Audi Workshop Service and Repair Manuals

Removing and installing sealing flange (front) Special tools and workshop equipment required

t  Fitting sleeve -3202/1-

t  Fitting sleeve -3265-

Removing –  Move lock carrier to service position → Chapter. –  Remove toothed belt → Chapter. –  Remove camshaft sprockets on cylinder head (right-side). –  Remove bolts -1- and take off bracket with idler roller. –  Remove bolts -2- and take off toothed belt cover (rear right). –  Remove top section of sump → Chapter.

–  Unscrew central bolt -1- for toothed belt sprocket -2- on crankshaft. –  Remove toothed belt sprocket and diamond-coated washer -3-.

–  Unbolt eccentric adjuster -3-, tensioning lever -2- with tensioning roller and tensioner -1-.

–  Unscrew plug from access hole -3-. –  Wrap insulating tape around tip and shaft of 3 mm Ø drill bit to avoid cuts. –  Press chain tensioner -1- in direction of -arrow- until the 3 mm Ø drill bit -2- can be inserted in the access holes in the sealing flange and the chain tensioner.

–  Remove bolts -1- and -2- and detach front sealing flange. –  Drive out oil seal with sealing flange removed.   Note The oil pump chain tensioner must be removed when renewing the sealing flange → Chapter. Installing Installation is carried out in the reverse order; note the following:   Note t  Renew gaskets, seals and self-locking bolts. t  Do not lubricate sealing lip and outer rim of oil seal before pressing in. –  Clean the sealing surfaces on the sealing flange. –  Install sealing flange (front) with chain tensioner locked in position.

–  Renew bolt -2-. –  Tighten bolts -1- to 10 Nm and bolt -2- to 30 Nm.

–  Push on oil seal using fitting sleeve -3202/1-. –  Press oil seal on as far as the stop using fitting sleeve -3265- and central bolt.

–  Install eccentric adjuster -3-, but do not tighten yet.   Note Note washer fitted under tensioning lever -2-. –  Install tensioning lever -2- with tensioning roller and tensioner -1-.

–  Install crankshaft toothed belt sprocket -2- with new diamond-coated washer -3- and new central bolt -1-.   Note t  The contact surfaces between toothed belt sprocket, diamond-coated washer and crankshaft must be free of oil. t  Do not additionally lubricate bolt for crankshaft toothed belt sprocket. –  Install sump (top section) → Chapter. –  After installing oil pump, pull drill bit out of access hole and screw in sealing plug with a new seal. –  Install toothed belt (adjust valve timing) → Anchor. –  Install lock carrier with attachments → Rep. Gr.50. –  Install bumper cover (front) → Rep. Gr.63. Tightening torques

Component		Nm
Front sealing flange to cylinder block	M6	10
	M8	30 1)
Tensioning lever to sealing flange (front)		45 1)
Tensioner to sealing flange (front)		10
Toothed belt sprocket to crankshaft		200 + 180° 1)2)
Sealing plug for access hole to sealing flange (front)		10
l  1) Renew bolts. l  2) 180° = one half turn.