Renewing oil seal and grooved ball bearing for flange shaft (left-side) — AUDI

📋 Procedure

1. Loosen drive shaft/wheel hub bolt with vehicle standing on its wheels.
2. Remove wheel.
3. Unbolt drive shaft (left-side) from gearbox flange 40.
4. Place used oil collection and extraction unitV.A.G 1782 below gearbox.
5. Unscrew oil filler plug (arrow) and extract at least 0.5 ltr. of gear oil from final drive. [Note: It is essential to extract oil from the final drive as there is otherwise a danger of mixing gear oil with ATF.]

6. Remove heat shield for drive shaft (left-side).
7. Unplug electrical connector ((arrow A)) from speedometer sender G22 on gearbox. [Note: (Arrow B) can be disregarded.]
8. Push down the retaining clip holding the sender, turn it, and pull out the sender.
9. Unbolt retainer for electrical connector from bearing bracket for flange shaft.
10. Unbolt flange shaft bearing bracket (arrows).
11. Pull out flange shaft. [Note: When the gearbox is in the vehicle it is possible to pull out the flange shaft (left-side) between the body and the subframe by rotating the bearing bracket for the flange shaft approx. 60° to the right away from the installation position.]
12. Remove circlip (arrow A) for grooved ball bearing.
13. Press flange shaft out of flange shaft bearing bracket.
14. Pull out flange shaft oil seal using oil seal extractor leverVW 681.
15. Press grooved ball bearing out of bearing bracket.
16. Press new grooved ball bearing into bearing bracket.
17. Lightly lubricate outer circumference and sealing lip of oil seal with gear oil.
18. Drive in new oil seal until thrust piece contacts stop, ensuring that seal remains straight.
19. Fit drive wheel for speedometer sender G22 onto flange shaft (arrow). [Note: If necessary, apply grease to the contact surface in order to hold the drive wheel in position.]
20. Press bearing bracket with grooved ball bearing onto flange shaft.
21. Insert circlip (arrow A).
22. Renew O-ring (arrow B) in bearing bracket for flange shaft.
23. Check that there are no sharp edges on gearbox end of flange shaft (arrow); deburr edges if necessary.
24. Insert flange shaft (left-side) into the gearbox. [Note: While pushing in the flange shaft (left-side), it must be guided carefully by hand to avoid damaging the twin-lip oil seal in the gearbox.]
25. Bolt drive shaft to flange shaft (left-side) 40.
26. Install heat shield for drive shaft (left-side).
27. Fill up gear oil in front final drive .

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