Technical Values: Overview

WARNING: This page is about a different variant/trim than selected.

*Location	*Description	*Type	*Basic value	*Tolerance 1	*Tolerance 2
Screw, M4 8.8		Tightening torque	3 Nm (2 ftlb.)
Screw, M4 10.9		Tightening torque	4 Nm (3 ftlb.)
Screw, M4 12.9		Tightening torque	5 Nm (3.5 ftlb.)
Screw, M5 8.8		Tightening torque	6 Nm (4.5 ftlb.)
Screw, M5 10.9		Tightening torque	8 Nm (6 ftlb.)
Screw, M5 12.9		Tightening torque	10 Nm (7.5 ftlb.)
Screw, M6 8.8		Tightening torque	10 Nm (7.5 ftlb.)
Screw, M6 10.9		Tightening torque	13 Nm (9.5 ftlb.)
Screw, M6 12.9		Tightening torque	16 Nm (12 ftlb.)
Screw, M8 8.8		Tightening torque	23 Nm (17 ftlb.)
Screw, M8 10.9		Tightening torque	33 Nm (24 ftlb.)
Screw, M8 12.9		Tightening torque	39 Nm (29 ftlb.)
Screw, M10 8.8		Tightening torque	45 Nm (33 ftlb.)
Screw, M10 10.9		Tightening torque	65 Nm (48 ftlb.)
Screw, M10 12.9		Tightening torque	80 Nm (59 ftlb.)
Screw, M10 x 1.25 8.8		Tightening torque	50 Nm (37 ftlb.)
Screw, M10 x 1.25 10.9		Tightening torque	70 Nm (52 ftlb.)
Screw, M10 x 1.25 12.9		Tightening torque	85 Nm (63 ftlb.)
Screw, M12 8.8		Tightening torque	80 Nm (59 ftlb.)
Screw, M12 10.9		Tightening torque	115 Nm (85 ftlb.)
Screw, M12 12.9		Tightening torque	135 Nm (100 ftlb.)
Screw, M12 x 1.25 8.8		Tightening torque	90 Nm (67 ftlb.)
Screw, M12 x 1.25 10.9		Tightening torque	125 Nm (93 ftlb.)
Screw, M12 x 1.25 12.9		Tightening torque	150 Nm (111 ftlb.)
Screw, M12 x 1.5 8.8		Tightening torque	85 Nm (63 ftlb.)
Screw, M12 x 1.5 10.9		Tightening torque	120 Nm (89 ftlb.)
Screw, M12 x 1.5 12.9		Tightening torque	145 Nm (107 ftlb.)
Screw, M14 8.8		Tightening torque	130 Nm (96 ftlb.)
Screw, M14 10.9		Tightening torque	180 Nm (133 ftlb.)
Screw, M14 12.9		Tightening torque	220 Nm (163 ftlb.)
Screw, M16 8.8		Tightening torque	200 Nm (148 ftlb.)
Screw, M16 10.9		Tightening torque	280 Nm (207 ftlb.)
Screw, M16 12.9		Tightening torque	335 Nm (248 ftlb.)
Aluminium screw, M6	AL9	Initial tightening	4 Nm (3 ftlb.)
Aluminium screw, M6	AL9	Final tightening	90°
Aluminium screw, M8	AL9	Initial tightening	10 Nm (7.5 ftlb.)
Aluminium screw, M8	AL9	Final tightening	90°
Aluminium screw, M10	AL9	Initial tightening	20 Nm (15 ftlb.)
Aluminium screw, M10	AL9	Final tightening	90°
Screw for fuel tank	M8 x 30 (3 ea.)	Tightening torque	20 Nm (15 ftlb.)
Screw for fuel tank restraining strap	M8 x 30 (4 ea.)	Tightening torque	20 Nm (15 ftlb.)
Screws for filler neck holder	M6 x 20 (3 ea.), observe specified tightening sequence	Tightening torque	8 Nm (6 ftlb.)
Screw for filler neck	M6 x 20 (1 ea.)	Tightening torque	8 Nm (6 ftlb.)
Screw for filler neck protector	M6 x 20 (3 ea.), observe specified tightening sequence	Tightening torque	8 Nm (6 ftlb.)
Fuel line protector to body	Screw, M6 x 20 (3 ea.)	Tightening torque	8 Nm (6 ftlb.)
Filler neck holder to body	Screw, M6 x 20 (2 ea.)	Tightening torque	8 Nm (6 ftlb.)
Tank ventilation sensor	M6 screw	Tightening torque	9 Nm (6.5 ftlb.)
Locking ring on fuel tank flange		Tightening torque	110 Nm (81.5 ftlb.)	+/- 5 Nm (3.5 ftlb.)
Carbon canister to battery tray (top)	Hexagon nut, M6 (2 ea.)	Tightening torque	6 Nm (4.5 ftlb.)
Carbon canister to battery tray (bottom)	Hexagon nut, M6 (1 ea.)	Tightening torque	6 Nm (4.5 ftlb.)
Leakage diagnosis unit to carbon canister	Tapping screw, M5 x 12	Tightening torque	2 Nm (1.5 ftlb.)
Pressure sensor holder	Screw, M6 x 20	Tightening torque	9 Nm (6.5 ftlb.)
Holder for tank ventilation control valve	Screw, M6 x 20	Tightening torque	9 Nm (6.5 ftlb.)
Damping element holder	Screw, M6 x 12	Tightening torque	9 Nm (6.5 ftlb.)
Fastening screw for turbocharger lines	M6 x 16	Tightening torque	9 Nm (6.5 ftlb.)
Fastening screw for turbocharger lines	M6 x 12	Tightening torque	9 Nm (6.5 ftlb.)
Screw for recirculating air valve	M6 x 18	Tightening torque	9 Nm (6.5 ftlb.)
Control box for bypass flap	M6 nut	Tightening torque	8 Nm (6 ftlb.)
Total control rod adjustment range		Setpoint value	12 mm	+/- 0.5 mm
Control rod adjustment range	with 200 mbar vacuum	Setpoint value	4 mm	+/- 0.3 mm
Lock nut for control box control rod	M6	Tightening torque	8 Nm (6 ftlb.)
Fastening screws for charge-air cooler holder	M6 x 20	Tightening torque	9 Nm (6.5 ftlb.)
Screw-type clamp for pressure hose		Tightening torque	5.5 Nm (4 ftlb.)	+/- 0.5 Nm (0.3 ftlb.)
Screw-type clamp for pressure hose		Tightening torque	5.5 Nm (4 ftlb.)	+/- 0.5 Nm (0.3 ftlb.)
Fastening screws securing pressure pipe to throttle valve	M6 x 18	Tightening torque	8 Nm (6 ftlb.)
Fastening screw for boost pressure sensor		Tightening torque	5 Nm (3.5 ftlb.)
Screw-type clamp for pressure hose		Tightening torque	5.5 Nm (4 ftlb.)	+/- 0.5 Nm (0.3 ftlb.)
Fastening screw for charge-air cooler	M6 x 14	Tightening torque	6.5 Nm (4.75 ftlb.)
Fastening screw securing intake manifold to turbocharger	M6 x 32	Tightening torque	9 Nm (6.5 ftlb.)
Fastening screw securing intake manifold to pressure pipe	M6 x 20	Tightening torque	9 Nm (6.5 ftlb.)
Fastening screw securing pressure pipe to turbocharger	M6 x 23	Tightening torque	9 Nm (6.5 ftlb.)
Screw-type clamp for pressure pipe connection		Tightening torque	3.5 Nm (2.5 ftlb.)
Air cleaner housing cover	Tapping screw	Tightening torque	2 Nm (1.5 ftlb.)
Air-cleaner cowl to air cleaner	Screw-type clamp	Tightening torque	5 Nm (3.5 ftlb.)
Rear part of air cleaner housing	Tapping screw	Tightening torque	2 Nm (1.5 ftlb.)
Intake scoop to air-cleaner cowl	Screw-type clamp	Tightening torque	3.5 Nm (2.5 ftlb.)
Intake pipe to intake scoop	Screw-type clamp	Tightening torque	3.5 Nm (2.5 ftlb.)
Air cleaner housing to lock carrier	Screw, M6 x 14	Tightening torque	4.5 Nm (3.25 ftlb.)
Fastening screws for intake-air distributor	M6 x 45/Observe tightening sequence	Tightening torque	9 Nm (6.5 ftlb.)
Fastening screw securing throttle valve to intake-air distributor	TP6 x 45	Tightening torque	7 Nm (5 ftlb.)
Fastening screw for pressure sensor on intake-air distributor		Tightening torque	9 Nm (6.5 ftlb.)
Vacuum line holder	M6 screw	Tightening torque	9 Nm (6.6 ftlb.)
Screws securing vacuum reservoir to holder in wheel housing		Tightening torque	4 Nm (3 ftlb.)
Screw for high-pressure pump	M6 x 22	Tightening torque	12 Nm (9 ftlb.)
Screw for fuel collection pipe	M6 x 16/observe tightening sequence	Initial tightening	7 Nm (5 ftlb.)
Screw for fuel collection pipe		Final tightening	10 Nm (7.5 ftlb.)
Fuel pressure sensor for high pressure		Tightening torque	20 Nm (15 ftlb.)
Screw for clamp for high-pressure line	M6 x 12	Tightening torque	9 Nm (6.5 ftlb.)
Screw for low-pressure fuel line	M6 x 16	Tightening torque	9 Nm (6.5 ftlb.)
Fuel pressure sensor for high pressure		Tightening torque	20 Nm (15 ftlb.)
Screw securing heat shield to high-pressure pump	M6 x 12	Tightening torque	9 Nm (6.5 ftlb.)
Screw securing heat shield to high-pressure pump	M6 x 25	Tightening torque	9 Nm (6.5 ftlb.)
Screw for high-pressure pump	M6 x 22	Tightening torque	12 Nm (9 ftlb.)
Screw for clamp on high-pressure line	M6 x 12	Tightening torque	9 Nm (6.5 ftlb.)
Union nut for fuel high-pressure line	Coat thread on union nuts with Microgleit DF 977S. Leave to dry off for at least 5 minutes before fitting. Observe specified tightening sequence!	Initial tightening	8 Nm (6 ftlb.)
Union nut for fuel high-pressure line		Final tightening	+ 50°
Screw for low-pressure fuel line	M6 x 16	Tightening torque	9 Nm (6.5 ftlb.)
Union nut for fuel low-pressure line	Coat thread on union nuts with Microgleit DF 977S. Observe drying time of at least 5 minutes before fitting. Observe specified tightening sequence!	Initial tightening	8 Nm (6 ftlb.)
Union nut for fuel low-pressure line		Final tightening	+ 50°
Oxygen sensors upstream of catalytic converter	Grease thread with hot screw paste	Tightening torque	52 Nm (38 ftlb.)
Oxygen sensors downstream of catalytic converter	Grease thread with hot screw paste	Tightening torque	52 Nm (38 ftlb.)
Fastening screws for exhaust flap actuator	M5	Tightening torque	5 Nm (3.5 ftlb.)
Ball clamp securing exhaust system to exhaust pipe		Tightening torque	35 Nm (26 ftlb.)
Fastening screws securing exhaust system to body	M8	Tightening torque	23 Nm (17 ftlb.)
Fastening screws for rear silencer strut	M8 x 25	Tightening torque	23 Nm (17 ftlb.)
Fastening screws securing rear silencer to body	M8 x 22	Tightening torque	23 Nm (17 ftlb.)
Fastening screw for tailpipe cover	M6 x 12	Tightening torque	8 Nm (6 ftlb.)	+/- 1 Nm (0.5 ftlb.)
Exhaust clamp	Replace rear silencer	Tightening torque	33 Nm (24 ftlb.)
V-band clamp securing primary catalytic converter to turbocharger		Tightening torque	7 Nm (5 ftlb.)	+/- 1 Nm (0.5 ftlb.)
V-band clamp securing primary catalytic converter to catalytic converter		Tightening torque	15 Nm (11 ftlb.)	+/- 2 Nm (1.5 ftlb.)
Fastening screw securing support to catalytic converter	M8 x 20	Tightening torque	23 Nm (17 ftlb.)
Fastening screw securing holder to catalytic converter	M8 x 20	Tightening torque	23 Nm (17 ftlb.)
Fastening screw securing holder on bank 1 to transmission		Tightening torque	23 Nm (17 ftlb.)
Fastening screw securing holder on bank 2 to transmission		Tightening torque	23 Nm (17 ftlb.)
Ball clamp securing exhaust system to catalytic converter		Tightening torque	35 Nm (26 ftlb.)
Differential pressure sensor for particle filter to strut	M6 x 16	Tightening torque	8 Nm (6 ftlb.)
Differential pressure lines to cylinder head holder	M6 x 12	Tightening torque	8 Nm (6 ftlb.)
Differential pressure lines to intake-air distributor	M8 x 16	Tightening torque	5.5 Nm (4 ftlb.)
Differential pressure line to transmission - left	M8 x 16	Tightening torque	23 Nm (17 ftlb.)
Cover section to heat shield	M6 nut	Tightening torque	8 Nm (6 ftlb.)
Exhaust temperature sensor to particle filter		Tightening torque	35 Nm (26 ftlb.)
Differential pressure line to particle filter	Union nut	Tightening torque	20 Nm (15 ftlb.)
Differential pressure line to transmission - right		Tightening torque	20 Nm (15 ftlb.)
Differential pressure lines to coolant line	M6 x 12	Tightening torque	8 Nm (6 ftlb.)
Differential pressure lines to torque support bracket	M6 x 12	Tightening torque	8 Nm (6 ftlb.)
Fastening nuts on exhaust manifold	M8/replace	Initial tightening	20 Nm (15 ftlb.)
Fastening nuts on exhaust manifold	M8/replace	Final tightening	27 Nm (20 ftlb.)
V-band clamp securing turbocharger to exhaust manifold	Replace clamp	Tightening torque	25 Nm (19 ftlb.)
Fastening screws for heat shield on cylinder head cover, inner	M6 x 12	Tightening torque	9 Nm (6.5 ftlb.)
Fastening screws for front part & rear part of heat shield	M6 x 12	Tightening torque	9 Nm (6.5 ftlb.)
Fastening screw for heat shield	M6 x 12	Tightening torque	8 Nm (5.9 ftlb.)
Fastening screw for heat shield	M8 x 16	Tightening torque	20 Nm (14.8 ftlb.)
Fastening screw for heat shield	M6 x 12	Tightening torque	8 Nm (5.9 ftlb.)
Fastening nuts for heat shield on turbocharger		Tightening torque	9 Nm (6.6 ftlb.)
Fastening nuts for heat shield on turbocharger, front	M6	Tightening torque	5 Nm (3.7 ftlb.)
Nuts for (retainer) cover on turbocharger heat shield	M6	Tightening torque	9 Nm (6.5 ftlb.)
Nuts for (retainer) cover on turbocharger heat shield	M6	Tightening torque	9 Nm (6.5 ftlb.)
Fastening screw for heat shield	M6 x 12	Tightening torque	8 Nm (5.9 ftlb.)
Fastening screw for heat shield	M8 x 16	Tightening torque	20 Nm (14.8 ftlb.)
Fastening screw for heat shield	M6 x 12	Tightening torque	8 Nm (5.9 ftlb.)
Fastening nuts for heat shield on turbocharger		Tightening torque	9 Nm (6.6 ftlb.)
Fastening nuts for heat shield on turbocharger, front	M6	Tightening torque	5 Nm (3.7 ftlb.)
Speed nut on heat shield		Tightening torque	2.5 Nm (1.75 ftlb.)
Screw for heat shield		Tightening torque	2.5 Nm (1.75 ftlb.)
For securing heat shield for rear silencer	Speed nut/plastic nut	Tightening torque	2.5 Nm (1.75 ftlb.)
Fastening screw for generator	M8 x 100	Tightening torque	23 Nm (17 ftlb.)
Fastening nut securing B+ line to generator	M8	Tightening torque	20 Nm (15 ftlb.)
Aluminium screw securing generator bracket to engine	M8 x 40/replace	Initial tightening	8 Nm (6 ftlb.)
Aluminium screw securing generator bracket to engine	M8 x 40	Final tightening	+ 90°
Fastening screw for starter	M10 x 40	Tightening torque	45 Nm (33 ftlb.)	+ 10 %	- 15 %
Fastening nut securing B+ line to starter	M8	Tightening torque	23 Nm (17 ftlb.)	+/- 10 %
Fastening nut securing control line to starter	M6	Tightening torque	9 Nm (6.5 ftlb.)
Double screw for ignition coil	M6 x 45 - M6 x 12	Tightening torque	9 Nm (6.5 ftlb.) (6.6 ftlb.)
Fastening nut securing ground line to ignition coil	M6	Tightening torque	9 Nm (6.5 ftlb.) (6.6 ftlb.)
Fastening screw pulse sender for crankshaft	Steel screw, M6 x 16	Tightening torque	9 Nm (6.5 ftlb.) (6.6 ftlb.)
Fastening screw for camshaft sensor	M6 x 16	Tightening torque	9 Nm (6.5 ftlb.) (6.6 ftlb.)
Fastening screw for knock sensor	M8 x 30	Tightening torque	30 Nm (22 ftlb.) (22.1 ftlb.)
Spark plug		Tightening torque	23 Nm (17 ftlb.) (17 ftlb.)

Information

The tightening steps in the tightening sequences relate to tightening screws uniformly, i.e. all affected screws must first be tightened uniformly to the first torque value, then all screws are tightened one stage further, and so on.
Replace all O-rings following removal!

Information

The following screws must be replaced after disassembly and/or after loosening:

Aluminium screws
Screws tightened to angle of rotation.
Screws tightened using the yield-point-controlled method.
Screws that are micro-self-locking
Screws that are damaged or severely corroded.
The torques specified in the table below generally apply to screws that are not specifically listed =>

The bolt quality is indicated on the screw head at the top as a decimal number, e.g. "8.8" or "12.9".

Bolt quality 8.8		Bolt quality 10.9		Bolt quality 12.9
Thread	[Nm (ftlb.)]	Thread	[Nm (ftlb.)]	Thread	[Nm (ftlb.)]
M4	> Tightening torque 3 Nm (2 ftlb.)	M4	> Tightening torque 4 Nm (3 ftlb.)	M4	> Tightening torque 5 Nm (3.5 ftlb.)
M5	> Tightening torque 6 Nm (4.5 ftlb.)	M5	> Tightening torque 8 Nm (6 ftlb.)	M5	> Tightening torque 10 Nm (7.5 ftlb.)
M6	> Tightening torque 10 Nm (7.5 ftlb.)	M6	> Tightening torque 13 Nm (9.5 ftlb.)	M6	> Tightening torque 16 Nm (12 ftlb.)
M8	> Tightening torque 23 Nm (17 ftlb.)	M8	> Tightening torque 33 Nm (24 ftlb.)	M8	> Tightening torque 39 Nm (29 ftlb.)
M10	> Tightening torque 45 Nm (33 ftlb.)	M10	> Tightening torque 65 Nm (48 ftlb.)	M10	> Tightening torque 80 Nm (59 ftlb.)
M10 x 1.25	> Tightening torque 50 Nm (37 ftlb.)	M10 x 1.25	> Tightening torque 70 Nm (52 ftlb.)	M10 x 1.25	> Tightening torque 85 Nm (63 ftlb.)
M12	> Tightening torque 80 Nm (59 ftlb.)	M12	> Tightening torque 115 Nm (85 ftlb.)	M12	> Tightening torque 135 Nm (100 ftlb.)
M12 x 1.25	> Tightening torque 90 Nm (67 ftlb.)	M12 x 1.25	> Tightening torque 125 Nm (93 ftlb.)	M12 x 1.25	> Tightening torque 150 Nm (111 ftlb.)
M12 x 1.5	> Tightening torque 85 Nm (63 ftlb.)	M12 x 1.5	> Tightening torque 120 Nm (89 ftlb.)	M12 x 1.5	> Tightening torque 145 Nm (107 ftlb.)
M14	> Tightening torque 130 Nm (96 ftlb.)	M14	> Tightening torque 180 Nm (133 ftlb.)	M14	> Tightening torque 220 Nm (163 ftlb.)
M16	> Tightening torque 200 Nm (148 ftlb.)	M16	> Tightening torque 280 Nm (207 ftlb.)	M16	> Tightening torque 335 Nm (248 ftlb.)