Dismantling and assembling differential - all-wheel drive — AUDI

🧭 Before you start

Fits: platform codes SF, SG

• Special tools named: puller
• Renewed: damaged shim

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• To fit hooks, open arms (B) by unscrewing nut (arrow). Then attach hook with puller (A) installed.As soon as outer race has been raised slightly, loosen two arm puller and press hooks outwards.
• After pulling out, renew damaged shim.
• Observe installation position of washer. Shoulder on inner diameter faces seal.

📋 Procedure

1. Support gearbox housing with tube3345 directly below bearing support. [Note: To fit hooks, open arms (B) by unscrewing nut (arrow). Then attach hook with puller (A) installed.As soon as outer race has been raised slightly, loosen two arm puller and press hooks outwards.] [Note: Assembly ring10 - 9 has been discontinued. Use thrust piece T10266 instead .]
2. Clamp puller(A) near flat sides of differential under inner race. [Note: After pulling out, renew damaged shim.]
3. First insert washer and shim. [Note: Observe installation position of washer. Shoulder on inner diameter faces seal.]
4. Cover tapered roller bearing inner race to prevent possible damage and ingress of metal particles.
5. Drive out spring pin with chisel, inserting chisel into circumferential groove.

6. Align hole in differential pinion pin with hole in differential cage.
7. Drive in spring pin with drift (1) until dimension (a) = 5 ± 0.5 mm is attained.
8. Lubricate one-piece thrust washer with gear oil.
9. Install one-piece thrust washer in such a way that lug (A) engages in groove (B) in differential.
10. Install one-piece thrust washer moistened with gear oil .
11. Install both sun wheels and secure (e.g. with stub shaft).
12. Insert planet pinions offset 180° and pivot into position.
13. Press in differential pinion pin ((arrow A)) to first planet pinion.
14. Place threaded pieces (arrows B) in sun gears.
15. Drive differential pinion pin into final position and secure with spring pin .

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