Rear Subframe Mount: Service and Repair

33 33 111 Replacing all rubber mounts for rear axle carrier

Special tools required:
^ 33 4 140
^ 33 4 155
^ 33 4 156
^ 33 5 171
^ 33 5 172
^ 33 5 173

Warning!
Danger to life!
Mount securing fixture for vehicle on lifting platform to prevent the vehicle from slipping off or tilting down.

Necessary preliminary tasks:
^ Lower rear axle carrier

Warning!
Danger of explosion!
Do not point air jet from hot air blower at fuel tank!





Withdraw rubber mount using special tools 33 4 140, 33 4 155, 33 4 156 and 33 5 171 from rear axle carrier sleeve.

Note:
Make sure special tool 33 5 171 is correctly positioned in relation to rubber mount.
Make sure special tool 33 4 140 is correctly supported on rear axle carrier sleeve.
Using a hot air blower, heat bearing bushing at max. 600° C outlet temperature for approx. 2 minutes.

Applicable to front rubber mount:

Important!
Notch (1) must point to right and round rubber mount opening (2) must point downwards.





Coat rubber mount (3) with Circolight Rubber Process Oil.





Applicable to rear rubber mount:

Important!
Notch (1) must point to left and round rubber mount opening (2) must point downwards.

Coat rubber mount (3) with Circolight Rubber Process Oil.





Draw in rubber mount (1) with special tools 33 5 173, 33 5 172, 33 4 155 and 33 4 156 as far as it will go into rear axle carrier sleeve.

After installation:
^ Activate and fill air suspension system
^ Bleed braking system