Audi Workshop Service and Repair Manuals

Renewing oil seal for flange for propshaft (rear final drive removed) l  Original flange for propshaft must be re-installed. l  If flange for propshaft also has to be renewed, please use the following description: → Chapter „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) Removing l  The oil seal for the propshaft flange can be only be renewed with the rear final drive removed. Refer to 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 This value must be reproduced on assembly if you find that the flange for the propshaft has to be renewed as part of the repair → Chapter „Renewing oil seal and flange for propshaft (rear final drive removed)“.

–  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 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-. –  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) -C-Handle

–  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.

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

–  Using inductive heater -VAS 6414-, heat flange for propshaft to approx. 80 °C. –  Align mark on flange for propshaft -arrow A- with mark on pinion shaft -arrow B-.

–  Drive flange for propshaft onto pinion shaft. –  Install originally fitted pinion shaft nut with locking fluid -AMV 185 101 A1-.

–  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

–  Tighten pinion shaft nut 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. –  Install rear final drive → Chapter. –  Check oil level in rear final drive → Chapter.