33 90 ... Rear Axle Troubleshooting
WARNING: This page is about a different car, the 2008 BMW Alpina and 2007 BMW Alpina. However, it is still accessible from the selected car via links, so may be relevant.
Observe troubleshooting for shock absorbers .
REAR AXLE TROUBLESHOOTING CHART
| Fault | Cause | Remedy |
|---|---|---|
| Grinding noise (only when cornering) | Diagnose brake system | |
| Wheel bearings faulty | Replace wheel bearings . See 41 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 . See 33 21 ... PRESSING OUTPUT SHAFT OUT OF DRIVE FLANGE AND DRAWING IN (OUTPUT SHAFT REMOVED FROM REAR DIFFERENTIAL) . | |
| Drumming | Rubber mount of final drive suspension faulty | Replace rubber mount . See 33 17 004 REPLACING ALL FRONT RUBBER MOUNTS FOR REAR DIFFERENTIAL MOUNTING or 33 17 005 REPLACING RUBBER MOUNT FOR REAR DIFFERENTIAL MOUNTING AT REAR . |
| Rubber mount of rear axle carrier faulty | Replace rubber mount . See 33 17 004 REPLACING ALL FRONT RUBBER MOUNTS FOR REAR DIFFERENTIAL MOUNTING or 33 17 005 REPLACING RUBBER MOUNT FOR REAR DIFFERENTIAL MOUNTING AT REAR . | |
| Rattling noise | Refer to 33 90 ... TROUBLESHOOTING SHOCK ABSORBER . | |
| Stabilizer link loose or defective | Check screw connection, replace stabilizer link if necessary. See 33 55 040 REPLACING STABILIZER LINK FOR REAR LEFT OR RIGHT STABILIZER . | |
| Rubber mount of rear axle carrier loose or faulty | Check seat, replace rubber mount if necessary. See 33 17 004 REPLACING ALL FRONT RUBBER MOUNTS FOR REAR DIFFERENTIAL MOUNTING or 33 17 005 REPLACING RUBBER MOUNT FOR REAR DIFFERENTIAL MOUNTING AT REAR . | |
| Poor straight-running stability (steering wheel inclination) | Rubber mount of rear axle carrier faulty | Replace rubber mount . See 33 17 004 REPLACING ALL FRONT RUBBER MOUNTS FOR REAR DIFFERENTIAL MOUNTING or 33 17 005 REPLACING RUBBER MOUNT FOR REAR DIFFERENTIAL MOUNTING AT REAR . |
| Rubber mount/ball joint of control or guide arm faulty | Replace control or guide arm . See 33 32 071 REPLACING ONE UPPER CONTROL ARM or 33 32 091 REPLACING A GUIDE ARM . | |
| Ball joint in wheel carrier faulty | Replace ball joint . See 33 32 125 REPLACING A BALL JOINT IN LOWER STEERING KNUCKLE / WHEEL CARRIER . | |
| Rubber mount of swinging arm faulty | Replace swinging arm . See 33 32 064 REMOVING AND INSTALLING/REPLACING LEFT OR RIGHT SWINGING ARM . | |
| Rear axle alignment incorrectly adjusted | Carry out chassis/wheel alignment check , align rear axle if necessary. See 32 00 ... CHASSIS/WHEEL ALIGNMENT CHECK PROCEDURE . | |
| Unsteady taking of curves due to self-steering or poor rear end track stability | Rubber mount of rear axle carrier faulty | Replace rubber mount . See 33 17 004 REPLACING ALL FRONT RUBBER MOUNTS FOR REAR DIFFERENTIAL MOUNTING or 33 17 005 REPLACING RUBBER MOUNT FOR REAR DIFFERENTIAL MOUNTING AT REAR . |
| Rubber mount of final drive suspension faulty | Replace rubber mount . See 33 17 004 REPLACING ALL FRONT RUBBER MOUNTS FOR REAR DIFFERENTIAL MOUNTING or 33 17 005 REPLACING RUBBER MOUNT FOR REAR DIFFERENTIAL MOUNTING AT REAR . | |
| Refer to 33 90 ... TROUBLESHOOTING SHOCK ABSORBER . | ||
| Excessive tyre wear | Front or rear axle alignment incorrectly adjusted | Carry out chassis/wheel alignment check , align rear axle if necessary. See 32 00 ... CHASSIS/WHEEL ALIGNMENT CHECK PROCEDURE . |