Removing and installing vane pump, W12 petrol engine: VW Touareg I

🧭 Before you start

Fits: VW Touareg I (7L, 2002–2010)

• Opens: brake fluid, power steering fluid

Don't miss

• Mark direction of rotation of poly V-belt.
• When removing vane pump pulley, observe shim located behind it. It is important for the measurement and adjustment of the vane pump.Do not yet remove shim from vane pump gear.
• When installing poly V-belt, ensure that it is correctly seated in belt pulleys.

📋 Procedure

1. ⚠ Please note the following points during all assembly work, in particular in the engine compartment, due to the narrow installation conditions:Route lines of all kinds (for example for fuel, hydraulic fluid, activated charcoal filter system, coolant, refrigerant, brake fluid, vacuum) and electrical cables so that the original line/cable routing is reestablished.Make sure there is adequate clearance from all moving or hot components. — Remove front left wheel.
2. Remove front left wheel housing liner General body repairs, exterior66Wheel housing liners; Assembly overview - front wheel housing liner.
3. Remove air filter completely 24.
4. Remove noise insulation for engine General body repairs, exterior50Assembly overview - noise insulation.
5. Loosen bolts for vane pump belt pulley (arrows).

6. Mark direction of rotation of poly V-belt.
7. Swing tensioner in direction of (arrow) to relieve tension on poly V-belt.
8. Remove poly V-belt.
9. Unbolt vane pump belt pulley from vane pump. [Note: When removing vane pump pulley, observe shim located behind it. It is important for the measurement and adjustment of the vane pump.Do not yet remove shim from vane pump gear.]
10. Clamp suction hose with hose clamp3094.
11. Unscrew pressure line (1) from vane pump.
12. Seal pressure line using plastic bag or suitable alternative.
13. Open spring-type clip and pull suction hose off vane pump.
14. Unscrew bolts from rear of vane pump (arrows).
15. Unscrew bolts from front of vane pump (arrows) and remove vane pump.
16. Measure dimension (a).
17. Note measured value.
18. Measure dimension (a) without shim on new vane pump.
19. Note measured value.
20. Calculate shim thickness .
21. Fill vane pump with hydraulic fluid.
22. Fill vane pump with fluid through intake connecting piece.
23. Turn hub by hand until fluid exits from pressure side.
24. Fit vane pump and insert all bolts.
25. Tighten bolts at front of vane pump first (arrows).
26. Tighten bolts at rear of vane pump (arrows).
27. Check level of hydraulic fluid and top up if necessary 17.1Power steering: check fluid level.
28. Install poly V-belt and check belt alignment 13Dismantling and assembling engine; Checking alignment of poly V-belt. [Note: When installing poly V-belt, ensure that it is correctly seated in belt pulleys.]
29. Check steering system for leaks .
30. Now calculate shim thickness using values measured (a).
31. Install vane pump.

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