Vehicles with 3.0 ltr. TDI engine - alternator with air cooling — AUDI

🧭 Before you start

Fits: Audi Q7 (4L, 2005–2015)

• Renewed: self-locking nuts

Don't miss

• If alternator sticks in bracket, screw bolts back in again down to the last 2 turns.Tap carefully on bolt heads with flat side of hammer to release bushes of alternator mount.
• 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.
• When installing poly V-belt, make sure it is properly seated on pulleys.

📋 Procedure

1. With ignition switched off, disconnect earth cable at battery .
2. Carefully pull engine cover panel off four retaining pins one after the other (arrows).
3. ⚠ Risk of breakage if the poly V-belt runs in the opposite direction when refitted.Before removing, mark direction of operation of poly V-belt with chalk or felt-tipped pen in preparation for re-installation. — To slacken poly V-belt, pivot tensioner in direction of (arrow) using socket Torx T 60T40087.
4. Remove poly V-belt from tensioning roller.
5. Remove front wheel (right-side).

6. Unscrew bolts and detach front noise insulation (1) and rear noise insulation (2).
7. Remove anti-roll bar 40.
8. Remove bolt (arrow) and move fuel cooling pump V166 to side with coolant hoses and electrical connector still attached.
9. Detach wires (1) and (2) at alternator.
10. Move wiring harness clear.
11. Unscrew bolts (arrows) and detach alternator. [Note: If alternator sticks in bracket, screw bolts back in again down to the last 2 turns.Tap carefully on bolt heads with flat side of hammer to release bushes of alternator mount.] [Note: Renew self-locking nuts.]
12. To facilitate positioning of alternator, drive back bushes for securing bolts slightly. [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.]
13. Install anti-roll bar 40.
14. Fit poly V-belt over pulleys. [Note: When installing poly V-belt, make sure it is properly seated on pulleys.]
15. Connect battery. Steps required .
16. Start engine and check that belt runs properly.

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