Whining, whistling or grinding noises

Howling, Whistling Or Grinding Noises

The following list shows all the currently known causes of faults that can lead to howling, whistling or grinding noises from the area of the rear axle.

Howling, whistling or grinding noises from the area of the rear axle
Run a visual and/or function check on the basis of the list and sample illustrations below. Determine the fault cause on the vehicle and enter the fault code in the keypad field in the next test step. After entering the fault code, the repair instructions are displayed.

No. Possible cause of fault:
1 Vibration dampers on the rear axle or rear axle differential (if fitted) are loose or damaged
3 Heat protection plate of the exhaust system loose or damaged
4 Screws on the drive train loose or tightened without correct torque

Cause of fault 1







Cause of fault 2







Cause of fault 3