Technical Values: Overview

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

Location	Description	Type	Basic value	Tolerance 1
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.)
Aluminum screw, M6	AL9	Initial tightening	4 Nm (3 ftlb.)
Aluminum screw, M6	AL9	Final tightening	90°
Aluminum screw, M8	AL9	Initial tightening	10 Nm (7.5 ftlb.)
Aluminum screw, M8	AL9	Final tightening	90°
Aluminum screw, M10	AL9	Initial tightening	20 Nm (15 ftlb.)
Aluminum screw, M10	AL9	Final tightening	90°
Screw securing tank restraining strap to body	M8 x 40/5 each	Torque	20 Nm (14.8 ftlb.)
Screw securing tank restraining strap to body	M8 x 50/3 each	tightening torque	20 Nm (14.8 ftlb.)
Screw securing tank filler neck to body	M6 x 16	tightening torque	8 Nm (5.9 ftlb.)
Nut on tank filler neck cover		tightening torque	2.5 Nm (1.8 ftlb.)
Nut for fuel line cover	M6/4 each	tightening torque	4.5 Nm (3.3 ftlb.)
Flange ring on fuel tank	Replace gasket	tightening torque	110 Nm (81.1 ftlb.)
Screw-type clamp securing filler hose to fuel tank		tightening torque	3.5 Nm (2.6 ftlb.)
Screw for active carbon filter canister	M8 x 22	Tightening torque	20 Nm (15 ftlb.)
Screw for fresh-air line NAR	M8 x 22	Tightening torque	20 Nm (15 ftlb.)
Screw for sensor dummy	M6 x 16	Tightening torque	9 Nm (6.5 ftlb.)
Screw for damping element holder	M6 x 12	Tightening torque	9 Nm (6.5 ftlb.)
Screw for active carbon filter valve holder and pressure sensor holder	M6 x 20	Tightening torque	9 Nm (6.5 ftlb.)
Fastening screw for turbocharger shut-off valve	M6 x 18	Tightening torque	9 Nm (6.6 ftlb.)
Securing nut turbocharger stud	M8	Tightening torque	25 Nm (18.4 ftlb.)
Stud for turbocharger	M8	Tightening torque	15 Nm (11.1 ftlb.)
Fastening nut for turbocharger dowel stud	M8	Tightening torque	30 Nm (22.1 ftlb.)
Dowel studs for turbocharger	M8	Tightening torque	15 Nm (11.1 ftlb.)
V-band clip on turbocharger	replace	Tightening torque	20 Nm (14.8 ftlb.)
Screw on turbocharger speed sensor	M4 x 14	Tightening torque	5 Nm (3.7 ftlb.)
Screw plug on turbocharger nozzle	M16 x 1 x 7, 5	Tightening torque	25 Nm (18.4 ftlb.)
Adjustment travel for control rod	Vacuum at 165 - 175 mbar	Setpoint value	8 mm	+/- 1 mm
Adjustment travel for control rod	at a vacuum of 95 - 105 mbar	Setpoint value	3 mm	+/- 1 mm
Nut vacuum modulator	M6	Tightening torque	8 Nm (5.9 ftlb.)
Fastening screw for turbocharger shut-off valve	M6 x 18	Tightening torque	9 Nm (6.6 ftlb.)
Screw for activated carbon filter lines		Tightening torque	9 Nm (6.6 ftlb.)
Lock nuts on control rod		Tightening torque	8 Nm (5.9 ftlb.)
Fastening screws on turbocharger lines	M6	Tightening torque	9 Nm (6.6 ftlb.)
Fastening screws on turbocharger lines	M6	Tightening torque	9 Nm (6.6 ftlb.)
Coolant return line screw for turbocharger on left cylinder head	M6X16	Tightening torque	9 Nm (6.6 ftlb.)
Screw-type clamp on pressure pipe		Tightening torque	5.5 Nm (4 ftlb.)
Screw securing upper pressure pipe to cooler retaining frame	M6 x 25	Tightening torque	8 Nm (6 ftlb.)
Screw for pressure pipe	M6 x 20	Tightening torque	8 Nm (6 ftlb.)
Screw securing lower pressure pipe to cooler retaining frame	M6 x 25	Tightening torque	8 Nm (6 ftlb.)
Screw for pressure sensor		Tightening torque	5 Nm (3.5 ftlb.)
Screw-type clamp on suction hose		Tightening torque	3.5 Nm (2.5 ftlb.)
Screw securing pressure pipe to turbocharger	M6	Tightening torque	8 Nm (6 ftlb.)
Screw securing pressure pipe to engine	M6	Tightening torque	8 Nm (6 ftlb.)
Screw securing intake pipe to air cleaner housing		Tightening torque	9 Nm (6.5 ftlb.)
Screws for air-cleaner element	M6	Tightening torque	9 Nm (6.5 ftlb.)
Screw securing lower engine cover to air cleaner housing		Tightening torque	4 Nm (3 ftlb.)
Fastening screw for pressure sensor on intake-air distributor		Tightening torque	5 Nm (3.5 ftlb.)
Screw securing throttle valve to intake-air distributor		Tightening torque	7 Nm (5 ftlb.)
Fastening screws securing center intake-air distributor to intake-air distributor		Tightening torque	7 Nm (5 ftlb.)
Fastening screws for intake air distributor	M6 x 25/Observe tightening sequence	Initial tightening	8 Nm (6 ftlb.)
Screw for intake-air distributor, center		Tightening torque	8 Nm (6 ftlb.)
Oxygen sensors upstream of catalytic converter	Coat thread with hot screw paste	Tightening torque	52 Nm (38 ftlb.)
Oxygen sensors downstream of catalytic converter	Coat thread with hot screw paste	Tightening torque	52 Nm (38 ftlb.)
Fastening screws for high-pressure pump	M8 x 25	Initial tightening	20 Nm (14.8 ftlb.)
Fastening screws for high-pressure pump		Final tightening	+ 45°
Fastening screw for fuel collection pipe	M6 x 16	Tightening torque	9 Nm (6.6 ftlb.)
High-pressure fuel line adapter		tightening torque	40 Nm (29.5 ftlb.)
High-pressure fuel pressure sensor		Tightening torque	25 Nm (18.4 ftlb.)
Fuel line nut	M6	Tightening torque	9 Nm (6.6 ftlb.)
Low-pressure fuel pressure sensor		Tightening torque	15 Nm (11.1 ftlb.)
Low-pressure fuel line distributor	Coat thread on union nuts with Microgleit DF 977S. Observe drying time of at least 5 minutes before fitting.	Tightening torque	8 Nm (5.9 ftlb.)
Low-pressure fuel line distributor	Coat thread on union nuts with Microgleit DF 977S. Observe drying time of at least 5 minutes before fitting.	Torque angle	60°
Fastening screw for low-pressure line support	M6 x 12	Tightening torque	9 Nm (6.6 ftlb.)
Shield on high-pressure pump crash support	PT 7x22	Tightening torque	14 Nm (10.3 ftlb.)
Fastening screw for shield on high-pressure pump	M6 x 12	Tightening torque	8 Nm (5.9 ftlb.)
Fastening screw for shield on high-pressure pump	M6 x 25	tightening torque	8 Nm (5.9 ftlb.)
Fastening screw for high-pressure fuel line	Replace	tightening torque	8 Nm (5.9 ftlb.)
Fastening screw for high-pressure fuel line		final tightening torque	45°
Fastening screw for fuel line support	M6 x 12	Tightening torque	9 Nm (6.6 ftlb.)
Union nut for fuel line	Coat thread on union nuts with Microgleit DF 977S. Observe drying time of at least 5 minutes before fitting.	tightening torque of	10 Nm (7.4 ftlb.)
Union nut for fuel line	Coat thread on union nut with Microgleit DF 977S. Observe drying time of at least 5 minutes before fitting.	Torque angle	60°
Screw securing rear exhaust system to body	M8	Tightening torque	23 Nm (17 ftlb.)
Fastening screws for exhaust flap actuator	M5	Tightening torque	5 Nm (3.5 ftlb.)
Fastening screw securing tailpipe cover	M6 x 12	Tightening torque	8 Nm (6 ftlb.)
Clamp for tailpipe		Tightening torque	35 Nm (26 ftlb.)
Exhaust clamp	Replace rear silencer	Tightening torque	23 Nm (17 ftlb.)
Speed nut for heat shields		Tightening torque	2.5 Nm (1.75 ftlb.)
V-band clamp 148 securing primary catalytic converter to turbocharger		Tightening torque	7 Nm (5 ftlb.)
Nut securing catalytic converter to front silencer		Tightening torque	23 Nm (17 ftlb.)
Screw securing exhaust system to transmission support	M8	Tightening torque	23 Nm (17 ftlb.)
Exhaust clamp	Replace	Tightening torque	23 Nm (17 ftlb.)
Screw, spring/tab assembly	M8 x 50	Tightening torque	23 Nm (17 ftlb.)
Screw securing differential pressure sensor for petrol particulate filter to holder		Tightening torque	8 Nm (6 ftlb.)
Exhaust temperature sensor		Tightening torque	45 Nm (33 ftlb.)
Union nut securing differential pressure sensor connections to particulate filter		Tightening torque	45 Nm (33 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.)
Screw for starter, top	M12 x 100/rep lace	Initial tightening	30 Nm (22 ftlb.)
Screw for starter, top	M12 x 100	Final tightening	+ 105°
Screw for starter, bottom	M10 x 50	Tightening torque	65 Nm (48 ftlb.)
Nut securing B+ line to starter		Tightening torque	20 Nm (15 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.)
Aluminum screw securing generator bracket to engine	M8 x 40/replace	Initial tightening	8 Nm (6 ftlb.)
Aluminum screw securing generator bracket to engine	M8 x 40	Final tightening	+ 90°
Double screw for ignition coil	M6 x 45 - M6 x 12	Tightening torque	9 Nm (6.5 ftlb.) (6.6 ftlb.)
Fastening screw for camshaft hall sender	M6 x 16	Tightening torque	9 Nm (6.5 ftlb.) (6.6 ftlb.)
Fastening screw for crankshaft pulse sender	Aluminum screw, M6 x 18	Initial tightening	3 Nm (2 ftlb.) (2.2 ftlb.)
Fastening screw for crankshaft pulse sender	Aluminum screw, M6 x 18	Torque angle	90°
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.)
Fastening nut securing ground line to ignition coil	M6	Tightening torque	9 Nm (6.5 ftlb.) (6.6 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:

Aluminum 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.)