Trouble Shooting
Locate faults with the help of the BMW Diagnosis System and the following. See TROUBLE SHOOTING table.
For further information, see appropriate FRONT article.
TROUBLE SHOOTING
| Fault | Cause | Remedy |
|---|---|---|
| Actual Height Setting Deviates From Nominal Value | Adjustment Not OK | Adjust Height Setting |
| Back of Vehicle Lowers Below Nominal Height Setting When Loading With The Engine Running | Vehicle Overladen | Check Loading & Reduce To Permitted Axle Load, If Necessary |
| Back of Vehicle Lowers Below Nominal Height Setting When Loading With The Engine Running | ATF Level Too Low | Correct The Oil Level |
| Back of Vehicle Lowers Below Nominal Height Setting When Loading With The Engine Running | Control Rod Mounting Incorrect | Repair Control Rod Mount & Adjust Height Setting |
| Back of Vehicle Lowers Below Nominal Height Setting When Loading With The Engine Running | Lines Damaged | Check Lines & Replace If Necessary |
| Back of Vehicle Lowers Below Nominal Height Setting When Loading With The Engine Running | Pump Pressure Too Low | Check Pump |
| Back of Vehicle Lowers Below Nominal Height Setting When Loading With The Engine Running | Control Valve Defective | Check Control Valve |
| Back of Vehicle Lowers Below Nominal Height Setting When Loading With The Engine Running | Spring Strut Shock Absorber Defective | Check Spring Strut Shock Absorber & Replace If Necessary |
| Back Of Vehicle Fails To Lower To Nominal Setting When Being Unloaded | Control Rod Mounting Incorrect | Repair Control Rod Mount & Adjust Height Setting |
| Back Of Vehicle Fails To Lower To Nominal Setting When Being Unloaded | Lines Damaged | Check Lines & Replace If Necessary |
| Back Of Vehicle Fails To Lower To Nominal Setting When Being Unloaded | Control Valve Defective | Check Control Valve |
| Back Of Vehicle Fails To Lower To Nominal Setting When Being Unloaded | Pump Pressure Too Low | Check Pump |
| Back Of Vehicle Fails To Lower To Nominal Setting When Being Unloaded | Spring Strut Shock Absorber Defective | Check Spring Strut Shock Absorber & Replace If Necessary |
| Vehicle Suspension Extremely Hard | Spring Strut Shock Absorber Defective | Check Spring Strut Shock Absorber & Replace If Necessary |
| Vehicle Suspension Extremely Hard | Gas Pressure Loss In Pressure Accumulator | Check Pressure Accumulator & Replace If Necessary |
| Inadequate Shock Absorber Action, Jolting In Rear Axle | Spring Strut Shock Absorber Defective | Check Spring Strut Shock Absorber & Replace If Necessary |