31 12 Control Arms and Struts

CONTROL ARMS AND STRUTS TIGHTENING TORQUES

-	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