Audi Workshop Service and Repair Manuals

Renewing sealing flange (pulley end) with crankshaft oil seal Special tools and workshop equipment required

t  Pin wrench -3212-

t  Assembly tool -T40048- t  Electric drill with plastic brush attachment t  Safety goggles t  Sealant → Electronic parts catalogue

Procedure –  Remove vibration damper → Chapter. –  Unbolt belt pulley from coolant pump. –  Use pin wrench -3212- to counterhold pulley when loosening bolts.

–  Remove bolts -arrows-. –  Remove sealing flange (pulley end).   Note Renew sealing flange (pulley end).

Caution Make sure that no sealant residue gets into the engine.   WARNING Wear safety goggles. –  Remove sealant residue from cylinder block and sump (top section) with rotating plastic brush or similar. –  Clean sealing surfaces; they must be free of oil and grease.

–  Cut off nozzle of tube at front marking (Ø of nozzle approx. 1.5 mm).

–  Apply bead of sealant onto clean sealing surface of sealing flange as illustrated. l  The groove -arrow- on the sealing surface must be completely filled with sealant. l  The bead of sealant must project 1.5 … 2.0 mm above the sealing surface.   Note t  The sealant bead must not be thicker than specified, otherwise excess sealant could enter the sump and clog the strainer in the oil pump. t  The sealing flange (pulley end) must be installed within 5 minutes after applying silicone sealant.

–  Fit assembly aid -T40048/1- onto assembly sleeve -T40048/2- and slide sealing flange -1- onto assembly sleeve. –  Take off assembly aid.

–  First position sealing flange -1- (with assembly sleeve -T40048/2- inserted) on crankshaft.

–  Tighten bolts -arrows- in stages and in diagonal sequence. Perform further installation in reverse order, paying attention to the following: –  Install vibration damper → Chapter. –  Install poly V-belt → Chapter. –  Install lock carrier with attachments → Rep. Gr.50. –  Install bumper cover (front) → Rep. Gr.63. Tightening torques

Component	Nm
Sealing flange (pulley end) to cylinder block	9 1)
Poly V-belt pulley to coolant pump	20
l  1) Tighten in stages and in diagonal sequence