Removing and installing alternator, 3.0 l TDI engine, 176 kW — VW

🧭 Before you start

Disconnect the battery, unclip the engine cover from its four pins and remove the two charge air connecting hoses. Remove the belt and noise insulation, lever off the protective cap and remove the idler pulley bolt, then unbolt the alternator and lift it off with the wiring attached. Disconnect the wiring and remove it. On refit, knock the bushes back, fit the belt, reconnect the battery, start up to check the belt, and torque all joints to the assembly overview values.

Fits: VW Touareg II (7P, 2010–2018)

• Renewed: self-locking nut

Don't miss

• Pull the engine cover off each of the four retaining pins in turn, not all at once.
• If the alternator sticks, unscrew bolts to 2 turns and tap the heads to free the bushes.
• Renew the self-locking nut on the alternator wiring.
• Loosen tight mounting bushes, otherwise clamping force stays too low even at correct torque.
• Start the engine after refit and confirm the belt runs straight on every pulley.

Written for this job from the workshop steps below · TorqFix editorial.

📋 Procedure

1. With ignition switched off, disconnect earth wire from battery .
2. Carefully pull engine cover panel successively from the 4 retaining pins (arrows).
3. To gain better access to alternator remove the two connecting hoses of charge air pipes 21.
4. Remove poly V-belt 13.
5. Remove noise insulation General body repairs, exterior50Assembly overview - noise insulation.

6. Lever off protective cap (arrow) using a screwdriver.
7. Remove securing bolt of idler pulley (arrow).
8. Remove bolts (arrows) and take off alternator, taking connected wiring length into consideration. [Note: If alternator is stuck on its bracket, unscrew bolts to 2 turns.Carefully hit bolt heads with flat side of hammer to release bushes of alternator mounting.]
9. Remove electric wiring (1) and (2) from alternator.
10. Release the electrical wiring harness and remove the alternator from the vehicle. [Note: Renew self-locking nut.]
11. To facilitate positioning of alternator, knock back slightly bushes for securing bolts.
12. ⚠ Tight bushes of alternator mounting must be loosened; otherwise clamping force of bush is too low despite right torque. — Install poly V-belt 13.
13. Reconnect battery .
14. Start engine and check belt is running correctly.
15. Tighten threaded connections to torques specified in assembly overview .

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