Rear Axle

33 10 010 - Removing and installing/replacing rear differential





Special tools required:
- 31 5 220
- 33 5 120
- 33 5 122
- 33 5 125
- 33 5 200
- 33 5 206





Warning!
Risk of injury!

Rear differential must be lashed with tightening strap 33 5 206 to prevent it falling out when the output shafts are forced off.





Important!
When removing and reinstalling the rear differential, it is essential to replace both output shaft seals !

Check transmission oil level [1][2]Checking/Topping Up Oil Level in Rear Differential after completing tasks.





Necessary preliminary tasks:
- Remove propeller shaft on rear axle differential 26 11 000 Removing and Installing Complete Propeller Shaft (Flexible Disc at Rear).





Position special tool 33 5 200 on workshop jack.

Support rear differential with special tool 33 5 200 .

Lash rear differential with tightening strap 33 5 206 to special tool 33 5 200 .

Important!
Tightening strap 33 5 206 must be pass through between output shafts and rear differential cover!





Important!
Special tools 33 5 120 and 33 5 125 must be inserted in all-round slot (1) on output shaft!





Press only left output shaft by jerks and jolts with special tool 33 5 120 out of rear differential. Here, thrust piece of bolt 33 5 122 must rest on rear differential.





Important!
In order to ensure correct locking of the output shaft in the rear differential, make sure when driving in the output shaft that the tightening strap 33 5 206 is not located between the rear differential and the dust plate!

Installation Note:
Drive output shaft with special tool 33 5 125 and a rubber mallet into rear differential.





Release screws (1).

Installation Note:
Adhere to the installation sequence at the end of the document in order to prevent distortion of the rear differential during installation and thereby avoid potential complaints about noise.





Release nut and remove bolt (1).

Installation Note:
Adhere to the installation sequence at the end of the document in order to prevent distortion of the rear differential during installation and thereby avoid potential complaints about noise.





Lower rear differential with special tool 33 5 200 .

Important!
Risk of damage!

Output shafts must not under any circumstances rest on swinging arms.





Release bolt (1) on left spring strut.

Remove spring strut from wheel carrier.

Tightening torque 33 52 3AZ 33 52 Shock Absorbers (Rear).





Important!
Risk of damage!

Output shafts must not under any circumstances rest on swinging arms.

Secure special tool 31 5 220 with wheel studs to left drive flange.

Press wheel carrier min. approx. 12 cm upwards.





Press (tilt) rear differential on right upwards.

Feed out left output shaft in downward direction and tie up.

Swing rear differential towards left side.

Feed right output shaft out of rear differential and tie up.





Press right output shaft by jerks and jolts with special tool 33 5 120 out of rear differential. Here, thrust piece of bolt 33 5 122 must rest on rear differential.

Feed out output shaft and tie up.

Remove rear axle differential.





Important!
High installation forces indicate that the output shaft spline teeth are damaged or deformed!

Check spline teeth, replaced damaged parts if necessary.

Check dust plate (1) for damage, replace if necessary.

Replace retaining ring (2).

Coat highlighted contact surface (3) of output shaft with approved rear differential oil.





Installation Note:
Insert output shaft into rear differential.

Pull out assembly protection ring at lug (1) until one of the two programmed rupture points gives.





Installation sequence:

1. Install rear differential with workshop lifter and special tool 33 5 200 in rear axle carrier
2. Insert bolts (1) (do not tighten down)
3. Insert bolt from rear and replace nut (2) (do not tighten down)
4. Release tightening strap, lower special tool 33 5 200 and move away
5. Tighten down screws (1)
Tightening torque 33 17 1AZ [1][2]Differential Mount.
6. Tighten nut (2)
Tightening torque 33 17 2AZ [1][2]Differential Mount.





After installation:

- Check rear differential oil level [1][2]Checking/Topping Up Oil Level in Rear Differential, correct if necessary.