Removing and installing Haldex coupling, Audi A1 — AUDI

🧭 Before you start

Fits: Audi A1 (8X, 2010–2018)

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• Loosen bolts (arrows) securing centre propshaft bearing, but do not remove them.
• Check whether there is a factory marking (paint dot) on the flexible coupling and on the flange for the propshaft on the rear final drive (arrows).
• If there is no marking, mark position of flexible coupling relative to flange for propshaft on rear final drive.
• When loosening propshaft bolts, counterhold at rear final drive using counterhold tool T10172 and adapters T10172/5.

📋 Procedure

1. Remove tunnel cross-piece General body repairs, exterior66Underbody trim; Exploded view - underbody trim.
2. Remove fuel tank Fuel supply system, petrol engines20Fuel tank.
3. ⚠ Risk of damage to flexible joint.The flexible joint must not be bent further than 10°.Do not subject flexible joint to tensile load.Take care not to damage wire mesh on flexible joint. — Disconnect exhaust system at clamp (arrows) and tie up front exhaust pipe.
4. Remove rear section of exhaust system 26Exhaust pipes/silencers; Exploded view - silencers.
5. Loosen bolts (arrows) securing centre propshaft bearing, but do not remove them.

6. If necessary, detach heat shield (2) from body so that centre bearing of propshaft on body can be moved.
7. Check whether there is a factory marking (paint dot) on the flexible coupling and on the flange for the propshaft on the rear final drive (arrows).
8. If there is no marking, mark position of flexible coupling relative to flange for propshaft on rear final drive.
9. When loosening propshaft bolts, counterhold at rear final drive using counterhold tool T10172 and adapters T10172/5.
10. Detach bolts (arrows) securing propshaft to rear final drive.
11. Pull propshaft off centring pin on rear final drive, pressing propshaft slightly towards front. To do so, unscrew bolts on centre bearing of propshaft if necessary.
12. ⚠ The seal (arrow) in the propshaft flange can be damaged.Pull off propshaft horizontally from centring pin. — Then tie up rear section of propshaft (A) to one side on body e.g. using wire (B).
13. Unplug electrical connector (1) on all-wheel drive control unit J492.
14. Place used oil collection and extraction unitV.A.G 1782 below rear final drive.
15. Remove drain plug (1) and drain high performance oil for Haldex coupling completely.
16. Screw in drain plug (1) with new seal.
17. Unscrew securing bolts (arrows) and remove Haldex coupling from rear final drive.
18. Remove old O-ring (arrow) from Haldex coupling.
19. Insert new O-ring (arrow) and lubricate lightly with high-performance oil for Haldex coupling.
20. Insert Haldex coupling (1) into rear final drive. Screw in guide pins T10093 for exact fitting.
21. Insert Haldex coupling as far as stop (turn propshaft flange (2)).
22. Tighten bolts (arrows) to specified torque .
23. Plug in electrical connector (1) on all-wheel drive control unit J492.
24. Attach propshaft to rear final drive .
25. Align centre bearing within elongated holes so that neither propshaft nor centre bearing are under stress.
26. Tighten bolts with washers (1) for centre bearing.
27. Install rear section of exhaust system and perform stress-free alignment 26Exhaust pipes/silencers; Exploded view - silencers.
28. Install fuel tank Fuel supply system, petrol engines20Fuel tank.
29. Install tunnel cross-piece General body repairs, exterior66Underbody trim; Exploded view - underbody trim.
30. Fill up with high-performance oil for Haldex coupling and check oil level in Haldex coupling .

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