Audi Workshop Service and Repair Manuals

Rear final drive 0BE - renewing oil seal for propshaft flange Special tools and workshop equipment required

t  Thrust piece -VW 431-

t  Puller -T10055- t  -2-Adapter -T10055/2-

t  Thrust piece -T10380- t  Assembly sleeve -T40247/1- t  Assembly tool -T40247- t  Drip tray t  Sealing grease -G 052 128 A1-

t  -1-Two-arm puller -Kukko 20/10-

t  Inductive heater -VAS 6414- t  or t  Hotplate (commercially available) t  and t  Temperature gauge -VAS 6519-

Removing l  Rear final drive installed –  Disconnect exhaust system at clamps -1- and -2-. –  Remove rear section of exhaust system → Rep. gr.26.   Note A second mechanic is required for removing the rear section of the exhaust system.

–  Unscrew gear oil drain plug -arrow- and drain off approx. 300 ml of gear oil. –  Screw in and tighten new drain plug -arrow-. Tightening torque → Item

–  Detach propshaft from rear final drive → Chapter. –  Guide propshaft downwards between fuel tank and rear subframe and tie up on one side.

–  Remove high-temperature grease in propshaft flange on rear final drive. –  Remove circlip -arrow-.

–  Mark position of flange -B- for propshaft relative to pinion shaft -A--arrow-.   Note t  This marking -arrow- is necessary in order to maintain the original position of the coloured dot -C- on the outside of the flange. t  This is the only effective way to minimise the imbalance in the rear final drive.

–  Pull off propshaft flange. A -  E.g. two-arm puller -Kukko 20-10-

–  Lay absorbent cloth -A- on subframe under final drive.

–  Pierce metal ring of oil seal -A- in direction of -arrow - using e.g. a scriber -B-.

–  Then screw self-tapping screw -arrow- into this hole in oil seal -A-.

–  Pull out oil seal -A- for propshaft flange in direction of -arrow-. B -  Self-tapping screw

Installing Perform installation in reverse sequence of removal. Note the following: –  Pack space between sealing lip and dust lip half-full with sealing grease -G 052 128 A1-. –  Lightly lubricate outer circumference of oil seal with gear oil. –  Fit new oil seal -A- on assembly sleeve -T40247/1-.   Note Check that spring of oil seal behind sealing lip is in installation position. –  Fit assembly sleeve -T40247/1- onto pinion shaft -B- together with oil seal -A-.

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

–  Heat propshaft flange -B- to 115 °C using inductive heater -VAS 6414- or a hotplate.   WARNING t  Wear protective gloves. t  If using a hotplate, the temperature value must be monitored constantly with temperature gauge -VAS 6519-. –  Position propshaft flange -B- on pinion shaft -A- so that markings -arrow- are in line.

–  Drive on propshaft flange as far as stop using thrust piece -T10380-.

Install circlip -1- as follows: l  Always renew circlip -1-. l  Chamfer on inner diameter of circlip -arrow A- must face outwards towards propshaft. l  The wider lug on the circlip -arrow B- must be on the right side, as shown in the illustration. –  Measure thickness of old circlip -1-. –  Replace circlip -1- with a new circlip of the same thickness → Electronic parts catalogue. –  Fit new circlip -1-.   Note t  If the propshaft flange is being renewed, the thickness of the circlip -arrow- must be re-determined. t  To do so, determine the thickest circlip -arrow- that will just fit in the groove and install it. For part number refer to → Electronic parts catalogue. –  Fill up gear oil in rear final drive 0BE → Chapter. –  Attach propshaft to rear final drive → Anchor. –  Install rear section of exhaust system → Rep. gr.26.