33 31 000 Removing and Installing Complete Rear Axle Support

33 31 000 Removing And Installing Complete Rear Axle Support

Special tools required:







WARNING:
Failure to comply with the following instructions may result in the vehicle slipping off the vehicle hoist and critically injuring other persons.
Load the luggage compartment with a minimum of 100 kg before lowering/removing the rear axle support.
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.







IMPORTANT:
Observe safety informations for raising the vehicle
In order to avoid damage to vehicle hoist, perform weight compensation on vehicle.







Necessary preliminary tasks:
- Remove and suspend propeller shaft at the rear axle differential.
- Remove anti-roll bar at the rear axle.







IMPORTANT:
Risk of damage.
Brake hose must not be exposed to tensile loads.

Release screws (1) and remove brackets.
Tightening torque 34 32 4AZ.







Detach plug connection for right brake pad wear sensor.
Disconnect plug connection on both sides for the pulse sensor.
Disconnect plug connections at the ride height sensor.







Undo output shafts at the rear axle differential.
Undo shock absorber at the trailing arm.
Remove coil springs at the rear.
Disconnect plug connection from the brake anchor plate and unclip cable at the trailing arm.
Undo brake calliper at brake anchor plate.
Guide brake calliper between output shaft and bottom wishbone and tie up.







Remove bearing support for trailing arm from body.







Position the support (1) at the rear of the rear axle support.
Position the support (2) in the bore at the front of the rear axle support.
Support rear axle support using workshop jack and special tool 31 5 250.

IMPORTANT:
The centre of gravity of the rear axle must be positioned centrally over the workshop jack.
Tie down rear axle support 33 5 206 to the special tool using a tensioning strap31 5 250.







Release screws (1).
Remove nuts (2) and screws.
Tightening torque 33 33 1AZ.
Slowly lower rear axle support.

Installation note:
Check threads for damage; if necessary, repair with Helicoil thread inserts.
Check seating of coil springs with spring pads, correct if necessary.







Installation note:
Check threaded bolts for damage and replace if necessary.
Tightening torque 33 33 2AZ.







After installation:
- Carry out wheel alignment procedure.