Vehicles with 1.9 l TDI unit injector engine — AUDI

🧭 Before you start

Fits: Audi A6 C5 (4B)

Don't miss

• Prior to removal, mark direction of poly V-belt with chalk or a felt-tip pen. Running a used poly V-belt in the opposite direction could destroy it.
• The lock carrier does not have to be moved to service position.
• If alternator sticks in holder, 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 released as otherwise the clamping force of the bush will not be adequate even if tightened to correct torque.
• Make sure poly V-belt is properly positioned and correctly routed.

📋 Procedure

1. With ignition switched off, disconnect earth wire at battery .
2. Pull the dipstick (1) out of the guide tube.
3. Unclip caps.
4. Unscrew nuts (arrows) and detach engine cover.
5. Remove insulation underneath.

6. Re-insert dipstick in guide tube. [Note: Prior to removal, mark direction of poly V-belt with chalk or a felt-tip pen. Running a used poly V-belt in the opposite direction could destroy it.]
7. To slacken off poly V-belt, swivel belt tensioner in (direction of arrow).
8. Detach poly V-belt from alternator pulley.
9. Release tensioner. [Note: The lock carrier does not have to be moved to service position.]
10. Provide support for viscous fan pulley with pin wrench3212 and unscrew from holder using 8 mm Allen key (1).
11. Detach viscous fan and set it down in radiator cowl.
12. Unscrew wire (1) at alternator.
13. Unplug connector (2).
14. Lay bare wiring.
15. Screw out bolts (arrows).
16. Detach alternator. [Note: If alternator sticks in holder, 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.]
17. To facilitate positioning of alternator, drive back bushings for securing bolts slightly. [Note: Stiff alternator mount bushes must be released as otherwise the clamping force of the bush will not be adequate even if tightened to correct torque.]
18. Make sure poly V-belt is properly positioned and correctly routed.
19. Connect battery. Action to be taken .
20. Start engine and check belt routing.

Other AUDI procedures

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• Removing and installing coolant pipe (right-side) – Audi · 1 torque figures
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