In the Bmw E34/E32, control arms are attached to the front crossmember
through rubber bushings and to the steering arm by ball joints.
The bushing can be replaced, but the whole arm is cheap so better
change the whole arm.
Please if you love your BMW use
parts only!!!! Else you will change your arms every year...
- Clunk noise (cause by defective ball joint).
- Bushings torn or with small cracks.
1. Raise the front of the E34, support with jacks and remove the
2. Remove the 3 bottom bolts holding the strut assembly. You can
remove the control arm without removing the whole strut assembly.
3. Break the two 19mm nut on the ball joint and
on the bushing side.
4. Use a pickle fork (actually works fine) to remove the ball
joint or a tie-rod puller (much better).
5. Undo the 22mm nut and bolt attaching the control arm to the frame.
Remove the control arm.
If the ball joint is turning while removing the nut, use a good
pair of vice grip to hold the ball joint.
6. If the ball joint turns while tightening the nut, use vice grips
or pliers to hold the bottom of the ball joint to the steering plate.
7. Installation is reverse of removal but don't tighten the 22mm nut
holding the arm to the frame all the way. You will need to lower
the car to the ground to tighten the thrust arm bushing
nut under load (78 Nm, 57 ft-lb). If you have ramps it's time to use
All BMW E34s
Control arm Left: 31 12 1 139 991
Control arm Right: 31 12 1 139 992