Audi Workshop Service and Repair Manuals

Renewing exhaust camshaft oil seal

Special tools and workshop equipment required

t	Oil seal extractor -2085-

t	Counterhold tool -3036-

t	Assembly tool -T10071-

t	Tensioning bolt -T10092- for vehicles up to 07.2000

t	Locking pin -T40011- for vehicles up to 07.2000

Procedure –  Release quick-release fasteners and remove engine cover panel -arrows-. –  Move lock carrier to service position → Rep. Gr.50.

Vehicles up to 07.2000: –  Remove toothed belt cover (top section)   Caution The engine must only be turned at the crankshaft, in the direction of normal engine rotation (clockwise). –  Rotate crankshaft to “TDC” by turning bolt for toothed belt sprocket. l  Marking on camshaft sprocket and marking on crankshaft must be aligned to “TDC”-arrows-.

–  Screw tensioning bolt -T10092- into toothed belt tensioner. –  Compress piston of tensioner just far enough so that the piston can be locked with locking pin -T40011-.   Note Take care not to compress tensioner too far. –  Remove toothed belt from camshaft sprocket. Vehicles from 08.2000: –  Take toothed belt off camshaft sprocket → Chapter.

All models: –  Loosen camshaft sprocket bolt using counterhold tool -3036-. –  Pull off camshaft sprocket.

–  To guide oil seal extractor, screw camshaft sprocket bolt -arrow- into camshaft as far as it will go by hand. –  Unscrew inner part of oil seal extractor -2085- 2 turns (approx. 3 mm) from outer part and lock in position with knurled screw.

–  Lubricate threaded head of oil seal extractor -2085-, place it in position and screw it into oil seal as far as possible (applying firm pressure). –  Loosen knurled screw and turn inner section against camshaft until oil seal is pulled out. –  Clamp flats of oil seal extractor in vice and use pliers to remove seal.

–  Fit guide sleeve -T10071/1- onto camshaft journal.   Note Do not lubricate sealing lip of oil seal. –  Push oil seal over guide sleeve onto shaft journal. –  Take off guide sleeve.

–  Press oil seal in onto stop using press sleeve -T10071/3- and bolt -T10071/4-.

–  Install camshaft sprocket. l  Installation position: The thinner web of the camshaft sprocket faces outwards -arrows- and the marking for “TDC” is visible.

Caution If a piston is at “TDC” the valves could strike the piston when turning the camshaft. Pistons must therefore not be at “TDC” This could otherwise result in damage to valves and pistons. –  Tighten camshaft sprocket bolt using counterhold tool -3036-. –  Install toothed belt (adjusting valve timing): vehicles up to 07.2000 → Anchor; vehicles from 08.2000 onwards → Anchor.

–  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-. Tightening torques

Component	Nm
Camshaft sprocket to camshaft	65
Stop for torque reaction support to sump	28