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WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2010 BMW M5, 2009 BMW M5, 2008 BMW M5, 2008 BMW 550i, and 2007 BMW M5. However, it is still accessible from the selected car via links, so may be relevant.

TIGHTENING SPECIFICATION - CONTROL ARMS AND STRUTS (31 12)

		Type	Thread	Tightening specification	Measure
1AZ	Tension strut to front axle support	E12, E24 / until 5.82		tighten in NORMAL POSITION	80 Nm
		E23		tighten in NORMAL POSITION	135 Nm
		E39, E52		tighten in NORMAL POSITION	110 Nm
		E53		Replace screw tighten in NORMAL POSITION	165 Nm
		E60, E61, E63, E64, E65, E66, E67	M12 10.9	Replace screw & nut tighten in NORMAL POSITION
				Jointing torque	100 Nm
				Torque angle	90 °
		E83		Replace screw tighten in NORMAL POSITION
				Jointing torque	165 Nm
				Torque angle	90 °
2AZ	Control arm to front axle support	E24 / from 5.82, E28, E31, E32, E34, E38, E39 / 8 cyl.		tighten in NORMAL POSITION	77, 5 Nm
		E39 / 6 cyl., E52		tighten in NORMAL POSITION	110 Nm
		E12, E21, E23, E24 / until 5.82		tighten in NORMAL POSITION	85 Nm
		E53, E60, E61, E63, E64, E65, E66, E67, E83	M12 10.9	Replace screw & nut tighten in NORMAL POSITION
				Jointing torque	100 Nm
				Torque angle	90±15 °
3AZ	Control arm (ball joint) on front axle support	E30		Replace nut	85 Nm
		E36, E46		Replace nut	90 Nm
		E30 / Four Wheel Drive		Replace nut	100 Nm
		E85, E86	M14x1.5	Replace nut	80 Nm
4AZ	Control arm to spring strut	E21, E30			65 Nm
5AZ	Control arm to pivot mount/spring strut	E30 / Four Wheel Drive			85 Nm
		E30 / Four Wheel Drive	Polystop nut		93 Nm
		E34 / Four Wheel Drive			80 Nm
6AZ	Control arm on steering knuckle/swivel bearing	E36, E46, E85, E86		Use of impact screwdriver not permitted! Replace nut	65 Nm
		E38		Replace nut	93 Nm
		E39, E53, E52, E83, E60 / Four Wheel Drive, E61 / Four Wheel Drive, E67		Replace nut	80 Nm
		E60 / REAR END, E61 / REAR END, E63, E64, E65, E66		Replace nut	165 Nm
7AZ	Bracket for control arm to engine carrier	E30			42 Nm
		E36			47 Nm
		E46		Replace screws	59 Nm
		E85, E86	M10 10.9	Replace screws	56 Nm
8AZ	Ball joint for control arm to front axle carrier	E34 / Four Wheel Drive, E46 / Four Wheel Drive			77 Nm
9AZ	Control arm to ball joint	E34 / Four Wheel Drive, E46 / Four Wheel Drive			80 Nm
10AZ	Control arm holder to front axle support	E34 / Four Wheel Drive			47 Nm
		E46 / Four Wheel Drive		Replace screws	59 Nm
11AZ	Pressure strut to body	E24 / from 5.82, E28		tighten in NORMAL POSITION	130 Nm
12AZ	Traction strut on tie rod lever/steering knuckle/swivel bearing	E24, E28 / from 5.82, E31, E32, E34, E38			93 Nm
		E39			80 Nm
13AZ	Pressure strut to connecting pipe/front axle support	E31, E32, E34, E38, E39		tighten in NORMAL POSITION	127 Nm
14AZ	Pressure strut to cruciform reinforcement	E31		tighten in NORMAL POSITION	127 Nm
15AZ	Connecting pipe to body	E31, E32, E34			127 Nm
16AZ	Connecting pipe support to body	E31, E32, E34			59 Nm
17AZ	Connecting pipe to trailing spring mount	E24 / from 5.82, E28			60 Nm
18AZ	Leading strut to tie rod arm	E23			85 Nm
19AZ	Tension strut on steering knuckle/swivel bearing	E39, E52, E67			80 Nm
		E60 / REAR END, E61 / REAR END, E63, E64, E65, E66			165 Nm
20AZ	Tension strut to guide joint	E53, E83		Replace nut	80 Nm
		E60 / Four Wheel Drive, E61 / Four Wheel Drive		Replace nut	165 Nm
21AZ	Guide joint to swivel bearing	E53, E60 / Four Wheel Drive, E61 / Four Wheel Drive, E83		Replace screws	60 Nm

Safety Warning

31 12 Control Arms And Struts

Use the Manual With the Right Hardware

When to See a Mechanic