps	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Use a new clamp

expand_moreOn diesel particulate filter


Clamps	37.62 lbf⋅ft37.62 lbf⋅ft51 N⋅m

expand_moreIgnition system

expand_moreSpark plugs


M12 × 1,5 screws	14.75–19.18 lbf⋅ft14.75–19.18 lbf⋅ft20–26 N⋅m
M14 × 1,5 screws	19.91–24.34 lbf⋅ft19.91–24.34 lbf⋅ft27–33 N⋅m

expand_moreStart system

expand_moreStarter

expand_more325 i (2006.6–2010.12)

expand_moreOnto crankcase (M10 × 30)


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

expand_moreOnto crankcase (M10 × 85)


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

expand_more325 i with gasoline straight-6 2.5 L 201 HP engine (2006.9–2013.12)

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°


All other modifications	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m

Please be noted that all capacities listed here are approximate. Check fluid levels when adding or refilling as recommended in your 2006 BMW 3 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 3 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 2006 BMW 3 Series Coupe you're not only saving money, but also also improving your technical skills and learning something new.

2006 BMW 3 Series Coupe generations

In 2006 BMW offered 2 generations of the 3 Series Coupe. Engine fastener tightening specifications may vary in different generations. Be sure that you are looking at the rigt modification.

Second generation LCI

E46

2006 BMW 3 Series Coupe Third generation Engine Fastener Tightening Specifications

Table of Contents

Conquer your fears and never give up!

2006 BMW 3 Series Coupe generations

Second generation LCI

BMW 3 Series Coupe Third generation model years

Suggest edit