Removing and installing alternator - vehicles with 2.7 ltr. and 3.0 ltr. TDI engine with dual clutch gearbox — AUDI

🧭 Before you start

Fits: Audi A5 (8T, 2007–2016)

Don't miss

• Stiff alternator mount bushes must be freed; otherwise the clamping force of the bush will not be adequate even when the bolts are tightened to the correct torque.

📋 Procedure

1. With ignition switched off, disconnect earth cable at battery .
2. Detach engine cover panel (arrows).
3. Unplug electrical connector (1) at air mass meter G70.
4. Remove bolt (3) and move clear exhaust gas pressure sensor 1G450(item 4) at air pipe.
5. Move clear electrical connector (2) for temperature sender after particulate filter G527 at air pipe.

6. Remove air intake hose with air mass meter G70. To do so, release hose clip (5) and clamps (arrows).
7. Remove air cleaner housing 23Air cleaner; Removing and installing air cleaner housing.
8. Remove bolts (2) and (3).
9. Detach air pipe from air hose (release hose clip (1)).
10. Remove front right wheel.
11. Detach front section of wheel housing liner (front right) and press to rear General body repairs, exterior66Wheel housing liners; Exploded view - wheel housing liner (front).
12. Remove noise insulation (front) (1)General body repairs, exterior66Noise insulation; Exploded view - noise insulation.
13. Remove bolt (1) and nut (3).
14. Detach strut (2) for lock carrier (right-side).
15. Remove bolt (arrow) for ATF lines.
16. Cut open cable tie (3).
17. Unscrew nut (2) and detach earth cable at longitudinal member.
18. Remove nut (1) and detach bracket with wiring harness from subframe.
19. Detach air hose from air pipe (right-side) and move clear to one side (release hose clip (arrow)).
20. Remove poly V-belt from alternator pulley and release tensioner 13Cylinder block (pulley end); Removing and installing poly V-belt.
21. Unscrew bolts (arrows) for alternator approx. 6 turns.
22. Tap carefully on bolt heads with a hammer to release bushes on alternator mountings.
23. Remove bolts completely.
24. Detach alternator from retainer.
25. Unscrew terminal 30/B+ (item 1).
26. Unplug electrical connector (2).
27. Remove alternator (1) towards right side from between wiring harness (2) and ATF lines (3). [Note: Stiff alternator mount bushes must be freed; otherwise the clamping force of the bush will not be adequate even when the bolts are tightened to the correct torque.]
28. To facilitate positioning of alternator, drive back sliding bushes for securing bolts slightly.
29. Install poly V-belt 13Cylinder block (pulley end); Removing and installing poly V-belt.
30. Install air hose and air pipe (right-side) 21Charge air system; Exploded view - charge air system.
31. Install air cleaner housing 23Air cleaner; Removing and installing air cleaner housing.
32. Secure ATF lines 34ATF circuit; Removing and installing ATF lines.
33. Install front noise insulation (General body repairs, exterior66Noise insulation; Exploded view - noise insulation) and front right wheel housing liner (General body repairs, exterior66Wheel housing liners; Exploded view - wheel housing liner (front)).
34. Install front right wheel Running gear, axles, steering44Wheels, tyres; Tightening torque for wheel bolts.
35. Connect battery. Steps required .
36. Start engine and check that poly V-belt runs properly.

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