Press out the flange (1, Fig. 10.22) using large screwdrivers (2) and, using a screwdriver, remove the dust cover (16, Fig. 10.1, b). Punch the seal and, using the "23.0.490" tool, knock out the seal.


Press in a new oil seal using tool "27.1.420".
Upon completion of the work, check the oil level in the transfer case and, if necessary, restore it. Check the tightness of the unit.
(This publication was borrowed from an online resource BMWMan)
