Removing and installing alternator - vehicles with 4.2 ltr. FSI engine from model year 2013 onwards — AUDI

🧭 Before you start

Fits: platform code 42

• Opens: coolant
• Special tools named: 3094

Don't miss

• Place a cloth underneath to catch escaping coolant.
• Make sure poly V-belt is properly seated and correctly routed.

📋 Procedure

1. With ignition switched off, disconnect earth cable at battery .
2. Remove tensioner for poly V-belt 13.
3. Drain coolant from engine 19.
4. Clamp off coolant hose (1) using hose clamp 3094.
5. Unplug electrical connector (3).

6. Detach protective cap from B+ wire.
7. Unscrew nut (1) and disconnect B+ wire (2).
8. Release hose clips and detach coolant hoses (5, 6). [Note: Place a cloth underneath to catch escaping coolant.]
9. Unscrew bolts (arrows) for alternator (4) approx. 6 turns.
10. Tap carefully on bolt heads with a hammer to release sliding bushes securing alternator.
11. Remove bolts.
12. Remove alternator together with coolant pipes.
13. Detach coolant hoses from coolant pipes at alternator. [Note: Secure all hose connections with the correct type of hose clips (same as original equipment) Electronic parts catalogue.You must ensure that the bushes slide freely, as the clamping pressure of a stiff bush will be insufficient even when the correct tightening torque is applied.]
14. To facilitate positioning of alternator, drive back sliding bushes for securing bolts slightly.
15. Install tensioner for poly V-belt 13.
16. Make sure poly V-belt is properly seated and correctly routed.
17. Connect battery. Steps required .
18. Fill with coolant 19.
19. Start engine and check that belt runs properly.

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