2003 BMW 7 Series engine fastener tightening specifications

in your garage to make future searches easy.

Condition	Value

expand_moreAir intake system

expand_moreIntake manifold

expand_moreBMW diesel V8 3.9 L M67 D39 (398D1) 255 HP


M7	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_moreAir-conditioning compressor


At the bracket	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m
M8


Air-conditioning compressor pressure line	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreAlternator

expand_moreBMW diesel straight-6 3.0 L M57 D30 (306D3) 208 HP

expand_moreOnto crankcase


M10	28.03 lbf⋅ft28.03 lbf⋅ft38 N⋅m


All other modifications	15.49 lbf⋅ft15.49 lbf⋅ft21 N⋅m

expand_moreAlternator pulley


With freewheel	59 lbf⋅ft59 lbf⋅ft80 N⋅m
Otherwise	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_moreHydraulic lines at the servo-steering pump

expand_moreBMW diesel straight-6 3.0 L M57 D30 (306D3) 208 HP


M14	24.34 lbf⋅ft24.34 lbf⋅ft33 N⋅m
M16	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m

expand_moreAll other modifications

expand_moreBanjo screws


M14	24.34 lbf⋅ft24.34 lbf⋅ft33 N⋅m
Replace sealing rings
M16	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
Replace sealing rings


M14	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
Replace sealing rings

expand_moreServo pump pulley


M8 screws (class 8.8)	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m

expand_moreServo steering pump

expand_moreBMW diesel straight-6 3.0 L M57 D30 (306D3) 208 HP


M6	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
M8	15.49 lbf⋅ft15.49 lbf⋅ft21 N⋅m

expand_moreAll other modifications

expand_moreM10

expand_moreAt the bracket


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

expand_moreM8


At the bracket	15.49 lbf⋅ft15.49 lbf⋅ft21 N⋅m

expand_moreVacuum pump


M8	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m

expand_moreCarburetion


Exhaust gas return valve	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreExhaust recirculation pipe

expand_moreBMW diesel V8 3.9 L M67 D39 (398D1) 255 HP


With EGR cooler	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreAll other modifications


On exhaust manifold	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
On intake manifold	3.69 lbf⋅ft3.69 lbf⋅ft5 N⋅m


High-pressure line	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m

expand_moreHigh-pressure pump pulley

expand_more730 d with diesel straight-6 3.0 L 215 HP engine (2002.10–2008.7)

expand_moreM14 × 1,5 screws


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

expand_moreM40 × 1,5 screws


Cap	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m

expand_moreInjection hoses


Union nuts	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreInjection nozzle (injector)

expand_moreBMW diesel V8 3.9 L M67 D39 (398D1) 255 HP


M8	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m

expand_moreAll other modifications


First stage	8.85 lbf⋅in8.85 lbf⋅in1 N⋅m
Second stage	2.95 lbf⋅ft2.95 lbf⋅ft4 N⋅m
Third stage	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m

expand_moreCharging


Charge air pipes	4.43 lbf⋅ft4.43 lbf⋅ft6 N⋅m

expand_moreTurbo charger

expand_moreBMW diesel straight-6 3.0 L M57 D30 (306D3) 208 HP

expand_moreClamps


First stage	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Second stage	Loosen screw
Third stage	2.21 lbf⋅ft2.21 lbf⋅ft3 N⋅m
Control tensioner


BMW diesel V8 3.9 L M67 D39 (398D1) 255 HP	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m

expand_moreTurbocharger oil feed line


Banjo screws	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Union nuts	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m

expand_moreTurbocharger oil return line

expand_moreBMW diesel V8 3.9 L M67 D39 (398D1) 255 HP


Clamps	2.21 lbf⋅ft2.21 lbf⋅ft3 N⋅m

expand_moreAll other modifications


Clamps	2.21 lbf⋅ft2.21 lbf⋅ft3 N⋅m
M16	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m

expand_moreCooling system

expand_moreCoolant drain plug

expand_moreOnto crankcase


M14	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Replace sealing rings.

expand_moreCoolant pump


730 d with diesel straight-6 3.0 L 208 HP engine (2002.10–2008.7)	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
730 d with diesel straight-6 3.0 L 215 HP engine (2002.10–2008.7)	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m

expand_moreAll other modifications

expand_moreOnto crankcase


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


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_moreViscous fan clutch


BMW gasoline straight-6 3.0 L M54 B30 (306S3) 228 HP	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m
Left-hand thread
BMW diesel V8 3.9 L M67 D39 (398D1) 255 HP	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m

expand_moreCylinder head

expand_moreCamshaft bearing

expand_moreAll other modifications

expand_moreM6


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

expand_moreM7


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

expand_moreM8


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

expand_moreCylinder head screws

expand_more730 d with diesel straight-6 3.0 L 208 HP engine (2002.10–2008.7)

Figure 1. Cylinder head, Cylinder head screws, 730 d with diesel straight-6 3.0 L 208 HP engine (2002.10–2008.7).


First stage	59 lbf⋅ft59 lbf⋅ft80 N⋅m
Replace screws. See figure 1.
Second stage	slacken
Loosen all screws at least 180° from outside to inside.
Third stage	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Fourth stage	90°90°90°
Fifth stage	90°90°90°

expand_more730 i,Li with gasoline straight-6 3.0 L 228 HP engine (2003.3–2008.7)

Figure 2. Cylinder head, Cylinder head screws, 730 i,Li with gasoline straight-6 3.0 L 228 HP engine (2003.3–2008.7).


First stage	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
Replace, wash and lubricate the screws. See figure 2.
Second stage	90°90°90°
Third stage	90°90°90°

expand_more740 d with diesel V8 3.9 L 255 HP engine (2002.10–2005.2)

Figure 3. Cylinder head, Cylinder head screws, 740 d with diesel V8 3.9 L 255 HP engine (2002.10–2005.2).


First stage	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
See figure 3.
Second stage	loosen by 180°
Third stage	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Fourth stage	90°90°90°
Fifth stage	90°90°90°

expand_more745 i,Li with gasoline V8 4.4 L 329 HP engine (2001.11–2008.7)

Figure 4. Cylinder head, Cylinder head screws, 745 i,Li with gasoline V8 4.4 L 329 HP engine (2001.11–2008.7).


First stage	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Replace screws. See figure 4.
Second stage	90°90°90°
Third stage	90°90°90°

expand_moreAll other modifications

Figure 5. Cylinder head, Cylinder head screws, All other modifications.


First stage	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
See figure 5.
Second stage	90°90°90°
Third stage	90°90°90°

expand_moreValve cover

expand_moreAll other modifications


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

expand_moreEngine block

expand_moreConnecting rod bearing

expand_more740 d with diesel V8 3.9 L 255 HP engine (2002.10–2005.2)


First stage	3.69 lbf⋅ft3.69 lbf⋅ft5 N⋅m
Replace the screws, do not wash off the coating.
Second stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Third stage	62.69 lbf⋅ft62.69 lbf⋅ft85 N⋅m

expand_moreAll other modifications


First stage	3.69 lbf⋅ft3.69 lbf⋅ft5 N⋅m
Replace, wash and lightly lubricate the screws.
Second stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Third stage	70°70°70°

expand_moreCrankshaft central screws


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
Replace the screw, grease the head support.
Second stage	60°60°60°
Third stage	60°60°60°
Fourth stage	60°60°60°

expand_moreCrankshaft pulley


735 i,Li with gasoline V8 3.6 L 268 HP at 6200 RPM, 360 N⋅m at 3700 RPM engine (2001.11–2005.2)	25.08 lbf⋅ft25.08 lbf⋅ft34 N⋅m

expand_moreAll other modifications


M8	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m

expand_moreDrive plate


All other modifications	89.25 lbf⋅ft89.25 lbf⋅ft121 N⋅m
Replace screws.

expand_moreEngine block closure screws


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


740 d with diesel V8 3.9 L 255 HP engine (2002.10–2005.2)	89.25 lbf⋅ft89.25 lbf⋅ft121 N⋅m
Replace screws.
All other modifications	77.44 lbf⋅ft77.44 lbf⋅ft105 N⋅m
Replace screws.

expand_moreMain bearing

expand_more730 d with diesel straight-6 3.0 L 208 HP engine (2002.10–2008.7)

expand_moreM10


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

expand_more730 i,Li with gasoline straight-6 3.0 L 228 HP engine (2003.3–2008.7)

expand_moreAluminium engine block


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

expand_moreGrey cast-iron engine block


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

expand_more735 i,Li with gasoline V8 3.6 L 268 HP at 6200 RPM, 360 N⋅m at 3700 RPM engine (2001.11–2005.2)


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Replace the screws, do not wash off the coating.
Second stage	100°100°100°

expand_more740 d with diesel V8 3.9 L 255 HP engine (2002.10–2005.2)


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Second stage	200°200°200°

expand_more745 i,Li with gasoline V8 4.4 L 329 HP engine (2001.11–2008.7)


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Replace the screws, do not wash off the coating.
Second stage	73.76 lbf⋅ft73.76 lbf⋅ft100 N⋅m

expand_more760 i,Li with gasoline V12 6.0 L 439 HP engine (2003.1–2008.7)

expand_moreM11


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Replace the screws, do not wash off the coating.
Second stage	100°100°100°

expand_moreM8


Fourth stage	25.08 lbf⋅ft25.08 lbf⋅ft34 N⋅m

expand_moreThreaded sleeve


Third stage	4.43 lbf⋅ft4.43 lbf⋅ft6 N⋅m

expand_more760 with gasoline V12 6.0 L 429 HP engine (2003.2–2005.8)

expand_moreM11


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Replace the screws, do not wash off the coating.
Second stage	100°100°100°

expand_moreM8


Fourth stage	25.08 lbf⋅ft25.08 lbf⋅ft34 N⋅m

expand_moreThreaded sleeve


Third stage	4.43 lbf⋅ft4.43 lbf⋅ft6 N⋅m

expand_moreVibration damper

expand_moreAll other modifications


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

expand_moreEngine control

expand_moreCamshaft timing gear

expand_more730 i,Li with gasoline straight-6 3.0 L 228 HP engine (2003.3–2008.7)


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

expand_more735 i,Li with gasoline V8 3.6 L 268 HP at 6200 RPM, 360 N⋅m at 3700 RPM engine (2001.11–2005.2)


With camshaft adjuster	59 lbf⋅ft59 lbf⋅ft80 N⋅m
Replace bolt.

expand_more740 d with diesel V8 3.9 L 255 HP engine (2002.10–2005.2)


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


745 i,Li with gasoline V8 4.4 L 329 HP engine (2001.11–2008.7)	59 lbf⋅ft59 lbf⋅ft80 N⋅m
760 i,Li with gasoline V12 6.0 L 439 HP engine (2003.1–2008.7)	59 lbf⋅ft59 lbf⋅ft80 N⋅m
Replace bolt.
760 with gasoline V12 6.0 L 429 HP engine (2003.2–2005.8)	59 lbf⋅ft59 lbf⋅ft80 N⋅m
Replace bolt.

expand_moreAll other modifications

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_moreChain tensioner

expand_moreBMW diesel straight-6 3.0 L M57 D30 (306D3) 208 HP


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_moreBMW diesel V8 3.9 L M67 D39 (398D1) 255 HP


M22 × 1,5 screws	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_moreAll other modifications


M22 × 1,5 screws	47.94 lbf⋅ft47.94 lbf⋅ft65 N⋅m

expand_moreChain tensioner cylinder


M22 × 1,5 screws	47.94 lbf⋅ft47.94 lbf⋅ft65 N⋅m

expand_moreChain tensioner locking screws

expand_moreBMW diesel straight-6 3.0 L M57 D30 (306D3) 208 HP


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_moreBMW gasoline straight-6 3.0 L M54 B30 (306S3) 228 HP


M26	51.63 lbf⋅ft51.63 lbf⋅ft70 N⋅m

expand_moreTiming case cover

expand_moreBMW diesel straight-6 3.0 L M57 D30 (306D3) 208 HP


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 lines

expand_moreAll other modifications


M8	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m

expand_moreOil drain plug

expand_more735 i,Li with gasoline V8 3.6 L 268 HP at 6200 RPM, 360 N⋅m at 3700 RPM engine (2001.11–2005.2)


M18 × 1,5 screws	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m

expand_more745 i,Li with gasoline V8 4.4 L 329 HP engine (2001.11–2008.7)


M18	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m

expand_more760 i,Li with gasoline V12 6.0 L 439 HP engine (2003.1–2008.7)


M18	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m

expand_more760 with gasoline V12 6.0 L 429 HP engine (2003.2–2005.8)


M18	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m

expand_moreAll other modifications


M12	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreOil filter


BMW gasoline straight-6 3.0 L M54 B30 (306S3) 228 HP	14.75–17.7 lbf⋅ft14.75–17.7 lbf⋅ft20–24 N⋅m
Slightly oil sealing lips.

expand_moreAll other modifications


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

expand_moreOil filter housing

expand_moreBMW diesel straight-6 3.0 L M57 D30 (306D3) 208 HP


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

expand_moreBMW gasoline straight-6 3.0 L M54 B30 (306S3) 228 HP


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

expand_moreBMW diesel V8 3.9 L M67 D39 (398D1) 255 HP

expand_moreM10


M12	24.34 lbf⋅ft24.34 lbf⋅ft33 N⋅m


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

expand_moreBMW gasoline V12 6.0 L N73 B60 A 429 HP


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 drain plug	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreOil pressure sensor

expand_moreAll other modifications


M12 × 1,5 screws	19.91 lbf⋅ft19.91 lbf⋅ft27 N⋅m

expand_moreOil pump


BMW gasoline straight-6 3.0 L M54 B30 (306S3) 228 HP	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreAll other modifications


Onto crankcase	25.08 lbf⋅ft25.08 lbf⋅ft34 N⋅m
M8 10.9

expand_moreOil pump chain wheel

expand_moreBMW gasoline straight-6 3.0 L M54 B30 (306S3) 228 HP


M10 × 1 screws	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Left-hand thread

expand_moreBMW diesel V8 3.9 L M67 D39 (398D1) 255 HP


M6	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreBMW gasoline V12 6.0 L N73 B60 A 429 HP


M6	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreBMW gasoline V12 6.0 L N73 B60 A 439 HP


M6	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreAll other modifications


M6	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
M8	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_moreOil sump

expand_more730 d with diesel straight-6 3.0 L 208 HP engine (2002.10–2008.7)


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_more730 i,Li with gasoline straight-6 3.0 L 228 HP engine (2003.3–2008.7)


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_more735 i,Li with gasoline V8 3.6 L 268 HP at 6200 RPM, 360 N⋅m at 3700 RPM engine (2001.11–2005.2)


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

expand_more740 d with diesel V8 3.9 L 255 HP engine (2002.10–2005.2)


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_more745 i,Li with gasoline V8 4.4 L 329 HP engine (2001.11–2008.7)


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	17.7 lbf⋅ft17.7 lbf⋅ft24 N⋅m
M8 screws (class 8.8)	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m

expand_more760 i,Li with gasoline V12 6.0 L 439 HP engine (2003.1–2008.7)


M6 screws (class 10.9)	8.85 lbf⋅ft8.85 lbf⋅ft12 N⋅m
Replace the coated screws
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_more760 with gasoline V12 6.0 L 429 HP engine (2003.2–2005.8)


M6 screws (class 10.9)	8.85 lbf⋅ft8.85 lbf⋅ft12 N⋅m
Replace the coated screws
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_moreEngine management

expand_moreCamshaft sensor


BMW diesel straight-6 3.0 L M57 D30 (306D3) 208 HP	2.95 lbf⋅ft2.95 lbf⋅ft4 N⋅m
BMW diesel straight-6 3.0 L M57 D30 (306D2) 215 HP	2.95 lbf⋅ft2.95 lbf⋅ft4 N⋅m

expand_moreCrankshaft sensor


BMW gasoline straight-6 3.0 L M54 B30 (306S3) 228 HP	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Replace screws.


Glow plugs	13.28 lbf⋅ft13.28 lbf⋅ft18 N⋅m

expand_moreKnock sensor


BMW gasoline straight-6 3.0 L M54 B30 (306S3) 228 HP	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
BMW gasoline V8 3.6 L N62 B36 A 268 HP at 6200 RPM, 360 N⋅m at 3700 RPM	15.49 lbf⋅ft15.49 lbf⋅ft21 N⋅m
BMW gasoline V12 6.0 L N73 B60 A 429 HP	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
BMW gasoline V12 6.0 L N73 B60 A 439 HP	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
All other modifications	14.75–16.23 lbf⋅ft14.75–16.23 lbf⋅ft20–22 N⋅m


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

expand_moreEngine mounting


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_moreSubframe


M12 screws (class 10.9)	73.76 lbf⋅ft73.76 lbf⋅ft100 N⋅m

expand_moreSubframe stiffening plate


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

expand_moreExhaust system

expand_moreCatalytic converter

expand_moreBMW gasoline straight-6 3.0 L M54 B30 (306S3) 228 HP


M10	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_moreAll other modifications


M8	15.49 lbf⋅ft15.49 lbf⋅ft21 N⋅m

expand_moreExhaust manifold

expand_more730 d with diesel straight-6 3.0 L 208 HP engine (2002.10–2008.7)


M8	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
Replace the nuts and use fitting paste

expand_more730 i,Li with gasoline straight-6 3.0 L 228 HP engine (2003.3–2008.7)


M7	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Replace the nuts and use fitting paste

expand_moreAll other modifications


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

expand_moreExhaust manifold heat shields


BMW diesel V8 3.9 L M67 D39 (398D1) 255 HP	9.59–11.06 lbf⋅ft9.59–11.06 lbf⋅ft13–15 N⋅m
All other modifications	7.38–8.85 lbf⋅ft7.38–8.85 lbf⋅ft10–12 N⋅m

expand_moreExhaust pipe

expand_moreBMW diesel straight-6 3.0 L M57 D30 (306D3) 208 HP

expand_moreClamps at the turbocharger


First stage	4.43 lbf⋅ft4.43 lbf⋅ft6 N⋅m
Second stage	2.21 lbf⋅ft2.21 lbf⋅ft3 N⋅m
Control tensioner

expand_moreBMW gasoline straight-6 3.0 L M54 B30 (306S3) 228 HP


M10	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_moreBMW diesel V8 3.9 L M67 D39 (398D1) 255 HP

expand_moreClamps


M8	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m

expand_moreBMW gasoline V12 6.0 L N73 B60 A 429 HP


Clamps	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m

expand_moreBMW gasoline V12 6.0 L N73 B60 A 439 HP


Clamps	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m

expand_moreAll other modifications


On exhaust manifold	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
Replace screws.

expand_moreExhaust pipe bracket

expand_moreBMW gasoline straight-6 3.0 L M54 B30 (306S3) 228 HP

expand_moreAt the gearbox


M8	15.49 lbf⋅ft15.49 lbf⋅ft21 N⋅m

expand_moreAll other modifications

expand_moreAt the differential


M12	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m


At the gearbox	15.49 lbf⋅ft15.49 lbf⋅ft21 N⋅m

expand_moreExhaust pipe rear

expand_moreBMW diesel straight-6 3.0 L M57 D30 (306D3) 208 HP


Clamps	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_moreBMW diesel V8 3.9 L M67 D39 (398D1) 255 HP

expand_moreClamps


M8	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m

expand_moreAll other modifications


Clamps	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m


Particle filter bracket	15.49 lbf⋅ft15.49 lbf⋅ft21 N⋅m

expand_morePrimary catalytic converter

expand_moreBMW diesel V8 3.9 L M67 D39 (398D1) 255 HP


At the turbocharger	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
Replace nuts.

expand_moreAll other modifications


Clamps	37.62 lbf⋅ft37.62 lbf⋅ft51 N⋅m

expand_moreFuel supply

expand_moreFuel pump


Locking screws	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_moreIgnition system

expand_moreSpark plugs


730 i,Li with gasoline straight-6 3.0 L 228 HP engine (2003.3–2008.7)	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m

expand_moreAll other modifications


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_moreStart system


Starter	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

Please be noted that all capacities listed here are approximate. Check fluid levels when adding or refilling as recommended in your 2003 BMW 7 Series 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 7 Series 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 2003 BMW 7 Series you're not only saving money, but also also improving your technical skills and learning something new.

2003 BMW 7 Series Fourth generation Engine Fastener Tightening Specifications

Table of Contents

Conquer your fears and never give up!

BMW 7 Series Fourth generation model years

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