Audi Workshop Service and Repair Manuals

Renewing oil seal for propshaft flange on rear final drive (rear final drive installed) Special tools and workshop equipment required

t  Engine and gearbox jack -V.A.G 1383 A- with universal gearbox support -V.A.G 1359/2-

t  Drive flange installing tool -VW 391-

t  Adapter -VW 771/40- from multi-purpose tool set -VW 771-

t  Counterhold tool -3028-

t  Extractor tool -T20143-

t  Thrust piece -T40109- t  Sealing grease -G 052 128 A1- t  2 x Hexagon bolts M 8 x 30 t  Bolts (1x) M 8 x 45 Removing l  Rear final drive installed Refer to general repair instructions → Chapter.

–  Remove rear section of exhaust system behind clamps -arrows- → Rep. Gr.26. –  Detach propshaft from rear final drive and tie up → Chapter.

–  Position engine/gearbox jack -V.A.G 1383 A- with universal gearbox support -V.A.G 1359/2- under rear final drive.

Audi A4, Cabriolet and A6 –  Remove securing bolts -arrows- for final drive support.

Audi A8 –  Unscrew bolts for final drive support -arrow A- and -arrows B-. Continued for all vehicles –  Carefully lower final drive until flange for propshaft is freely accessible.

–  Remove circlip -arrow-.   Caution Renew circlip with new circlip of same thickness if overstretched or damaged during removal. For correct version, refer to → Electronic parts catalogue

–  Mark position of flange -B- for propshaft relative to pinion shaft -A--arrow-.   Note t  This marking is necessary in order to maintain the original position of the coloured dot -C- on the outside of the flange. t  The coloured dot -C- marks the point of maximum radial run-out on the flange (corresponding to maximum distance from axis of rotation).

–  Screw two bolts M 8 x 30-arrows- into flange. –  Place drip tray underneath. –  Pull off flange for propshaft using drive flange installing tool -VW 391-.

–  Carefully press seal slightly inwards at top part of outer circumference -arrow-.

–  The seal is then positioned at an angle. Lever out seal.   Caution Take care not to damage the contact surface for the oil seal on the pinion shaft.

Installing Perform installation in reverse sequence of removal. Note the following: –  Lightly lubricate outer circumference of oil seal with gear oil. –  Pack space between sealing lip and dust lip half-full with sealing grease -G 052 128 A1-. –  Drive in new seal onto stop (take care to keep seal straight).

–  Position flange for propshaft -B- on pinion shaft -A- so that markings -arrow- are in line.

–  Screw adapter -VW 771/40- into threaded hole in pinion shaft. –  Attach counterhold tool -3028- to flange for propshaft with bolts (M 8 x 30) -arrows A-. –  Secure installing tool -VW 391- with bolt (M 8 x 45) -arrow B-. At the same time, screw spindle of installing tool into adapter -VW 771/40-. –  Pull in flange for propshaft as far as stop (counterhold spindle of installing tool with spanner).

–  Fit circlip -arrow-.

Audi A4, Cabriolet and A6 –  Tighten securing bolts -arrows- for final drive support. Tightening torque → Item.

Audi A8 –  Tighten bolts for final drive support -arrow A- and -arrows B-. Tightening torque → Item and → Item. Continued for all vehicles –  Install propshaft on rear final drive → Anchor. –  Check oil level in rear final drive → Chapter. –  Install rear section of exhaust system → Rep. Gr.26.