Z Series E85 Z4 2.5Si (N52) ROADST
31 90 ...
Front axle troubleshooting
Follow troubleshooting for steering/shock absorbers.
Fault
Cause
Remedy
Grinding noise (louder when
negotiating bends)
Wheel bearings faulty
Replace wheel bearings
Vibration
Wheel imbalance
Balance wheels
Radial/lateral rim runout
Check rims, replace if necessary
Radial tyre runout
Match or replace tyres
Steering-wheel shake
Wheel imbalance
Balance wheels
Radial/lateral rim runout
Check rims, replace if necessary
Rubber mount of control arm faulty
Replace rubber mounts on both
control arms
Ball joint/supporting joint of control
arm worn
Replace control arm/ball joint
Refer to troubleshooting for steering/shock absorbers
Steering wheel play too high
Rubber mount of control arm faulty
Replace rubber mounts on both
control arms
Ball joint/supporting joint of control
arm worn
Replace control arm/ball joint
Refer to troubleshooting for steering
Steering wheel inclination
Rubber mount of control arm faulty
Replace rubber mounts on both
control arms
Ball joint/supporting joint of control
arm worn
Replace control arm/ball joint
Track arm on steering knuckle bent
Replace steering knuckle
Refer to troubleshooting for steering and rear axle
Rattling noise
Bolts for reinforcement
plate/reinforcement loose
Tighten down bolts (refer to
Removing and installing/replacing
reinforcement plate/reinforcement ).
Bolts for front axle carrier to engine
carrier loose
Replace bolts (refer to Lowering
front axle carrier)
Bolt for spring strut to swivel bearing
loose
Replace bolt & nut (refer to
Removing and installing front spring
strut )
Ball joint/supporting joint of control
arm worn
Replace control arm/ball joint
Rubber mounts for stabilizer bar
bracket faulty
Replace both rubber mounts for
stabilizer bar bracket (refer to
Removing and installing/replacing
front stabilizer bar )
RA Front axle troubleshooting
BMW AG - TIS
13.02.2013 11:42
Issue status (12/2007) Valid only until next DVD is issued
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