side.
Make matching marks on differential
input shaft, collar nut and driveshaft
flange.
-
Pry lock plate from nut.
Counterhold input flange with
BMW special tool 23 0 020 or
equivalent and remove collar nut.
-
If necessary, use puller to remove
input flange.
Note:
Be prepared to catch dripping oil in a
pan.
-
Pry old oil seal from its recess
using BMW special tool 00 5 010
or equivalent seal puller.
CAUTION!
Be careful not to mar the differential
housing when removing the seal.
-
Dip new seal in differential
lubricant and drive it into position.
-
Lightly lubricate input shaft and
press input flange back on. Install
collar nut and slowly tighten until
matching marks line up.
-
Install a new lock plate and refill
differential with lubricant.
CAUTION!
If the flange collar nut is tightened
past the marks, interior components
of the differential will be damaged.