Removing and installing left flange shaft oil seal — AUDI

🧭 Before you start

Fit the support device, loosen hub and wheel bolts on the ground, then lift and remove the wheel. Note the torsion bar thread length and release tension. Disconnect the swivel joint, damper and coupling rod, unbolt the drive shaft and pendulum support and remove the shaft. Pull the flange shaft, renew its circlip, extract the seal, grease and drive in the new one. Refit the flange shaft and drive shaft, check the final drive oil and refit wheel and insulation.

Fits: platform code 70A

• Renewed: bolts, flange shaft circlip

Don't miss

• Measure and note torsion bar thread length (a) before releasing tension.
• Always renew the bolts at the swivel joint and the flange shaft circlip.
• Half-fill the space between sealing lip and dust lip with grease before fitting.
• Drive the oil seal in onto its stop with VW 195.
• Check final drive oil level with the gearbox installed.

Written for this job from the workshop steps below · TorqFix editorial.

📋 Procedure

1. Insert support device3250 before lifting vehicle Running gear40Repairing front suspension.
2. With vehicle standing on the ground, loosen drive shaft/wheel hub bolt on left (arrow) as well as wheel bolts on left wheel.
3. Raise vehicle until weight is taken off front axle.
4. Remove left wheel.
5. Unscrew left hexagon bolt for drive shaft/wheel hub.

6. Measure length of thread from nut to face of torsion bar stud (a) and note value.
7. Release tension from torsion bar using socket 27 mm3257Running gear, axles, steering after January 199640I - Removing and installing subframe, anti-roll bar, torsion bar, suspension link and dampers; Removing, installing and adjusting torsion bar.
8. Remove noise insulation tray.
9. Separate threaded connection between wheel bearing housing and lower swivel joint.
10. Always renew bolts.
11. Remove bolt for damper and anti-roll bar coupling rod on left.
12. Unbolt drive shaft from flange shaft.
13. Pull connector (1) off multi-function switch (2).
14. Remove bolt (arrow).
15. Unscrew pendulum support (1) from gearbox.
16. Press drive shaft out of wheel bearing housing.
17. Compress dampers.
18. Remove drive shaft by pressing engine/gearbox forwards somewhat.
19. Remove flange shaft with VW 771 and VW 421.
20. Always renew flange shaft circlip.
21. Clamp flange shaft in vice with protective jaw covers.
22. Use new circlip (A) to press old circlip out of groove in flange shaft.
23. Pull out flange shaft oil seal using VW 771 and VW 771/37.
24. Half-fill space between sealing lip and dust lip with greaseG 052 128 A1.
25. Drive oil seal in onto stop with VW 195.
26. Install flange shaft.
27. Install drive shaft.
28. With gearbox installed, check axle oil in final drive .
29. Fit wheel.
30. Install noise insulation tray.

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