33 31 503 Lowering/raising rear axle support (AWD)
Special tools required:
Failure to comply with the following instructions may result in the vehicle slipping off the lifting platform and critically injuring other persons.
Load the luggage compartment with a minimum of 100 kg before lowering/removing the rear axle support. This prevents the vehicle from tilting or sliding off the vehicle hoist.
When supporting components, make sure that:
- the vehicle can no longer be raised or lowered
- the vehicle does not lift off the locating plates on the vehicle hoist.
Observe SAFETY INSTRUCTIONS for raising the vehicle
In order to avoid damage to vehicle hoist, perform weight compensation on vehicle.
Necessary preliminary tasks:
- Remove COMPLETE EXHAUST SYSTEM with heat shield at center.
- Remove UNDERBODY COVER at right and left.
Engage special tool 31 5 251 with a 2nd person helping completely on workshop jack 00 2 030 .
Insert special tools 31 5 255 in telescopic supports of a profile rail pair.
Insert special tools 31 5 253 in telescopic supports of other profile rail pair.
The jacking points on the left side are shown.
Align special tools 31 5 25531 5 253 and 31 5 251 to rear axle support.
Support rear axle support by operating workshop jack 00 2 030 .
Tie down rear axle support 33 5 206 to the special tool using a tensioning strap 31 5 251 .
Release screws (2) at rear axle support (1). (right-hand side is identical).
Tightening torque 33 31 1AZ .
Installation note:
Check threads for damage; if necessary, repair with HELICOIL THREAD INSERTS .
Undo screw (1) on the cross member (2). (right-hand side is identical).
Tightening torque 33 31 2AZ .
Installation note:
Check threads for damage; if necessary, repair with HELICOIL THREAD INSERTS .
Lower rear axle support by max. A = 40 mm.