Technical Values: Overview

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

Location	Description	Type	Basic value
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 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.)
Engine mount bolt on engine support	M12 x 1.5 x 70 / replace	Initial tightening	90 Nm (66.4 ftlb.)
Engine mount bolt on engine support		Final tightening	+ 90°
Engine mounting bolt on front axle carrier	M8 x 50	Tightening torque	30 Nm (22.1 ftlb.)
Screw securing engine support to crankcase	M10 x 35	Tightening torque	55 Nm (40.6 ftlb.)
Engine mounting bolt on front axle carrier	M10 x 50	Tightening torque	55 Nm (40.6 ftlb.)
Screw for torque support	M10 x 75	Tightening torque	55 Nm (41 ftlb.)
Screw for torque support bracket	M8 x 55/(V6 Turbo: M8 x 45)	Tightening torque	23 Nm (17 ftlb.)
Torque support bracket upper part to lower part	M10 x 35	Tightening torque	55 Nm (41 ftlb.)
Screw for torque support mounting bracket	M8 x 35	Tightening torque	23 Nm (17 ftlb.)
Screws for oil separator		Tightening torque	9 Nm (6.5 ftlb.)
Positive crankcase ventilation hose to turbocharger	Special screw, M6 x 16	Tightening torque	9 Nm (6.5 ftlb.)
Screw for vent line	M6 x 16	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.)
Screw for crankcase cover, front	M6 x 20 (10 ea.), observe tightening sequence!	Tightening torque	9 Nm (6.5 ftlb.)
Press-in depth of sealing ring on crankshaft, front		Control value	1.5 mm
Screw plug, M22 x 1.5 (2 x water rail plugs/2 x oil duct plugs)		Initial tightening	30 Nm
Screw plug, M22 x 1.5 (2 x water rail plugs/2 x oil duct plugs)		Final tightening	+ 30°
Screw plug, M14 x 1.5		Tightening torque	15 Nm (11 ftlb.)
Screw plug, M14 x 1.5 (crankshaft staking bore)	Dry	Tightening torque	25 Nm (19 ftlb.)
Screw plug, M14 x 1.5 (crankshaft staking bore)	Oiled	Tightening torque	20 Nm (15 ftlb.)
Thrust-bearing screws securing lower part of crankcase to upper part of crankcase	M10 x 111/Step 1	Tightening torque	15 Nm (11 ftlb.)
Thrust-bearing screws securing lower part of crankcase to upper part of crankcase	Step 2	Tightening torque	30 Nm (22 ftlb.)
Thrust-bearing screws securing lower part of crankcase to upper part of crankcase	Step 3	Torque angle	+ 200°
Thrust-bearing screws securing lower part of crankcase to upper part of crankcase	Step 4: Loosen (by about 2 turns)	Torque angle	720°
Thrust-bearing screws securing lower part of crankcase to upper part of crankcase	Step 5	Tightening torque	30 Nm (22 ftlb.)
Thrust-bearing screws securing lower part of crankcase to upper part of crankcase	Step 6	Torque angle	70°
Thrust-bearing screws securing lower part of crankcase to upper part of crankcase	M8 x 30	Initial tightening	10 Nm (7.5 ftlb.)
Thrust-bearing screw securing lower part of crankcase to upper part of crankcase		Final tightening	+ 50°
Screw on belt tensioner damper (generator) at the top	M8 x 60	Tightening torque	32 Nm
Screw on belt tensioner damper (generator) below	M8 x 33	Tightening torque	32 Nm
Crankshaft vibration damper	Replace screw	Initial tightening Step 1	50 Nm
Crankshaft vibration damper	Replace screw	Initial tightening Step 2	100 Nm
Crankshaft vibration damper	Replace screw	Final tightening	180 Grad
Screw belt tensioner damper (air-conditioning compressor)	M8 x 25	Tightening torque	23 Nm
Deflection roller		Torque	25 Nm
Deflection roller		Torque	25 Nm
Screw securing coolant pump drive gear wheel to intermediate shaft	M10 x 20/replace	Initial tightening	15 Nm (11 ftlb.)
Screw securing coolant pump drive gear wheel to intermediate shaft		Final tightening	+ 45°
Intermediate shaft cover to crankcase	M6 x 16 (8 ea.)	Tightening torque	9 Nm (6.5 ftlb.)
Screw securing bracing gear wheel to intermediate shaft	M10 x 32/replace	Initial tightening	15 Nm (11 ftlb.)
Screw securing bracing gear wheel to intermediate shaft		Final tightening	+ 45°
Connecting rod cap to connecting rod	M9 x 1.25 x 50; Step 1 Tightening sequence as synchronous as possible; use new bolts	Tightening torque	3 Nm (2 ftlb.)
Connecting rod cap to connecting rod	M9 x 1.25 x 50; Step 2 Tightening sequence as synchronous as possible; use new bolts	Tightening torque	8 Nm (6 ftlb.)
Connecting rod cap to connecting rod	M9 x 1.25 x 50; Step 3 Tightening sequence as synchronous as possible; use new bolts	Tightening torque	20 Nm
Connecting rod cap to connecting rod	M9 x 1.25 x 50; Step 4 Tightening sequence as synchronous as possible; use new bolts	Tightening torque	40 Nm (30 ftlb.)
Connecting rod cap to connecting rod	M9 x 1.25 x 50; Step 5 Tightening sequence as synchronous as possible; use new bolts	Torque angle	90°
Screws for chain housing cover	M6 x 25 (19 ea.), observe tightening sequence	Tightening torque	9 Nm (6.5 ftlb.)
Collar axle, M8 - tensioning rail on bank 1	Always replace/fit without oil or grease	Tightening torque	23 Nm (17 ftlb.)
Collar axle with shoulder -guide rail on bank 1	M6 x 12 x 25	Tightening torque	9 Nm (6.5 ftlb.)
Collar axle - guide rail on bank 1		Tightening torque	9 Nm (6.5 ftlb.)
Screws for chain tensioner	M6 x 20 (2 ea.)	Tightening torque	9 Nm (6.5 ftlb.)
Screws for guide rail on bank 2	M6 x 16 (3 ea.)	Tightening torque	9 Nm (6.5 ftlb.)
Screws for chain tensioner	M6 x 20 (2 ea.)	Tightening torque	9 Nm (6.5 ftlb.)
Collar axle, M8 - tensioning rail on bank 2	Always replace/fit without oil or grease	Tightening torque	23 Nm (17 ftlb.)
Screw on actuator for camshaft controller	M6 x 16	Tightening torque	9 Nm (6.5 ftlb.)
Central screw for camshaft controller	Replace O-ring	Initial tightening	27 Nm (20 ftlb.)
Central screw for camshaft controller	Replace O-ring	Final tightening	+ 30 Nm (22 ftlb.)
Central screw for camshaft controller	Replace O-ring	Final tightening	+ 35°
Screw for valve lift adjustment	M5 x 20	Tightening torque	5 Nm (3.5 ftlb.)
Screws for cylinder head cover	M6 x 35/observe tightening sequence	Initial tightening	9 Nm (6.5 ftlb.)
Screws for cylinder head cover		Final tightening	9 Nm (6.5 ftlb.)
Screws for upper chain case lid	M6 x 20	Tightening torque	9 Nm (6.5 ftlb.)
Screw plug for cylinder head cover	M10 x 1/Do not reuse screw plug - new torque specification	Tightening torque	15 Nm (11 ftlb.)
Screw plug for cylinder head cover	M10 x 1/always replace	Initial tightening torque	5 Nm (3.5 ftlb.)
Screw plug for cylinder head cover	M10 x 1/always replace	Final tightening angle	45°
Screw for camshaft bearing cover	M6 x 35/replace/observe tightening sequence	Initial tightening	3 Nm (2 ftlb.)
Screw for camshaft bearing cover		Final tightening	+ 30°
Nuts on chain case cover, top		Tightening torque	9 Nm (6.5 ftlb.)
Cylinder head to upper part of crankcase	BM 10 x 170 x 120/Step 1	Tightening torque	15 Nm (11 ftlb.)
Cylinder head to upper part of crankcase	Step 2	Tightening torque	30 Nm (22 ftlb.)
Cylinder head to upper part of crankcase	Step 3	Torque angle	+ 300°
Cylinder head to upper part of crankcase	Step 4 Loosen (by about 2 turns)	Torque angle	- 720°
Cylinder head to upper part of crankcase	Step 5	Tightening torque	30 Nm (22 ftlb.)
Cylinder head to upper part of crankcase	Step 6	Torque angle	120°
Cylinder head to crankcase	M6 x 35	Tightening torque	10 Nm (7.5 ftlb.)
Cylinder head to crankcase	M6 x 35	Torque angle	25°
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 for oil filter housing	M6 x 50 (6 ea.)	Initial tightening	5 Nm (3.5 ftlb.)
Screw for oil filter housing	M6 x 50 (6 ea.)	Final tightening	9 Nm (6.5 ftlb.)
Screw for oil pan	M6 x 16 (18 ea.), observe tightening sequence!	Tightening torque	9 Nm (6.5 ftlb.)
Step 1: Screw for oil guide housing	M6 x 20 (21 ea.), observe tightening sequence!	Tightening torque	9 Nm (6.5 ftlb.)
Step 2: Screw for oil guide housing	M6 x 20 (21 ea.), observe tightening sequence!	Tightening torque	9 Nm (6.5 ftlb.)
Screws for oil level sensor	M6 x 25 (3 ea.)	Tightening torque	9 Nm (6.5 ftlb.)
Screw plug on oil pan		Tightening torque	30 Nm (22 ftlb.)
Screw for oil pump sprocket	M8 x 22/replace	Initial tightening	20 Nm (15 ftlb.)
Screw for oil pump sprocket		Final tightening	+ 90°
Screws securing chain guard to oil pump	M6 x 20 (2 ea.)	Tightening torque	9 Nm (6.5 ftlb.)
Screw for oil pump	M6 x 60 (3 ea.)	Tightening torque	9 Nm (6.5 ftlb.)
Screw on guide rail for oil pump drive	M6 x 16 (2 ea.)	Tightening torque	9 Nm (6.5 ftlb.)
Screw for oil windage tray	M6 x 20 (10 ea.)	Tightening torque	9 Nm (6.5 ftlb.)
Screw for oil pressure control valve	M6 x 20	Tightening torque	9 Nm (6.5 ftlb.)
Screws for oil intake tube	M6 x 20	Tightening torque	9 Nm (6.5 ftlb.)
Oil pressure switch		Tightening torque	20 Nm (15 ftlb.)
Screw for oil temperature sensor	M6 x 12	Tightening torque	9 Nm (6.5 ftlb.)
Oil pressure sensor		Tightening torque	20 Nm (15 ftlb.)
Screw for oil spray jet control valve	M6 x 12	Tightening torque	9 Nm (6.5 ftlb.)
Screws for oil cooler	M6 x 20	Initial tightening	5 Nm (3.5 ftlb.)
Screws for oil cooler	M6 x 20	Final tightening	+ 9 Nm (6.5 ftlb.)
Coolant regulator to housing	Screws, M6 x 30 (3 ea.)	Tightening torque	9 Nm (6.5 ftlb.)
Coolant regulator housing	Screws, M6 x 40 (3 ea.)	Tightening torque	9 Nm (6.5 ftlb.)
Mounting for coolant regulator housing and coolant pump	Screws, M6 x 25 (13 ea.)	Tightening torque	9 Nm (6.5 ftlb.)
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.)
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)	TP6.0 x 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.)
Screw for front coolant pipe		Tightening torque	9 Nm (6.5 ftlb.)
Screw securing coolant line to engine/transmission	M6 x 16	Tightening torque	9 Nm (6.5 ftlb.)
Screw securing coolant line to engine/transmission	M6 x 20	Tightening torque	9 Nm (6.5 ftlb.)
Stud on additional coolant pump for heater		Tightening torque	9 Nm (6.5 ftlb.)
Screw for heat shield on additional coolant pump	M6	Tightening torque	9 Nm (6.5 ftlb.)
Screw for control valve		Tightening torque	9 Nm (6.5 ftlb.)
Screw securing coolant line to engine	M6	Tightening torque	9 Nm (6.5 ftlb.)
Screw for coolant pipe	M6	Tightening torque	8 Nm (6 ftlb.)
M6 screws for coolant lines	M6 Stahl 8.8	Tightening torque	9 Nm (6.5 ftlb.)
Coolant reservoir	M6	Tightening torque	9 Nm (6.5 ftlb.)
Screw for left wheel housing coolant pipe		Tightening torque	9 Nm (6.5 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.)