Audi Workshop Service and Repair Manuals

Renewing oil seal and flange for propshaft (rear final drive removed)

Special tools and workshop equipment required

t	Drive flange installing tool -VW 391-

t	Multi-purpose tool -VW 771-

t	Puller hook -VW 771/37-

t	Thrust piece -T40112-

t	Counterhold tool -3028-

t	Drift sleeve -3143-

t  Adapter -T10235-

t  Friction gauge -VAS 6222- t  Inductive heater -VAS 6414- t  Sealing grease -G 052 128 A1- t  Locking fluid -AMV 185 101 A1- t  3 bolts M8 x 25 t  2 bolts (M10 x 40) –  Observe the general repair instructions → Chapter. –  Remove rear final drive → Chapter.

–  Secure rear final drive to engine and gearbox support -VW 540- with bolts (M10 × 40) -arrows-.

–  Measure friction torque before slackening pinion shaft nut. –  Make a note of the measurement.   Caution The friction torque must be set to this measured value after renewing the oil seal.

–  Fit counterhold tool -3028- to flange for propshaft with bolts -A-. –  Secure adapter -T10235- in tapped hole below flange for propshaft. –  Slacken pinion shaft nut, allowing counterhold tool -3028- to rest against adapter -T10235--arrow-. -A-3 bolts M 8 x 25 -B-Socket (32 mm) -C-Handle

–  Secure installing tool -VW 391- with 2 bolts M 8 x 25-arrows-. –  Pull off flange for propshaft.

–  Pull out the oil seal. –  Clean thread of pinion shaft.

–  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 oil seal onto stop (take care to keep oil seal straight).

–  Using inductive heater -VAS 6414-, heat flange for propshaft to approx. 80 °C. –  Drive new flange for propshaft onto pinion shaft. –  Apply locking fluid -AMV 185 101 A1- to thread of new nut.

–  Fit counterhold tool -3028- to flange for propshaft with bolts -A-. –  Counterhold tool -3028- must rest against lug -arrow- on housing when tightening pinion shaft nut. -A-3 bolts M 8 x 25 -B-Socket (32 mm) -C-Handle   Caution Only increase tightening torque slowly. Stop and and check friction torque several times. Friction torque measured prior to removal must not be exceeded otherwise rear final drive will have to be renewed!

–  Tighten new pinion shaft nut until torque friction measured before removal is attained. –  Install rear final drive → Chapter. –  Check oil level in rear final drive → Chapter.