Upper Front Control Arm (Traction Strut), Removing And Installing - BMW 5251 Service Manual

330-25
Rear Suspension
Remove rear control arm:
Remove inner control arm bolt (A). Push shock absorber
out of the way to slide bolt out.
Detach plastic wiring harness support (B).
Remove outer control arm ball joint nut (C). Press ball joint
out of rear wheel bearing carrier.
Installation is reverse of removal, noting the following:
* Always use new self-locking nuts.
Maite sure ail threaded bolts, nuts and mating surfaces are
clean.
Inner control arm mounting bolt must thread to front (bolt
.
head at rear).
Make sure long lower shock absorber bushing fits in hole
in suspension swing arm.
*
Tighten fasteners to final torque only after vehicle has
been lowered and suspension has settled.
Have car professionally aligned when job is complete.
Tightening torques
Control arm to subframe (M12) 110 Nm (81 ft-ib)
Control arm ball joint to wheel bearing 142 Nm (105 ft-lb)
carrier (M14)
Quick coupling screw to air shocit absorber
2 Nm (18 in-lb)
Road wheel to hub
Shoclc absorber to lower control arm 127 Nm
(94
it-lb)
Upper front control arm (traction strut),
removing and installing
-
Raise rear end of car and remove wheel.
WARNING-
Maice sure the car is firmly supported on jack stands de-
signed for the purpose. Place jack stands underneath struc-
tural chassis points. Do not place jack stands under
<
Mark location of inner control arm eccentric washer (rear toe