Audi Workshop Service and Repair Manuals

Renewing oil seal for Hall sender - cylinder head (right-side) Special tools and workshop equipment required

t  Oil seal extractor -2085-

t  Assembly tool -T10071- t  Bolt M8x50 t  Bolt M8x60

Procedure   Note t  PTFE oil seals are matched to the direction of shaft rotation (see arrow on oil seal). Incorrect allocation to direction of rotation will result in oil leaks. t  The direction of rotation of the oil seals at the front of the engine is “clockwise”-arrow 1-. The direction of rotation of the oil seals on the back of the engine is “anti-clockwise”-arrow 2-.

–  Remove engine cover panel -arrows-.

–  Unscrew bolts -arrows-. –  Remove air ducts -1- and -2-.

Vehicles with secondary air system: –  Disconnect hose -arrow- from secondary air connecting pipe.

All models: –  Remove toothed belt cover (top). –  Unclip toothed belt cover (centre). –  Unplug electrical connector at Hall sender. –  Unscrew bolts -arrows-. –  Pull toothed belt cover forwards slightly and detach Hall sender. –  Remove rotor for Hall sender → Item and washer → Item.

–  Screw in bolt -2085/1- for oil seal extractor -2085-. –  Position inner section of oil seal extractor -2085- flush with outer section. –  Unscrew inner section of oil seal extractor 3 turns and lock with knurled screw.

–  Lubricate threaded head of oil seal extractor -2085-, place it in position and, exerting firm pressure, screw it into oil seal as far as possible. –  Loosen knurled screw and turn inner section against camshaft until oil seal is pulled out. –  Clamp flats of oil seal extractor in vice. –  Remove oil seal with pliers. –  Unscrew bolt -2085/1- for oil seal extractor -2085-.

–  Clean running surface and sealing surface. –  Fit guide sleeve -T10071/5- onto camshaft journal and secure with bolt M8x50. –  Check that oil seal is correctly matched to direction of rotation before installing. l  Direction of shaft rotation “clockwise” (arrow on oil seal). –  Push oil seal over guide sleeve onto shaft journal. –  Detach guide sleeve.

–  Press oil seal in onto stop with press sleeve -T10071/3- and bolt M8x60 -item 1-. –  Install Hall sender rotor ring → Item and washer → Item. –  Install Hall sender → Item. –  Fit toothed belt cover (top section). Tightening torques

Component	Nm
Hall sender rotor to camshaft	25
Hall sender housing to cylinder head	10
Rear toothed belt cover to cylinder head	10 1)
l  1) Install bolts using locking fluid; locking fluid → Parts catalogue.