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-

Procedure –  Move lock carrier to service position → Chapter. –  Remove poly V-belt → Chapter. –  Remove toothed belt → Chapter.

–  Remove crankshaft sprocket; use counterhold tool -3415- to lock sprocket in place.

–  Before fitting oil seal extractor, fully screw in centre bolt for sprocket into crankshaft.

–  Unscrew inner section of oil seal extractor -3203- 8 turns out of outer section and lock with knurled screw. –  Lubricate threaded head of oil seal extractor, place it in position and, exerting firm pressure -arrow-, 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. –  Remove oil seal with pliers. –  Clean running surface and sealing surface.   Note t  Renew the bolts tightened with specified tightening angle. t  Do not lubricate sealing lip and outer rim of oil seal before pressing in.

–  Place guide sleeve -T10053/1- onto crankshaft journal. –  Slide oil seal over guide sleeve.

–  Press in oil seal until flush using the centre bolt and assembly tool -T10053-.

–  Renew centre bolt for toothed belt sprocket. l  Contact surface between toothed belt sprocket and crankshaft must be free of oil. l  Do not lubricate bolt for crankshaft sprocket. –  Install crankshaft sprocket; use counterhold tool -3415- to lock sprocket in place. Remaining installation steps are carried out in reverse sequence; note the following:   Note t  Hose connections and hoses for charge air system must be free of oil and grease before assembly. Do NOT use lubricant. t  Secure all hose connections with the correct type of hose clips (same as original equipment) → Electronic parts catalogue. t  To ensure that the charge air hoses can be properly secured at their connections, spray rust remover onto the worm thread of used hose clips before installing. –  Install toothed belt (adjust valve timing) → Anchor. –  Install vibration damper → Chapter. –  Install poly V-belt → Chapter. –  Install lock carrier with attachments → Rep. Gr.50.

–  Allow stop for torque reaction support to rest on rubber buffer for torque reaction support under its own weight and tighten nuts -arrows-. –  Install bumper cover (front) → Rep. Gr.63. Tightening torques

Component	Nm
Toothed belt sprocket to crankshaft	120 + 90° 1)2)
Stop for torque reaction support to lock carrier	28
Hose clips (9 mm wide)	3
Hose clips (13 mm wide)	5.5
l  1) Renew bolt. l  2) 90° = one quarter turn.