2006 BMW 3 Series Convertible engine fastener tightening specifications

in your garage to make future searches easy.

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


Onto crankcase	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m

expand_moreCarburetion

expand_moreHigh-pressure pump pulley

expand_more330 Cd with diesel straight-6 3.0 L 201 HP at 4000 RPM, 410 N⋅m at 1500 RPM engine (2005.8–2007.12)


M14 × 1,5 screws	47.94 lbf⋅ft47.94 lbf⋅ft65 N⋅m
Use new screws.

expand_moreCharging

expand_moreTurbo charger

expand_moreAll BMW diesel straight-4 2.0 L M47 D20 (204D4) engines


On exhaust manifold	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Use hot screw paste

expand_moreAll BMW diesel straight-6 3.0 L M57 D30 (306D2) engines

expand_moreOn exhaust manifold


M10	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m


Turbocharger oil feed line	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Replace sealing rings.

expand_moreCylinder head

expand_moreCamshaft bearing


M6	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
M7	10.33 lbf⋅ft10.33 lbf⋅ft14 N⋅m
M8	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreCylinder head screws

expand_moreBMW gasoline straight-4 2.0 L N46 B20 A 141 HP

Figure 1. Cylinder head, Cylinder head screws, BMW gasoline straight-4 2.0 L N46 B20 A 141 HP.


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

expand_moreBMW diesel straight-4 2.0 L M47 D20 (204D4) 148 HP


First stage	59 lbf⋅ft59 lbf⋅ft80 N⋅m
See figure 1.
Second stage	slacken
Third stage	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Fourth stage	90°90°90°
Fifth stage	90°90°90°

expand_moreBMW gasoline straight-4 2.0 L N46 B20 B 148 HP


First stage	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Replace and lightly oil the screw. See figure 1.
Second stage	90°90°90°
Third stage	90°90°90°

expand_moreBMW gasoline straight-6 2.2 L M54 B22 (226S1) 168 HP

Figure 2. Cylinder head, Cylinder head screws, BMW gasoline straight-6 2.2 L M54 B22 (226S1) 168 HP.


First stage	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
Use new screws, and oil the screws. See figure 2.
Second stage	90°90°90°
Third stage	90°90°90°

expand_moreBMW gasoline straight-6 2.5 L M54 B25 (256S5) 189 HP


First stage	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
See figure 2.
Second stage	90°90°90°
Third stage	90°90°90°

expand_moreValve cover


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

expand_moreEngine block

expand_moreConnecting rod bearing


First stage	3.69 lbf⋅ft3.69 lbf⋅ft5 N⋅m
Replace screw, wash and slightly oil.
Second stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Third stage	70°70°70°

expand_moreCrankshaft central screws


BMW gasoline straight-6 2.2 L M54 B22 (226S1) 168 HP	302.4 lbf⋅ft302.4 lbf⋅ft410 N⋅m
Replace bolt.
BMW gasoline straight-6 2.5 L M54 B25 (256S5) 189 HP	302.4 lbf⋅ft302.4 lbf⋅ft410 N⋅m
Replace bolt.
BMW gasoline straight-6 3.0 L M54 B30 (306S3) 228 HP	302.4 lbf⋅ft302.4 lbf⋅ft410 N⋅m
Replace bolt.

expand_moreAll other modifications


First stage	73.76 lbf⋅ft73.76 lbf⋅ft100 N⋅m
Second stage	60°60°60°
Third stage	60°60°60°
Fourth stage	30°30°30°


Drive plate	88.51 lbf⋅ft88.51 lbf⋅ft120 N⋅m
Replace screws.

expand_moreFlywheel


BMW gasoline straight-4 2.0 L N46 B20 A 141 HP	95.88 lbf⋅ft95.88 lbf⋅ft130 N⋅m
Replace screws.
BMW gasoline straight-4 2.0 L N42 B20 A 141 HP at 6200 RPM, 200 N⋅m at 3600 RPM	95.88 lbf⋅ft95.88 lbf⋅ft130 N⋅m
Replace screws.
BMW diesel straight-4 2.0 L M47 D20 (204D4) 148 HP	95.88 lbf⋅ft95.88 lbf⋅ft130 N⋅m
Replace screws.
BMW gasoline straight-4 2.0 L N46 B20 A 148 HP	95.88 lbf⋅ft95.88 lbf⋅ft130 N⋅m
Replace screws.
BMW gasoline straight-4 2.0 L N46 B20 B 148 HP	95.88 lbf⋅ft95.88 lbf⋅ft130 N⋅m
Replace screws.
All other modifications	77.44 lbf⋅ft77.44 lbf⋅ft105 N⋅m
Replace screws.

expand_moreMain bearing

expand_moreBMW gasoline straight-4 2.0 L N46 B20 A 141 HP


First stage	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
Clean and lubricate the screws.
Second stage	90°90°90°

expand_moreBMW diesel straight-4 2.0 L M47 D20 (204D4) 148 HP


First stage	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
Clean and lubricate the screws.
Second stage	90°90°90°

expand_moreAll other modifications


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

expand_moreVibration damper

expand_more330 Cd with diesel straight-6 3.0 L 201 HP at 4000 RPM, 410 N⋅m at 1500 RPM engine (2005.8–2007.12)


First stage	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
Replace screws.
Second stage	60°60°60°
Third stage	60°60°60°

expand_moreEngine control

expand_moreCamshaft timing chain slip rail

expand_more320 Cd with diesel straight-4 2.0 L 148 HP engine (2005.2–2007.12)


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

expand_moreCamshaft timing chain tensioning rail

expand_more320 Cd with diesel straight-4 2.0 L 148 HP engine (2005.2–2007.12)


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

expand_moreCamshaft timing gear

expand_moreBMW diesel straight-4 2.0 L M47 D20 (204D4) 148 HP


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Second stage	50°50°50°

expand_moreBMW diesel straight-6 3.0 L M57 D30 (306D2) 201 HP at 4000 RPM, 410 N⋅m at 1500 RPM

expand_moreM57 engine M12 × 1,5 screws


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Replace screws and nuts.
Second stage	35°35°35°

expand_moreEngine code M57 D30 TU


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Replace screws and nuts.
Second stage	50°50°50°
M7 × 18 screws	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m

expand_moreAll other modifications


First stage	3.69 lbf⋅ft3.69 lbf⋅ft5 N⋅m
Second stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreCentral part of control unit housing

expand_more330 Cd with diesel straight-6 3.0 L 201 HP at 4000 RPM, 410 N⋅m at 1500 RPM engine (2005.8–2007.12)

expand_moreM57 engine M30 × 1 screws


Locking screws	51.63 lbf⋅ft51.63 lbf⋅ft70 N⋅m

expand_moreEngine code M57 D30 TU (M40 × 1,5)


Locking screws	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m

expand_moreChain tensioner


BMW gasoline straight-6 2.2 L M54 B22 (226S1) 168 HP	51.63 lbf⋅ft51.63 lbf⋅ft70 N⋅m
BMW gasoline straight-6 2.5 L M54 B25 (256S5) 189 HP	51.63 lbf⋅ft51.63 lbf⋅ft70 N⋅m

expand_moreBMW diesel straight-6 3.0 L M57 D30 (306D2) 201 HP at 4000 RPM, 410 N⋅m at 1500 RPM


Chain tensioner	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m


BMW gasoline straight-6 3.0 L M54 B30 (306S3) 228 HP	51.63 lbf⋅ft51.63 lbf⋅ft70 N⋅m

expand_moreAll other modifications


Cap	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
Chain tensioner	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m

expand_moreChain tensioner locking screws

expand_more330 Cd with diesel straight-6 3.0 L 201 HP at 4000 RPM, 410 N⋅m at 1500 RPM engine (2005.8–2007.12)


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_moreInlet camshaft wheel


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Use new screw.
Second stage	90°90°90°
Third stage	90°90°90°

expand_moreOutlet camshaft wheel


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Use new screw.
Second stage	90°90°90°
Third stage	90°90°90°

expand_moreTiming case cover

expand_moreAll BMW diesel straight-4 2.0 L M47 D20 (204D4) engines


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

expand_moreAll BMW diesel straight-6 3.0 L M57 D30 (306D2) engines


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_moreEngine lubrication


Oil drain plug	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Oil filter housing	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Oil pump chain wheel	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m

expand_moreOil sump

expand_moreBMW gasoline straight-6 2.2 L M54 B22 (226S1) 168 HP


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_moreBMW diesel straight-6 3.0 L M57 D30 (306D2) 201 HP at 4000 RPM, 410 N⋅m at 1500 RPM


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_moreAll other modifications


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	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m

expand_moreEngine management


Glow plugs	13.28 lbf⋅ft13.28 lbf⋅ft18 N⋅m
Knock sensor	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Lambda sensor	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m

expand_moreExhaust system

expand_moreExhaust manifold

expand_moreBMW gasoline straight-4 2.0 L N46 B20 B 148 HP


M6	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Replace nuts.
M7	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
Replace nuts.
M8	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
Replace nuts.

expand_moreAll other modifications


M6	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Replace nuts.
M7	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
Replace nuts.
M8	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
Replace nuts.

expand_moreIgnition system

expand_moreSpark plugs

expand_moreBMW gasoline straight-4 2.0 L N46 B20 A 141 HP


M12 × 1,25 screws	14.75–19.18 lbf⋅ft14.75–19.18 lbf⋅ft20–26 N⋅m
M14 × 1,25 screws	19.91–24.34 lbf⋅ft19.91–24.34 lbf⋅ft27–33 N⋅m

expand_moreBMW gasoline straight-4 2.0 L N46 B20 B 148 HP


M12 × 1,25 screws	14.75–19.18 lbf⋅ft14.75–19.18 lbf⋅ft20–26 N⋅m
M14 × 1,25 screws	19.91–24.34 lbf⋅ft19.91–24.34 lbf⋅ft27–33 N⋅m


All other modifications	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m

expand_moreStart system

expand_moreStarter


Onto crankcase	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 2006 BMW 3 Series Convertible 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 Convertible 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 Convertible you're not only saving money, but also also improving your technical skills and learning something new.

2006 BMW 3 Series Convertible generations

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

Fifth generation

E93

2006 BMW 3 Series Convertible Fourth generation LCI Engine Fastener Tightening Specifications

Table of Contents

Conquer your fears and never give up!

2006 BMW 3 Series Convertible generations

Fifth generation

BMW 3 Series Convertible Fourth generation LCI model years

Suggest edit