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°
Screws securing engine carrier to engine	M10x 35	Tightening torque	55 Nm (40.6 ftlb.)
Engine mounting bolts on front axle carrier	M10x 55	Torque	55 Nm (40.6 ftlb.)
Bolt, engine mounting to front axle	M8x50	Torque	30 Nm (22.1 ftlb.)
Screws shield to engine carrier	M6x22	Torque	10 Nm (7.4 ftlb.)
Screws support bearing on engine carrier	M6x22	Torque	10 Nm (7.4 ftlb.)
Bolt support bearing on front axle carrier	M8x45	Torque	20 Nm (14.8 ftlb.)
Bolts, engine mounting to engine carrier		Initial tightening	90 Nm (66.4 ftlb.)
Bolts, engine mounting to engine carrier		Final tightening	+ 90°
Screw for torque support	M10x 75	Tightening torque	55 Nm (41 ftlb.)
Screw for torque support bracket	M8x 55/(V6 Turbo: M8x 45)	Tightening torque	23 Nm (17 ftlb.)
Torque support bracket upper part to lower part	M10x 35	Tightening torque	55 Nm (41 ftlb.)
Screw for torque support mounting bracket	M8x35	Tightening torque	23 Nm (17 ftlb.)
Screws on crankcase cover	Replace following removal.	Initial tightening	3 Nm (2 ftlb.)
Screws on crankcase cover, on belt side	Replace following removal.	Final tightening	+ 90°
Screws on crankcase cover in oil guide housing	Replace following removal.	Final tightening	9 Nm
Screw plug for securing crankshaft	O-ring replace	Tightening torque	25 Nm (18.4 ftlb.)
plug for securing crankshaft screw	Screw plug Replace	Tightening torque	40 Nm (29.5 ftlb.)
Screws for oil separator		Tightening torque	9 Nm (6.5 ftlb.)
Screw for positive crankcase ventilation line		Tightening torque	9 Nm (6.5 ftlb.)
Screw for positive crankcase ventilation line		Tightening torque	9 Nm (6.5 ftlb.)
Screw for positive crankcase ventilation line		Tightening torque	9 Nm (6.5 ftlb.)
Fastening screw on vacuum reservoir		Tightening torque	9 Nm (6.5 ftlb.)
Fastening nut for vacuum reservoir		Tightening torque	9 Nm (6.5 ftlb.)
Screw for engine guard, front	M6 x 16	Tightening torque	6 Nm (4.5 ftlb.)
Screw for engine guard, side	M8 x 70	Tightening torque	25 Nm (19 ftlb.)
Screw for engine guard, rear	M8 x 20	Tightening torque	20 Nm (15 ftlb.)
Screw for deflection roller (air-conditioning compressor)	M8 x 37/replace	Tightening torque	25 Nm (19 ftlb.)
Screw for belt tensioner (air-conditioning compressor)	M8 x 33	Tightening torque	25 Nm (19 ftlb.)
Screw for belt tensioner (generator)	M8 x 25 (2ea.)/replace	Initial tightening	8 Nm (6 ftlb.)
Screw for belt tensioner (generator)	M8 x 25 (2ea.)/replace	Final tightening	+ 45°
Screw for deflection roller (generator)	M8 x 16.9 x 65 x 50	Tightening torque	25 Nm (19 ftlb.)
Screw securing pulley to coolant pump	M6	Tightening torque	9 Nm (6.5 ftlb.)
Screw for vibration damper	M16 x 1.5 x 75/replace	Initial tightening	150 Nm (111 ftlb.)
Screw for vibration damper	M16 x 1.5 x 75/replace	Final tightening	90°
Fastening screw securing drive plate to crankshaft	M10 x 1 x 29/always replace after removal./tighten in diagonally opposite sequence.	pre-tightening	60 Nm (44.3 ftlb.)
Fastening screw securing drive plate to crankshaft		final-tightening	+ 90°
Screw for balance shaft bracing wheel	Replace following removal.	Initial tightening	40 Nm (30 ftlb.)
Screw for balance shaft bracing wheel	Replace following removal.	Torque angle	+ 45°
Screw for balance weight	Replace following removal.	Initial tightening	40 Nm (30 ftlb.)
Screw for balance weight	Replace following removal.	Torque angle	+ 90°
Screws for balance shaft end plate		Tightening torque	9 Nm (6.5 ftlb.)
Screws for crankshaft bearing covers	Replace following removal.	Initial tightening	30 Nm (22 ftlb.)
Screws for crankshaft bearing covers	Replace following removal.	Torque angle	+ 90°
Screws for crankshaft bearing covers, side	Replace following removal.	Tightening torque	20 Nm (15 ftlb.)
Screws for crankshaft bearing covers, side	Replace following removal.	Torque angle	+ 90°
Connecting rod bolts		Initial tightening	50 Nm (37 ftlb.)
Connecting rod bolts		Final tightening	+ 90°
Banjo bolt for oil spray jet		Initial tightening	10 Nm (7.5 ftlb.)
Banjo bolt for oil spray jet		Final tightening	+ 45°
Upper screws on chain housing cover in chain box	Replace following removal.	Initial tightening	3 Nm (2 ftlb.)
Upper screws on chain housing cover in chain box	Replace following removal.	Tightening torque	8 Nm (6 ftlb.)
Upper screws on chain housing cover in chain box	Replace following removal.	Final tightening	+ 90°
Sealing ring	Replace, press in flush	Press-in depth	0 mm	+ 0 mm	- 0.2 mm
Screw for lower chain housing cover	M6 x 25 (19ea.)/replace aluminium screws with steel screws, observe specified tightening sequence	Initial tightening	3 Nm (2 ftlb.)
Screw for lower chain housing cover		Final tightening	+ 90°
Screw for chain housing cover on cylinder bank 1	M6 x 22 (8ea.)/replace, observe specified tightening sequence	Tightening torque	9 Nm (6.5 ftlb.)
Screw for chain housing cover on cylinder bank 2	M6 x 22 (7ea.)/replace, observe specified tightening sequence	Tightening torque	9 Nm (6.5 ftlb.)
Screw for chain housing cover on cylinder bank 2	M6 x 22 - M6 x 12/replace, observe specified tightening sequence	Tightening torque	9 Nm (6.5 ftlb.)
Screw securing solenoid valve to chain housing cover	M6 x 18	Tightening torque	9 Nm (6.5 ftlb.)
Nut securing solenoid valve to chain housing cover	M6	Tightening torque	9 Nm (6.5 ftlb.)
Screw for chain housing cover on cylinder bank 2	M6 x 22 - M6 x 12/replace, observe specified tightening sequence	Tightening torque	9 Nm (6.5 ftlb.)
Screw for solenoid hydraulic valve for valve lift adjustment	Replace following removal.	Initial tightening	3 Nm (2 ftlb.)
Screw for solenoid hydraulic valve for valve lift adjustment	Replace following removal.	Torque angle	+ 90°
Screw for right cylinder head	Replace following removal.	Initial tightening	30 Nm (22 ftlb.)
Screw for right cylinder head	Replace following removal.	Tightening torque	50 Nm (37 ftlb.)
Screw for right cylinder head	Replace following removal.	Torque angle	+ 90°
Screw for right cylinder head	Replace following removal.	Final tightening	+ 90°
Screw for right cylinder head	Replace following removal.	Initial tightening	10 Nm (7.5 ftlb.)
Screw for right cylinder head	Replace following removal.	Torque angle	+ 90°
Screw for right cylinder head	Replace following removal.	Initial tightening	8 Nm (6 ftlb.)
Screw for right cylinder head	Replace following removal.	Torque angle	+ 90°
Screw for left cylinder head	Replace following removal.	Initial tightening	30 Nm (22 ftlb.)
Screw for left cylinder head	Replace following removal.	Tightening torque	50 Nm (37 ftlb.)
Screw for left cylinder head	Replace following removal.	Torque angle	+ 90°
Screw for left cylinder head	Replace following removal.	Final tightening	+ 90°
Screw for left cylinder head	Replace following removal.	Initial tightening	10 Nm (7.5 ftlb.)
Screw for left cylinder head	Replace following removal.	Torque angle	+ 90°
Screw for left cylinder head	Replace following removal.	Initial tightening	8 Nm (6 ftlb.)
Screw for left cylinder head	Replace following removal.	Torque angle	+ 90°
Screws on timing chain tensioner		Tightening torque	9 Nm (6.5 ftlb.)
Bearing pins for tensioning rail for left cylinder bank		Tightening torque	23 Nm (17 ftlb.)
Screws on guide rail for left cylinder bank		Tightening torque	9 Nm (6.5 ftlb.)
Bearing pins for guide rail for right cylinder bank	Replace following removal.	Initial tightening	5 Nm (3.5 ftlb.)
Bearing pins for guide rail for right cylinder bank	Replace following removal.	Torque angle	+ 45°
Bearing pins for tensioning rail for right cylinder bank		Tightening torque	23 Nm (17 ftlb.)
Screws for camshaft bearing covers	Replace following removal.	Tightening torque	9 Nm (6.5 ftlb.)
Screw for stopper on camshaft		Tightening torque	9 Nm (6.5 ftlb.)
Camshaft controller for outlet camshaft		Initial tightening	30 Nm (22 ftlb.)
Camshaft controller for outlet camshaft		Final tightening	+ 35°
Camshaft controller for intake camshaft		Initial tightening	30 Nm (22 ftlb.)
Camshaft controller for intake camshaft		Final tightening	+ 35°
Screws for cylinder head cover on right cylinder bank	Replace following removal.	Initial tightening	8 Nm (6 ftlb.)
Screws for cylinder head cover on right cylinder bank	Replace following removal.	Torque angle	+ 90°
Screws for cylinder head cover on left cylinder bank	Replace following removal.	Initial tightening	8 Nm (6 ftlb.)
Screws for cylinder head cover on left cylinder bank	Replace following removal.	Torque angle	+ 90°
Nuts securing line bracket to cylinder head cover		Tightening torque	9 Nm (6.5 ftlb.)
Nuts securing holder to cylinder head cover		Tightening torque	9 Nm (6.5 ftlb.)
Maximum permissible distortion on cylinder head		Control value	0.1 mm
Minimum dimension on cylinder head		Control value	138 mm	+/- 0.1 mm
Screw on guide tube for oil dipstick	Replace O-ring.	Tightening torque	9 Nm (6.5 ftlb.)
Oil filter cover		Tightening torque	25 Nm (19 ftlb.)
Screw on oil filter housing	M6 x 50 (6ea.)/replace	Initial tightening	5 Nm (3.5 ftlb.)
Screw on oil filter housing	M6 x 50 (6ea.)/replace	Tightening torque	8 Nm (6 ftlb.)
Screw on oil filter housing	M6 x 50 (6ea.)/replace	Final tightening	90°
Screw securing oil line holder to oil filter housing	M6 x 16	Tightening torque	9 Nm (6.5 ftlb.)
Screw for oil pan	M6 x 18 (16ea.)/replace, observe tightening sequence!	Initial tightening	3 Nm (2 ftlb.)
Screw for oil pan	M6 x 18 (16ea.)/replace, observe tightening sequence!	Final tightening	+ 90°
Screw securing oil intake tube to oil pump	!M6 x 26	Initial tightening	8 Nm (6 ftlb.)
Screw securing oil intake tube to oil pump	!M6 x 26	Final tightening	+ 90°
Screw securing shaft cover to oil guide housing	M6 x 16 (2 ea.)	Tightening torque	9 Nm (6.5 ftlb.)
Screw securing oil pump sprocket to oil pump	M8 x 22/replace	Initial tightening	20 Nm (15 ftlb.)
Screw securing oil pump sprocket to oil pump	M8 x 22/replace	Final tightening	+ 90°
Screw securing oil windage tray to crankcase	M6 x 18 (3ea.)/replace, tighten crosswise	Initial tightening	3 Nm (2 ftlb.)
Screw securing oil windage tray to crankcase	M6 x 18 (3ea.)/replace, tighten crosswise	Final tightening	+ 90°
Screw securing oil windage tray to crankcase	M6 x 30 (13ea.)/replace, tighten crosswise	Initial tightening	3 Nm (2 ftlb.)
Screw securing oil windage tray to crankcase	M6 x 30 (13ea.)/replace, tighten crosswise	Final tightening	+ 90°
Screw securing oil pump to crankcase	M6 x 60 (3ea.)/replace	Initial tightening	8 Nm (6 ftlb.)
Screw securing oil pump to crankcase	M6 x 60 (3ea.)/replace	Final tightening	+ 90°
Screw securing oil guide housing to crankcase	M6 x 22 (19ea.)/replace, observe tightening sequence	Initial tightening	3 Nm (2 ftlb.)
Screw securing oil guide housing to crankcase	M6 x 22 (19ea.)/replace, observe tightening sequence	Final tightening	+ 90°
Oil drain plug	M14 x 1.5, oil thread	Tightening torque	30 Nm (22 ftlb.)
Screw for oil level sensor on oil pan	M6 x 25 (3x)/replace	Tightening torque	9 Nm (6.5 ftlb.)
Screw securing chain housing cover to oil windage tray	M6 x 25 (2ea.)/replace, observe tightening sequence	Initial tightening	3 Nm (2 ftlb.)
Screw securing chain housing cover to oil windage tray	M6 x 25 (2ea.)/replace, observe tightening sequence	Final tightening	+ 90°
Screw securing chain housing cover to oil guide housing	M6 x 25 (6ea.)/replace, observe tightening sequence	Initial tightening	3 Nm (2 ftlb.)
Screw securing chain housing cover to oil guide housing	M6 x 25 (6ea.)/replace, observe tightening sequence	Final tightening	+ 90°
Screw on guide rail for oil pump		Tightening torque	9 Nm (6.5 ftlb.)
Screw on guide rail for oil pump		Tightening torque	9 Nm (6.5 ftlb.)
Screw for oil guide housing holder	M6 x 16	Tightening torque	8 Nm (6 ftlb.)
Oil-pressure sender	Replace	Initial tightening	3 Nm (2 ftlb.)
Oil-pressure sender	Replace	Final tightening	+ 45°
Oil pressure switch		Tightening torque	20 Nm (15 ftlb.)
Screw for oil temperature sensor	M6 x 18	Tightening torque	9 Nm (6.5 ftlb.)
Screw for oil pressure control valve	M6 x 18	Tightening torque	9 Nm (6.5 ftlb.)
Screw securing oil/water heat exchanger to crankcase	M6 x 18 (8 ea.)	Tightening torque	9 Nm (6.5 ftlb.)
Screw plug	M22 x 1.5	Initial tightening	40 Nm (30 ftlb.)
Screw plug	M22 x 1.5	Final tightening	+ 45°
Screw for coolant temperature sensor at engine outlet	M6 x 18	Tightening torque	9 Nm (6.5 ftlb.)
Screw for coolant temperature sensor on cylinder housing	M6 x 18	Tightening torque	9 Nm (6.5 ftlb.)
Screw for coolant temperature sensor on cylinder head	M6 x 18	Tightening torque	9 Nm (6.5 ftlb.)
Screw (radiator outlet)		Tightening torque	9 Nm (6.5 ftlb.)
Screw securing temperature sensor for fan	M6	Tightening torque	9 Nm (6.5 ftlb.)
Screws on additional coolant pump for high-temperature system (P5)		Tightening torque	1.5 Nm (1 ftlb.)
Screw on high-temperature circuit temperature sensor		Tightening torque	8 Nm (6 ftlb.)
Screw on low-temperature circuit temperature sensor		Tightening torque	8 Nm (6 ftlb.)
Screws on heat exchanger for high-temperature and low-temperature circuit	M8	Tightening torque	20 Nm (15 ftlb.)
Screws on change-over valve for low-temperature circuit (UVW1)		Tightening torque	8 Nm (6 ftlb.)
Nuts on change-over valve for low-temperature circuit (UVW2)		Tightening torque	8 Nm (6 ftlb.)
Nuts on change-over valve for low-temperature circuit (UVW3)		Tightening torque	8 Nm (6 ftlb.)
Nuts on directional-control valve for high-temperature circuit (WMV1)		Tightening torque	8 Nm (6 ftlb.)
Screws for coolant reservoir holder (low-temperature)		Tightening torque	8 Nm (6 ftlb.)
Screw for radiator mounting	TP7-22 x 1	Tightening torque	14 Nm (10.5 ftlb.)
Upper screw on radiator mounting holder	M6 x 64	Tightening torque	8 Nm (6 ftlb.)
Lower screw on radiator mounting holder	TP7-22 x 1	Tightening torque	14 Nm (10.5 ftlb.)
Screw securing holder to lower radiator mounting (Off-road)	M6 x 25	Tightening torque	8 Nm (6 ftlb.)
Screw for radiator mounting holder (Off-road)	TP6.0x 17.0-Q	Tightening torque	6 Nm (4.5 ftlb.)
Screw on motor for cooling-air flaps, centre	TP4 x 16-Q	Tightening torque	2, 5 Nm (1.5 ftlb.)
Screw on cooling-air flap frame	M6 x 30/8 each.	Tightening torque	8 Nm (5.9 ftlb.)
securing lower radiator mounting reinforcement to radiator holder		Tightening torque	6 Nm (4.4 ftlb.)
securing connecting piece screw to lower radiator mounting reinforcement		Tightening torque	6 Nm (4.4 ftlb.)
Nut securing holder for additional coolant pump (high-temperature system P2)		Tightening torque	9 Nm (6.6 ftlb.)
Double screw for additional coolant pump (high-temperature system P2)	M6 x 14/M6 x 14	Tightening torque	9 Nm (6.6 ftlb.)
Screws securing additional coolant pump (high-temperature system P2) to holder		Tightening torque	1.5 Nm (1.1 ftlb.)
Screws securing pulley to coolant pump	M6 x 10 (4 ea.)	Tightening torque	9 Nm (6.5 ftlb.)
Screws securing coolant pump to engine block	M6 x 20 (7 ea.)	Initial tightening	9 Nm (6.5 ftlb.)
Screws securing coolant pump to engine block	M6 x 20 (7 ea.)	Final tightening	9 Nm (6.5 ftlb.)
Screws for coolant pipes		Tightening torque	9 Nm (6.5 ftlb.)
Screws for coolant pipes		Tightening torque	9 Nm (6.5 ftlb.)
Screws for coolant pipes		Tightening torque	9 Nm (6.5 ftlb.)
Screws on coolant control valve		Tightening torque	9 Nm (6.5 ftlb.)
Screw for vent line	M6 x 16	Tightening torque	9 Nm (6.5 ftlb.)

Information

The tightening steps in the tightening sequences Plate 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 (3.5 ftlb.) Nm
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 (9.5 ftlb.) Nm	M6	> Tightening torque 16 Nm (12 ftlb.)
M8	> Tightening torque 23 Nm (17 ftlb.)	M8	> Tightening torque 33 (24 ftlb.) Nm	M8	> Tightening torque 39 Nm (29 ftlb.)
M10	> Tightening torque 45 Nm (33 ftlb.)	M10	> Tightening torque 65 (48 ftlb.) Nm	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.)	M10x 1.25	> Tightening torque 85 Nm (63 ftlb.)
M12	> Tightening torque 80 Nm (59 ftlb.)	M12	> Tightening torque 115 (85 ftlb.) Nm	M12	> Tightening torque 135 Nm (100 ftlb.)
M12 x 1.25	> Tightening torque 90 Nm (67 ftlb.)	M12 x 1.25	> Tightening torque 125 (93 ftlb.) Nm	M12x 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 (89 ftlb.) Nm	M12x 1.5	> Tightening torque 145 Nm (107 ftlb.)
M14	> Tightening torque 130 Nm (96 ftlb.)	M14	> Tightening torque 180 (133 ftlb.) Nm	M14	> Tightening torque 220 Nm (163 ftlb.)
M16	> Tightening torque 200 Nm (148 ftlb.)	M16	> Tightening torque 280 (207 ftlb.) Nm	M16	> Tightening torque 335 Nm (248 ftlb.)