Audi Workshop Service and Repair Manuals

Renewing oil seal for propshaft flange on rear final drive (rear final drive installed)

Original flange for propshaft must be re-installed.

Special tools and workshop equipment required

t	Drive flange installing tool -VW 391-

t	Multi-purpose tool -VW 771-

t	Extractor tool -VW 771/37-

t	Thrust piece -T40112-

t	Counterhold tool -3028-

t	Drift sleeve -3143-

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  Torque wrench -V.A.G 1576- t  Sealing grease -G 052 128 A1- t  Locking fluid -AMV 185 101 A1- t  3 bolts (M10 x 25) Removing l  Rear final drive installed Refer to general repair instructions → Chapter. –  Detach propshaft from rear final drive → Chapter.

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

–  Remove securing bolts for final drive support -arrows-. –  Carefully lower final drive until flange for propshaft is freely accessible.

–  Mark position of pinion shaft nut relative to pinion shaft -arrow-.

Measuring dimension "a" and dimension "b" t  Distance from flange to pinion shaft = dimension -a- t  Distance from flange to pinion shaft nut = dimension -b- –  Note measurements.

–  Fit counterhold tool -3028- to flange for propshaft and screw off pinion shaft nut. –  Count the turns when screwing off the pinion shaft nut and make a note of the number. -A-3 bolts M 8 x 25 -B-Socket (32 mm)

–  Mark position of flange for propshaft -arrow A- in relation to pinion shaft -arrow B-.

–  Place drip tray underneath. –  Secure installing tool -VW 391- with 2 bolts M 8 x 25-arrows-. –  Pull off flange for propshaft.   Caution If you now ascertain that flange for propshaft needs to be renewed, proceed as follows: t  Re-install flange for propshaft as described below (but do not renew oil seal yet) t  Remove rear final drive → Chapter t  Renew flange for propshaft and oil seal after measuring friction torque → Chapter

–  Remove oil seal. –  Clean thread of 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).

–  Align mark on flange for propshaft -arrow A- with mark on pinion shaft -arrow B-.

–  Drive flange for propshaft onto pinion shaft.

–  Install the originally fitted pinion shaft nut (apply locking fluid -AMV 185 101 A1-) and tighten to the previously marked position -arrow- by turning the same number of turns as noted on removal.

Checking dimension “a” and dimension “b” l  The measurements must be the same as noted previously within a tolerance of ± 0.2 mm.

–  Tighten securing bolts -arrows- for final drive support. t  Tightening torque → Item –  Install propshaft on rear final drive → Anchor. –  Check oil level in rear final drive → Chapter. –  Install rear section of exhaust system → Rep. Gr.26.