Special tools required:
IMPORTANT: Use only approved gear oils.
Failure to comply with this instruction will result in serious damage to the rear differential!
Necessary preliminary tasks:
Remove retaining clip (1) and insert nut (2) with diaphragm seal.
Fig. 36: Identifying Retaining Clip And Nut
Mark position of flange nut (1) to bevel pinion (2).
Fig. 37: Identifying Flange Nut And Bevel Pinion
Release flange nut with special tools 33 5 050 and 33 5 070; to do so, grip bevel pinion with special tools 33 5 060 and 33 5 070.
Fig. 38: Identifying Special Tools (33 5 050),(33 5 070) And (33 5 0 60)
Withdraw shaft seal with special tool 00 5 010.
Fig. 39: Identifying Shaft Seal With Special Tool (00 5 010)
Coat sealing lips of new shaft seal and sealing face of bevel pinion with differential oil.
Drive in shaft seal with special tool 33 5 080.
Fig. 40: Identifying Special Tool (33 5 080)
Clean bevel pinion thoroughly to remove remnants of screw - locking agent.
Fig. 41: Identifying Bevel Pinion
Check dust cover for damage, replace if necessary.
IMPORTANT: Clean flange nut thoroughly to remove remnants of grease and screw-locking agent.
Pack collar insert (1) of flange nut with grease.
Apply a thin coating of grease to shaded area (2) of flange nut.
Coat at least four thread turns of flange nut with "DREI BOND adhesive type 1385".
Fig. 42: Identifying Collar Insert And Shaded Area Of Flange Nut
IMPORTANT: In order to avoid damaging the rear differential, do not under any circumstances tighten down the flange nut (1) beyond the marker point of the bevel pinion (2).
Fig. 43: Identifying Flange Nut And Bevel Pinion
Place insert nut (2) with diaphragm seal in flange nut.
Install retaining clip (1).
Fig. 44: Identifying Retaining Clip And Nut
After installation:
REPLACING REAR COVER GASKET ON REAR DIFFERENTIAL
IMPORTANT: In event of oil loss, always check rear differential for traces of wear and damage.
Necessary preliminary tasks:
NOTE: Read and comply with document "Rear differential: Assignment to model series".
Select rear differential:
After installation: