Audi Workshop Service and Repair Manuals > A4 Mk3 > Power transmission | Automatic gearbox 0B6, four-wheel drive | Final drive, differential, differential lock | Exploded view - front final drive | Renewing O-ring on cover for front final drive

Renewing O-ring on cover for front final drive

Note

t	Rules for cleanliness when working on the automatic gearbox → Chapter.

t	General repair instructions → Chapter.

Special tools and workshop equipment required

t	Used oil collection and extraction unit -V.A.G 1782-

Procedure

–	Place used oil collection and extraction unit -V.A.G 1782- below gearbox.

–	Remove flange shaft (right-side) → Chapter.

–	Unscrew bolts on cover for front final drive in the reverse sequence to the tightening sequence shown and remove cover together with outer race for tapered roller bearing and shim.

Note

The thickness of the shim has been measured to fit; the shim must not be replaced with another shim of different thickness.

–	Renew O-ring -arrow-.

–	Install differential in gearbox housing.

Note the following if the outer race for tapered roller bearing and the shim have dropped out of the front final drive cover:

–	Lubricate shim and outer race for tapered roller bearing with gear oil and insert in front final drive cover as far as the stop.

–	Tighten bolts for front final drive cover → Fig..

–	Install flange shaft (right-side) → Chapter.

–	Fill up gear oil in gearbox after repairs → Chapter.

Audi Workshop Service and Repair Manuals