Z Series E86 Z4 3.0Si (N52) COUPE
33 90 ...
Rear axle troubleshooting
Observe troubleshooting for shock absorbers.
Fault
Cause
Remedy
Grinding noise (only when cornering) Refer to Troubleshooting brake system
Wheel bearings faulty
Replace wheel bearings
Vibration (90 - 160 km/h)
Wheel imbalance
Balance wheels
Radial/lateral rim runout
Check rims, replace if necessary
Radial tyre runout
Match or replace tyres
Imbalance in output shaft
Replace output shaft
Drumming
Rubber mount of final drive
suspension faulty
Replace rubber mount
Rubber mount of rear axle carrier
faulty
Replace rubber mount
Rattling noise
Refer to Troubleshooting for shock absorbers.
Stabilizer link loose or defective
Check screw connection, replace
stabilizer link if necessary
Rubber mount of rear axle carrier
loose or faulty
Check seat, replace rubber mount if
necessary
Tail-end skid when braking with
each side on different road surface
Rubber mount/ball joint of trailing
arms faulty
Replace rubber mount/ball joint
Hesitation of rear wheels with hard
braking
Rubber mount/ball joint of trailing
arms faulty
Replace rubber mount/ball joint
Refer to Troubleshooting for shock absorbers.
Poor straight-running stability
(steering wheel inclination)
Rubber mount of rear axle carrier
faulty
Replace rubber mount
Rubber mount of control arm faulty
Replace rubber mount
Rubber mount/ball joint of trailing
arms faulty
Replace rubber mount/ball joint
Rear axle alignment incorrectly
adjusted
Carry out chassis/wheel alignment
check, align rear axle if necessary
Steering wheel inclination: Refer to troubleshooting for steering
Unsteady taking of curves due to
self-steering or poor rear end track
stability
Rubber mount of rear axle carrier
faulty
Replace rubber mount
Rubber mount of final drive
suspension faulty
Replace rubber mount
Refer to Troubleshooting for shock absorbers.
Excessive tyre wear
RA Rear axle troubleshooting
BMW AG - TIS
08.02.2013 11:42
Issue status (12/2007) Valid only until next DVD is issued
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