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-.

–  Remove cover -1- at right of engine compartment.

–  Remove bolts -arrows-. –  Disengage activated charcoal filter solenoid valve 1 -N80--item 1- at air duct. –  Remove air duct -2-.

–  Remove cover panel for cylinder head cover (right-side) -arrows-.

–  Disconnect hose -arrow- from secondary air connecting pipe. –  Remove toothed belt cover (top). –  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 screw it into oil seal as far as possible (apply 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. Remove oil seal with pliers. –  Unscrew bolt -2085/1- for oil seal extractor -2085-. –  Clean contact surface and sealing surface.

–  Fit guide sleeve -T10071/5- onto camshaft journal and locate 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. –  Detach guide sleeve.

–  Press oil seal in onto stop with press sleeve -T10071/3- and bolt M8x60 -item 1-. Remaining installation steps are carried out in reverse sequence; note the following: –  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