2012 BMW 3 Series Touring engine fastener tightening specifications

in your garage to make future searches easy.

Condition	Value

expand_moreAir intake system

expand_moreIntake manifold

expand_more320 i with gasoline straight-4 2.0 L 181 HP engine (2012.6–)


M7	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m


335 i with gasoline straight-6 3.0 L 322 HP engine (2012.1–2013.7)	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
335 i xDrive with gasoline straight-6 3.0 L 322 HP engine (2012.1–2013.7)	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m

expand_moreAll other modifications


First stage	3.69 lbf⋅ft3.69 lbf⋅ft5 N⋅m
Figure 1. Air intake system, Intake manifold, All other modifications.
Second stage	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
See figure 1.

expand_moreAuxiliary assemblies

expand_moreAuxiliary drive belt deflection pulley


335 i with gasoline straight-6 3.0 L 322 HP engine (2012.1–2013.7)	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
335 i xDrive with gasoline straight-6 3.0 L 322 HP engine (2012.1–2013.7)	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m

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


All BMW gasoline straight-4 2.0 L N20 B20 A engines	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m
All BMW gasoline straight-4 2.0 L N20 B20 B engines	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m
All other modifications	28.03 lbf⋅ft28.03 lbf⋅ft38 N⋅m

expand_moreAuxiliary drive belt tensioner


All other modifications	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m

expand_moreAir-conditioning compressor


335 i with gasoline straight-6 3.0 L 322 HP engine (2012.1–2013.7)	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m
335 i xDrive with gasoline straight-6 3.0 L 322 HP engine (2012.1–2013.7)	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m
All other modifications	28.03 lbf⋅ft28.03 lbf⋅ft38 N⋅m

expand_moreAir-conditioning compressor bracket

expand_moreAll other modifications


M8	13.28 lbf⋅ft13.28 lbf⋅ft18 N⋅m

expand_moreAir-conditioning compressor pressure line


M6	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreAlternator


335 i with gasoline straight-6 3.0 L 322 HP engine (2012.1–2013.7)	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m
335 i xDrive with gasoline straight-6 3.0 L 322 HP engine (2012.1–2013.7)	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m

expand_moreAll other modifications


M10	28.03 lbf⋅ft28.03 lbf⋅ft38 N⋅m

expand_moreGenerator bracket

expand_moreAll other modifications


M8	13.28 lbf⋅ft13.28 lbf⋅ft18 N⋅m


Vacuum pump	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Replace screws.
Vacuum pump sprocket wheel	48.68 lbf⋅ft48.68 lbf⋅ft66 N⋅m
Clean and lubricate the screws.

expand_moreCarburetion

expand_moreFuel-distributing pipe


320 i with gasoline straight-4 2.0 L 181 HP engine (2012.6–)	5.16 lbf⋅ft5.16 lbf⋅ft7 N⋅m
320 i xDrive with gasoline straight-4 2.0 L 181 HP engine (2012.6–)	5.16 lbf⋅ft5.16 lbf⋅ft7 N⋅m
328 i with gasoline straight-4 2.0 L 241 HP engine (2012.6–)	5.16 lbf⋅ft5.16 lbf⋅ft7 N⋅m
328 i xDrive with gasoline straight-4 2.0 L 241 HP engine (2012.6–)	5.16 lbf⋅ft5.16 lbf⋅ft7 N⋅m
335 i with gasoline straight-6 3.0 L 322 HP engine (2012.1–2013.7)	8.85–10.33 lbf⋅ft8.85–10.33 lbf⋅ft12–14 N⋅m
335 i xDrive with gasoline straight-6 3.0 L 322 HP engine (2012.1–2013.7)	8.85–10.33 lbf⋅ft8.85–10.33 lbf⋅ft12–14 N⋅m
All other modifications	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreHigh-pressure line

expand_more320 i with gasoline straight-4 2.0 L 181 HP engine (2012.6–)


M14	19.91–24.34 lbf⋅ft19.91–24.34 lbf⋅ft27–33 N⋅m

expand_more335 i with gasoline straight-6 3.0 L 322 HP engine (2012.1–2013.7)


On high-pressure pump	19.91–24.34 lbf⋅ft19.91–24.34 lbf⋅ft27–33 N⋅m
On rail	19.91–24.34 lbf⋅ft19.91–24.34 lbf⋅ft27–33 N⋅m

expand_moreAll other modifications


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

expand_moreHigh-pressure pump

expand_more320 i with gasoline straight-4 2.0 L 181 HP engine (2012.6–)


M6	8.85 lbf⋅ft8.85 lbf⋅ft12 N⋅m
Tighten bolts uniformly in several passes.

expand_more335 i with gasoline straight-6 3.0 L 322 HP engine (2012.1–2013.7)


Manufacturer Bosch	8.11–9.59 lbf⋅ft8.11–9.59 lbf⋅ft11–13 N⋅m

expand_moreAll other modifications


M8	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m

expand_moreHigh-pressure pump pulley


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_more320 i with gasoline straight-4 2.0 L 181 HP engine (2012.6–)


M12	14.75–19.18 lbf⋅ft14.75–19.18 lbf⋅ft20–26 N⋅m

expand_more335 i with gasoline straight-6 3.0 L 322 HP engine (2012.1–2013.7)


On injector	14.75–19.18 lbf⋅ft14.75–19.18 lbf⋅ft20–26 N⋅m
On rail	14.75–19.18 lbf⋅ft14.75–19.18 lbf⋅ft20–26 N⋅m

expand_moreAll other modifications


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

expand_moreInjection nozzle (injector)


320 i with gasoline straight-4 2.0 L 181 HP engine (2012.6–)	8.11–11.06 lbf⋅ft8.11–11.06 lbf⋅ft11–15 N⋅m
320 i xDrive with gasoline straight-4 2.0 L 181 HP engine (2012.6–)	8.11–11.06 lbf⋅ft8.11–11.06 lbf⋅ft11–15 N⋅m
328 i with gasoline straight-4 2.0 L 241 HP engine (2012.6–)	8.11–11.06 lbf⋅ft8.11–11.06 lbf⋅ft11–15 N⋅m
328 i xDrive with gasoline straight-4 2.0 L 241 HP engine (2012.6–)	8.11–11.06 lbf⋅ft8.11–11.06 lbf⋅ft11–15 N⋅m

expand_more335 i with gasoline straight-6 3.0 L 322 HP engine (2012.1–2013.7)


Retaining clamp	8.85–10.33 lbf⋅ft8.85–10.33 lbf⋅ft12–14 N⋅m

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

expand_moreTurbo charger

expand_moreBMW diesel straight-6 3.0 L N57 D30 A 255 HP


Clamps	9.59 lbf⋅ft9.59 lbf⋅ft13 N⋅m

expand_moreOn the engine block


Support	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m


All other modifications	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Use hot screw paste


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

expand_moreCooling system


Coolant drain plug	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreCoolant pump

expand_more320 i with gasoline straight-4 2.0 L 181 HP engine (2012.6–)

expand_moreOnto crankcase


M8	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m


330 d with diesel straight-6 3.0 L 255 HP engine (2012.6–)	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Replace sealing rings.
330 d xDrive with diesel straight-6 3.0 L 255 HP engine (2012.6–)	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Replace sealing rings.

expand_more335 i with gasoline straight-6 3.0 L 322 HP engine (2012.1–2013.7)


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

expand_moreCylinder head

expand_moreCamshaft bearing

expand_more320 i with gasoline straight-4 2.0 L 181 HP engine (2012.6–)

expand_moreInlet camshaft


M6 × 30 screws	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreOutlet camshaft


M6 × 50 screws	8.85 lbf⋅ft8.85 lbf⋅ft12 N⋅m

expand_more330 d with diesel straight-6 3.0 L 255 HP engine (2012.6–)


Bearing cap	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
helically from the inside out

expand_moreBearing casing

Figure 2. Cylinder head, Camshaft bearing, 330 d with diesel straight-6 3.0 L 255 HP engine (2012.6–), Bearing casing.


Screws 1 – 20	9.59 lbf⋅ft9.59 lbf⋅ft13 N⋅m
See figure 2.

expand_more335 i with gasoline straight-6 3.0 L 322 HP engine (2012.1–2013.7)


Inlet camshaft	6.27 lbf⋅ft6.27 lbf⋅ft8.5 N⋅m

expand_moreOutlet camshaft

Figure 3. Cylinder head, Camshaft bearing, 335 i with gasoline straight-6 3.0 L 322 HP engine (2012.1–2013.7), Outlet camshaft.


First stage	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Note correct order of tensioning. See figure 3.
Second stage	60°60°60°

expand_moreAll other modifications


Bearing cap	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Figure 4. Cylinder head, Camshaft bearing, All other modifications.
Bearing casing	9.59 lbf⋅ft9.59 lbf⋅ft13 N⋅m
See figure 4.

expand_moreCylinder head screws

expand_more320 i with gasoline straight-4 2.0 L 181 HP engine (2012.6–)

expand_moreScrews 1 – 6

Figure 5. Cylinder head, Cylinder head screws, 320 i with gasoline straight-4 2.0 L 181 HP engine (2012.6–), Screws 1 – 6.


First stage	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Replace screws. See figure 5.
Third stage	90°90°90°
Fifth stage	180°180°180°

expand_moreScrews 7 – 10


Second stage	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Replace screws.
Fourth stage	90°90°90°
Sixth stage	180°180°180°

expand_moreScrew 11


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

expand_more330 d with diesel straight-6 3.0 L 255 HP engine (2012.6–)

expand_moreScrews 1 – 14

Figure 6. Cylinder head, Cylinder head screws, 330 d with diesel straight-6 3.0 L 255 HP engine (2012.6–), Screws 1 – 14.


First stage	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Replace screws. See figure 6.
Second stage	120°120°120°
Third stage	120°120°120°

expand_moreScrew 15


Fourth stage	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m

expand_more335 i with gasoline straight-6 3.0 L 322 HP engine (2012.1–2013.7)

expand_moreScrews 1 – 10

Figure 7. Cylinder head, Cylinder head screws, 335 i with gasoline straight-6 3.0 L 322 HP engine (2012.1–2013.7), Screws 1 – 10.


First stage	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Replace screws. See figure 7.
Third stage	90°90°90°
Fifth stage	180°180°180°

expand_moreScrews 11 – 14


Second stage	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Replace screws.
Fourth stage	90°90°90°
Sixth stage	180°180°180°

expand_moreScrews 15 – 18


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

expand_moreAll other modifications

expand_moreScrews 1 – 10

Figure 8. 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 8.
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	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m

expand_moreValve cover


BMW gasoline straight-4 2.0 L N20 B20 B 181 HP	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
See figure 9.

BMW gasoline straight-4 2.0 L N20 B20 A 241 HP	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
See figure 9.

BMW diesel straight-6 3.0 L N57 D30 A 255 HP	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
See figure 9.
Figure 10. Cylinder head, Valve cover.
BMW gasoline straight-6 3.0 L N55 B30 A 322 HP	6.27 lbf⋅ft6.27 lbf⋅ft8.5 N⋅m
Note correct order of tensioning. See figure 10.

expand_moreAll other modifications


M6	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreEngine block

expand_moreBalance shaft gear wheel

expand_more320 i with gasoline straight-4 2.0 L 181 HP engine (2012.6–)

expand_moreM10 central screws


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Use new screw.
Second stage	70.07 lbf⋅ft70.07 lbf⋅ft95 N⋅m

expand_moreAll other modifications


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

expand_moreBalance shaft module


M6 × 25 screws	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreM8 × 40 screws


First stage	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m
Second stage	90°90°90°

expand_moreM8 × 75 screws


First stage	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m
Second stage	90°90°90°

expand_moreConnecting rod bearing

expand_more320 i with gasoline straight-4 2.0 L 181 HP engine (2012.6–)


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Replace screw, wash and slightly oil.
Second stage	140°140°140°

expand_more335 i with gasoline straight-6 3.0 L 322 HP engine (2012.1–2013.7)


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Replace screws.
Second stage	140°140°140°

expand_moreAll other modifications


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Replace, wash and lubricate the screws.
Second stage	70°70°70°

expand_moreCrankshaft central screws

expand_moreAll BMW gasoline straight-4 2.0 L N20 B20 B engines

expand_moreM18


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

expand_moreAll other modifications

expand_moreCentral screws


First stage	73.76 lbf⋅ft73.76 lbf⋅ft100 N⋅m
Replace and lightly oil the screw.
Second stage	270°270°270°

expand_moreDrive plate

expand_more320 i with gasoline straight-4 2.0 L 181 HP engine (2012.6–)


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

expand_more335 i with gasoline straight-6 3.0 L 322 HP engine (2012.1–2013.7)


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


All other modifications	88.51 lbf⋅ft88.51 lbf⋅ft120 N⋅m
Replace screws.

expand_moreFlywheel

expand_more320 i with gasoline straight-4 2.0 L 181 HP engine (2012.6–)


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

expand_more335 i with gasoline straight-6 3.0 L 322 HP engine (2012.1–2013.7)


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


All other modifications	88.51 lbf⋅ft88.51 lbf⋅ft120 N⋅m
Replace screws.

expand_moreMain bearing

expand_more320 i with gasoline straight-4 2.0 L 181 HP engine (2012.6–)

expand_moreScrews 1 – 10

Figure 11. Engine block, Main bearing, 320 i with gasoline straight-4 2.0 L 181 HP engine (2012.6–), Screws 1 – 10.


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Replace screws. See figure 11.
Second stage	90°90°90°

expand_moreScrews 11 – 30


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

expand_more330 d with diesel straight-6 3.0 L 255 HP engine (2012.6–)


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_more335 i with gasoline straight-6 3.0 L 322 HP engine (2012.1–2013.7)

expand_moreScrews 1 – 14 (M10 × 100)

Figure 12. Engine block, Main bearing, 335 i with gasoline straight-6 3.0 L 322 HP engine (2012.1–2013.7), Screws 1 – 14 (M10 × 100).


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Replace screws. See figure 12.
Second stage	70°70°70°

expand_moreM10 × 27 screw 15


Third stage	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
Replace screws.
Fourth stage	90°90°90°

expand_moreM10 × 41 screw 15


Third stage	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
Replace screws.
Fourth stage	90°90°90°

expand_moreScrew 15 (M8 × 37)


Third stage	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Replace screws.
Fourth 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_more320 i with gasoline straight-4 2.0 L 181 HP engine (2012.6–)


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

expand_more335 i with gasoline straight-6 3.0 L 322 HP engine (2012.1–2013.7)


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 N20 B20 B 181 HP

expand_moreAt the cylinder head


M7	10.33 lbf⋅ft10.33 lbf⋅ft14 N⋅m

expand_moreM18


Cap	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreM22


Cap	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Replace the cover plate.

expand_moreOn the engine block


M8	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreBMW gasoline straight-6 3.0 L N55 B30 A 322 HP

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_moreAll other modifications


M8	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreCamshaft timing chain slip rail

expand_moreAll BMW gasoline straight-4 2.0 L N20 B20 B engines

expand_moreAt the cylinder head


M6	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreAll other modifications


At the cylinder head	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreCamshaft timing chain tensioner


BMW gasoline straight-4 2.0 L N20 B20 B 181 HP	59 lbf⋅ft59 lbf⋅ft80 N⋅m
BMW gasoline straight-4 2.0 L N20 B20 A 241 HP	59 lbf⋅ft59 lbf⋅ft80 N⋅m
BMW gasoline straight-6 3.0 L N55 B30 A 322 HP	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m
Replace sealing rings.

expand_moreAll other modifications


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

expand_moreCamshaft timing chain tensioning rail

expand_more320 i with gasoline straight-4 2.0 L 181 HP engine (2012.6–)

expand_moreM22


Cap	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Replace the cover plate.

expand_moreOn the engine block


M8	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_more335 i with gasoline straight-6 3.0 L 322 HP engine (2012.1–2013.7)

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
Replace the cover plate.


All other modifications	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreCamshaft timing gear


M7	10.33 lbf⋅ft10.33 lbf⋅ft14 N⋅m

expand_moreChain tensioner


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

expand_moreControl drive chain tensioner


M6	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreControl drive chain tensioning rail


330 d with diesel straight-6 3.0 L 255 HP engine (2012.6–)	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
330 d xDrive with diesel straight-6 3.0 L 255 HP engine (2012.6–)	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All other modifications	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m


Control drive timing chain slip rail	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreEccentric shaft for intake valve timing

expand_moreAll other modifications


M6	6.27 lbf⋅ft6.27 lbf⋅ft8.5 N⋅m

expand_moreInlet camshaft wheel

expand_moreAll BMW gasoline straight-4 2.0 L N20 B20 B engines

expand_moreCentral screws


First stage	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m
Second stage	55°55°55°

expand_moreAll other modifications

expand_moreCentral screws


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


Intermediate shaft chain sprocket	51.63 lbf⋅ft51.63 lbf⋅ft70 N⋅m
Replace nuts.

expand_moreOil pump camshaft timing chain guide rail

expand_moreM16 × 1,5 screws


Cap	19.91 lbf⋅ft19.91 lbf⋅ft27 N⋅m
Replace the cover plate.

expand_moreM6 × 16 screws


First stage	2.95 lbf⋅ft2.95 lbf⋅ft4 N⋅m
Replace screws.
Second stage	45°45°45°


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

expand_moreOutlet camshaft wheel

expand_moreAll BMW gasoline straight-4 2.0 L N20 B20 B engines

expand_moreCentral screws


First stage	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m
Second stage	55°55°55°

expand_moreAll other modifications

expand_moreCentral screws


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

expand_moreTiming case cover

expand_moreOn the engine block


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

expand_moreOn timing case cover


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

expand_moreEngine lubrication

expand_moreOil cooler


335 i with gasoline straight-6 3.0 L 322 HP engine (2012.1–2013.7)	11.8 lbf⋅ft11.8 lbf⋅ft16 N⋅m
335 i xDrive with gasoline straight-6 3.0 L 322 HP engine (2012.1–2013.7)	11.8 lbf⋅ft11.8 lbf⋅ft16 N⋅m
All other modifications	4.43 lbf⋅ft4.43 lbf⋅ft6 N⋅m

expand_moreOil drain plug


320 i with gasoline straight-4 2.0 L 181 HP engine (2012.6–)	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Replace plastic screw.
All other modifications	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Replace sealing rings.

expand_moreOil filter housing

expand_more320 i with gasoline straight-4 2.0 L 181 HP engine (2012.6–)


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_more330 d with diesel straight-6 3.0 L 255 HP engine (2012.6–)


Oil filter cover	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Replace sealing rings.
On the engine block	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_more335 i with gasoline straight-6 3.0 L 322 HP engine (2012.1–2013.7)


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_moreAll other modifications


Oil filter cover	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
On the engine block	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m

expand_moreOil pump

expand_more320 i with gasoline straight-4 2.0 L 181 HP engine (2012.6–)

Figure 13. Engine lubrication, Oil pump, 320 i with gasoline straight-4 2.0 L 181 HP engine (2012.6–).


M6 × 70 screws	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
See figure 13.

expand_more330 d with diesel straight-6 3.0 L 255 HP engine (2012.6–)


On the engine block	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m
Replace screws.

expand_more335 i with gasoline straight-6 3.0 L 322 HP engine (2012.1–2013.7)

expand_moreScrews (M8 × 123)


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

expand_moreScrews (M8 × 31)


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

expand_moreScrews (M8 × 37)


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_more320 i with gasoline straight-4 2.0 L 181 HP engine (2012.6–)

expand_moreM10 central screws


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Use new screw.
Second stage	70.07 lbf⋅ft70.07 lbf⋅ft95 N⋅m

expand_more330 d with diesel straight-6 3.0 L 255 HP engine (2012.6–)


First stage	3.69 lbf⋅ft3.69 lbf⋅ft5 N⋅m
Left-hand thread
Second stage	50°50°50°

expand_more335 i with gasoline straight-6 3.0 L 322 HP engine (2012.1–2013.7)


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_more320 i with gasoline straight-4 2.0 L 181 HP engine (2012.6–)

expand_morePlastic oil sump


M6 × 25 screws	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_more320 i xDrive with gasoline straight-4 2.0 L 181 HP engine (2012.6–)


With aluminium sump	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_more330 d with diesel straight-6 3.0 L 255 HP engine (2012.6–)


On the engine block	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m

expand_more335 i with gasoline straight-6 3.0 L 322 HP engine (2012.1–2013.7)

expand_moreScrews (M8 × 112)


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

expand_moreScrews (M8 × 26)


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

expand_moreScrews (M8 × 50)


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

expand_moreScrews (M8 × 92)


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

expand_more335 i xDrive with gasoline straight-6 3.0 L 322 HP engine (2012.1–2013.7)

expand_moreM8 × 36 screws


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


M8 × 50 screws	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m
Replace screws.

expand_moreAll other modifications


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

expand_moreEngine management

expand_moreCamshaft sensor


320 i with gasoline straight-4 2.0 L 181 HP engine (2012.6–)	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
320 i xDrive with gasoline straight-4 2.0 L 181 HP engine (2012.6–)	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
328 i with gasoline straight-4 2.0 L 241 HP engine (2012.6–)	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
328 i xDrive with gasoline straight-4 2.0 L 241 HP engine (2012.6–)	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
335 i with gasoline straight-6 3.0 L 322 HP engine (2012.1–2013.7)	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
335 i xDrive with gasoline straight-6 3.0 L 322 HP engine (2012.1–2013.7)	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
All other modifications	2.95 lbf⋅ft2.95 lbf⋅ft4 N⋅m

expand_moreCrankshaft sensor


320 i with gasoline straight-4 2.0 L 181 HP engine (2012.6–)	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
320 i xDrive with gasoline straight-4 2.0 L 181 HP engine (2012.6–)	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
328 i with gasoline straight-4 2.0 L 241 HP engine (2012.6–)	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
328 i xDrive with gasoline straight-4 2.0 L 241 HP engine (2012.6–)	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
All other modifications	3.69 lbf⋅ft3.69 lbf⋅ft5 N⋅m


Exhaust gas temperature sensor	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Glow plugs	9.59 lbf⋅ft9.59 lbf⋅ft13 N⋅m

expand_moreKnock sensor


All other modifications	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m


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

expand_moreEngine mounting

expand_moreEngine bracket

expand_more335 i with gasoline straight-6 3.0 L 322 HP engine (2012.1–2013.7)


M12 screws (class 8.8)	48.68 lbf⋅ft48.68 lbf⋅ft66 N⋅m

expand_moreAll other modifications

expand_moreOn the engine block


M10	28.03 lbf⋅ft28.03 lbf⋅ft38 N⋅m

expand_moreEngine mounting

expand_more320 i with gasoline straight-4 2.0 L 181 HP engine (2012.6–)


At the subframe	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m
On engine bracket	41.3 lbf⋅ft41.3 lbf⋅ft56 N⋅m

expand_more330 d with diesel straight-6 3.0 L 255 HP engine (2012.6–)

expand_moreOn engine bracket


M10	41.3 lbf⋅ft41.3 lbf⋅ft56 N⋅m
M12	73.76 lbf⋅ft73.76 lbf⋅ft100 N⋅m


Subframe	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m

expand_more335 i with gasoline straight-6 3.0 L 322 HP engine (2012.1–2013.7)


At the subframe	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m
On engine bracket	41.3 lbf⋅ft41.3 lbf⋅ft56 N⋅m

expand_moreAll other modifications


At the subframe	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m
On engine bracket	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m

expand_moreSubframe

expand_moreOn chassis


M12	88.51 lbf⋅ft88.51 lbf⋅ft120 N⋅m
M14	88.51 lbf⋅ft88.51 lbf⋅ft120 N⋅m

expand_moreSubframe diagonal strut

expand_moreM12


First stage	73.76 lbf⋅ft73.76 lbf⋅ft100 N⋅m
Use new screws.
Second stage	90°90°90°


M8	15.49 lbf⋅ft15.49 lbf⋅ft21 N⋅m

expand_moreSubframe stiffening plate

expand_moreAt the subframe


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_more328 i xDrive with gasoline straight-4 2.0 L 241 HP engine (2012.6–)


M10	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_moreAll other modifications


Clamps	9.59 lbf⋅ft9.59 lbf⋅ft13 N⋅m
Use new parts.

expand_moreCatalytic converter bracket

expand_more320 i xDrive with gasoline straight-4 2.0 L 181 HP engine (2012.6–)

expand_moreAt the gearbox


M10	41.3 lbf⋅ft41.3 lbf⋅ft56 N⋅m


Otherwise	20.65 lbf⋅ft20.65 lbf⋅ft28 N⋅m

expand_moreAll other modifications


M8	20.65 lbf⋅ft20.65 lbf⋅ft28 N⋅m

expand_moreDiesel particulate filter

expand_more320 d with diesel straight-4 2.0 L 161 HP engine (2012.6–)


Clamps	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m

expand_moreAll other modifications

expand_moreAt the turbocharger


Clamps	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
Replace clamps.

expand_moreExhaust manifold

expand_more320 i with gasoline straight-4 2.0 L 181 HP engine (2012.6–)

Figure 14. Exhaust system, Exhaust manifold, 320 i with gasoline straight-4 2.0 L 181 HP engine (2012.6–).


First stage	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Replace nuts. See figure 14.
Second stage	9.59 lbf⋅ft9.59 lbf⋅ft13 N⋅m

expand_more335 i with gasoline straight-6 3.0 L 322 HP engine (2012.1–2013.7)

expand_moreAt the cylinder head

Figure 15. Exhaust system, Exhaust manifold, 335 i with gasoline straight-6 3.0 L 322 HP engine (2012.1–2013.7), At the cylinder head.


First stage	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Replace nuts. See figure 15.
Second stage	9.59 lbf⋅ft9.59 lbf⋅ft13 N⋅m

expand_moreOn exhaust manifold


Support	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreOn the engine block


Support	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Replace screws.

expand_moreAll other modifications


M7	9.59 lbf⋅ft9.59 lbf⋅ft13 N⋅m

expand_moreExhaust pipe

expand_more318 d with diesel straight-4 2.0 L 134 HP engine (2012.6–)

expand_moreClamps


M8	17.7–19.18 lbf⋅ft17.7–19.18 lbf⋅ft24–26 N⋅m

expand_more320 d xDrive with diesel straight-4 2.0 L 161 HP engine (2012.6–)

expand_moreOn particle filter


Clamps	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m

expand_more320 d xDrive with diesel straight-4 2.0 L 181 HP engine (2012.6–2015.7)

expand_moreOn particle filter


Clamps	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m


320 i xDrive with gasoline straight-4 2.0 L 181 HP engine (2012.6–)	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m
328 i xDrive with gasoline straight-4 2.0 L 241 HP engine (2012.6–)	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_more335 i with gasoline straight-6 3.0 L 322 HP engine (2012.1–2013.7)

expand_moreAt the middle silencer


Clamps	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_moreOn catalytic converter


Clamps	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m

expand_moreExhaust pipe bracket

expand_more320 d xDrive with diesel straight-4 2.0 L 161 HP engine (2012.6–)

expand_moreOn chassis


M8	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m

expand_more320 d xDrive with diesel straight-4 2.0 L 181 HP engine (2012.6–2015.7)

expand_moreOn chassis


M8	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m

expand_more335 i with gasoline straight-6 3.0 L 322 HP engine (2012.1–2013.7)

expand_moreAt the gearbox


M8	20.65 lbf⋅ft20.65 lbf⋅ft28 N⋅m

expand_moreOn chassis


M8	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m

expand_moreAll other modifications


M8	15.49 lbf⋅ft15.49 lbf⋅ft21 N⋅m

expand_moreParticle filter bracket


M12	28.03 lbf⋅ft28.03 lbf⋅ft38 N⋅m
M8	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m

expand_moreIgnition system

expand_moreSpark plugs

expand_moreAll BMW gasoline straight-4 2.0 L N20 B20 B engines


M12	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
M14	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m

expand_moreAll other modifications


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_more320 i with gasoline straight-4 2.0 L 181 HP engine (2012.6–)

expand_moreOnto crankcase


M10	28.03 lbf⋅ft28.03 lbf⋅ft38 N⋅m


335 i with gasoline straight-6 3.0 L 322 HP engine (2012.1–2013.7)	28.03 lbf⋅ft28.03 lbf⋅ft38 N⋅m
335 i xDrive with gasoline straight-6 3.0 L 322 HP engine (2012.1–2013.7)	28.03 lbf⋅ft28.03 lbf⋅ft38 N⋅m

expand_moreAll other modifications


M8	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 2012 BMW 3 Series Touring 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 Touring 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 2012 BMW 3 Series Touring you're not only saving money, but also also improving your technical skills and learning something new.

2012 BMW 3 Series Touring generations

In 2012 BMW offered 2 generations of the 3 Series Touring. Engine fastener tightening specifications may vary in different generations. Be sure that you are looking at the rigt modification.

Fourth generation LCI

E91

2012 BMW 3 Series Touring Fifth generation Engine Fastener Tightening Specifications

Table of Contents

Conquer your fears and never give up!

2012 BMW 3 Series Touring generations

Fourth generation LCI

BMW 3 Series Touring Fifth generation model years

Suggest edit