Audi Workshop Service and Repair Manuals

Renewing crankshaft oil seal (pulley end)

Special tools and workshop equipment required

t	Oil seal extractor -3203-

t	Counterhold tool -3415-

t	Assembly tool -T10053-

Removing –  Remove toothed belt → Chapter. –  Remove crankshaft sprocket; use counterhold -3415- to lock sprocket in place.

–  Before fitting oil seal extractor, fully screw in centre bolt for sprocket into crankshaft. –  Unscrew inner part of oil seal extractor -3203- 9 turns (approx. 20 mm) from outer part of extractor and lock in position with knurled screw.

–  Lubricate threaded head of oil seal extractor -3203-, place it in position and, while exerting firm pressure, screw it into oil seal as far as possible. –  Loosen knurled screw and turn inner part against crankshaft until the oil seal is pulled out. –  Clamp flats of oil seal extractor in vice and use pliers to remove seal.

Installing –  Clean running surface and sealing surface. –  Remove oil residue from crankshaft journal with a clean cloth. –  Place guide sleeve -T10053/1- onto crankshaft journal. –  Slide oil seal over guide sleeve onto crankshaft journal.

–  Press oil seal on as far as the stop using press sleeve -T10053- and bolt -T10053/2-.

–  Renew centre bolt for toothed belt sprocket. –  Install crankshaft sprocket; use counterhold -3415- to lock sprocket in place.   Note t  Contact surface between toothed belt sprocket and crankshaft must be free of oil. t  Do not lubricate bolt for crankshaft sprocket. Remaining installation steps are carried out in reverse sequence; note the following: –  Install toothed belt (adjust valve timing) → Anchor. –  Install pulley → Chapter. –  Install poly V-belt → Chapter. Tightening torque

Component	Nm
Toothed belt sprocket to crankshaft	90 + 90° → Note → Note

1)  Renew bolt. 2)  90° equals a 1/4 turn.