Automatic gearbox 01V, front-wheel drive and four-wheel drive — Renewing oil seal for propshaft flange — AUDI

🧭 Before you start

Fits: Audi A6 C5 (4B)

• Renewed: o-ring behind flange, gasket

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• Check whether there is a factory marking (coloured dot) on the propshaft. If no factory marking is visible, mark the position of the propshaft flange (arrow A) relative to the rear final drive (arrow B).
• The following illustrations show procedure with final drive removed.
• Bolt on counterhold tool3028.
• Always renew O-ring behind flange.
• Lubricate O-ring with gear oil before installing.

📋 Procedure

1. Remove rear section of exhaust system behind clamp(s) (repair group 26).
2. Check whether there is a factory marking (coloured dot) on the propshaft. If no factory marking is visible, mark the position of the propshaft flange (arrow A) relative to the rear final drive (arrow B).
3. Unbolt the propshaft from the rear final drive and tie it up to the exhaust system brackets.
4. Place engine and gearbox jack V.A.G 1383 A with universal support V.A.G 1359/2 below final drive and take up weight of final drive.
5. Remove securing bolts (arrows) of final drive support (left-side).

6. Carefully lower final drive until flange is freely accessible.
7. Note measurements.
8. Mark position of securing nut relative to pinion shaft with paint (arrow). [Note: The following illustrations show procedure with final drive removed.]
9. Bolt on counterhold tool 3028.
10. Unscrew securing nut for pinion shaft completely. Count the number of turns required and make a note of this number.
11. Screw two hexagon bolts M8x30 (A) into flange.
12. Place used oil collection and extraction unit V.A.G 1782 underneath.
13. Pull off flange with drive flange installing toolVW 391.
14. Pull out oil seal.
15. Always renew O-ring behind flange.
16. Lubricate O-ring with gear oil before installing.
17. Lubricate outer circumference and sealing lips of oil seal with gear oil.
18. Pack space between sealing lip and dust lip half-full with sealing greaseG 052 128 A1.
19. Drive in new oil seal onto stop (take care to keep oil seal straight).
20. Drive on propshaft flange until securing nut can be fitted onto pinion shaft.
21. The threads on the pinion shaft and securing nut must be cleaned so they are free of grease residue, and then coated thinly with locking fluidD 000 600.
22. Install the originally fitted hexagon nut and tighten to the previously marked position (arrow) by turning the same number of turns as noted on removal.
23. Secure hexagon nut. [Note: It is important to clean the threads in the flange shafts on the gearbox and rear final drive to remove any remaining locking fluid after removing the propshaft. Otherwise there is a danger that the new bolts will seize when they are screwed in and then shear off the next time they are removed. The threads can be cleaned with a thread tap. After detaching the propshaft from the rear final drive, the additional balancing washer (thicker washer) that may be fitted between the lock plate and one of the bolt heads must not be reinstalled. Renew propshaft bolts (self-locking).]
24. If there is a factory marking on the propshaft, measure the radial run-out at the propshaft flange and align the paint marking on the propshaft with the new marking on the flange.
25. If the factory marking (coloured dot) on the propshaft was no longer visible and the position of the propshaft relative to the propshaft flange was therefore marked prior to removal, refit the propshaft in the same position (see the separate procedure).
26. Renew gasket on propshaft flange and secure propshaft (see the separate procedure).
27. Fill up gear oil in rear final drive and check oil level (see the separate procedure).
28. Align exhaust system so it is free of stress (repair group 26).

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