Checking vane pump delivery pressure, V8 FSI engine: VW Touareg I

🧭 Before you start

Fits: VW Touareg I (7L, 2002–2010)

• Special tools named: 3094

Don't miss

• Start engine, close cut-off valve (position (1)) with engine idling and read off pressure. Do not leave cut-off valve closed for longer than 10 seconds.

📋 Procedure

1. ⚠ The hose clamps, up to 25 mm Ø 3094 must not be secured in area of the non-return valve on the return supply hose. Otherwise, the non-return valve will be damaged.The non-return valve is located in the return supply hose between the bulges (arrows A) or between the clamps (arrows B). — Clamp off suction hose and return line at reservoir using hose clamps to 25 mm ∅3094.
2. Remove front noise insulation General body repairs, exterior50Assembly overview - noise insulation.
3. Secure power assisted steering testerV.A.G 1402(3) to anti-roll bar (1) using a cable tie (2).
4. Remove banjo bolt (6).
5. Assemble adapter as shown in figure.

6. Remove hose clamps 25 mm ∅3094.
7. Start engine and if necessary replenish hydraulic fluid in reservoir.
8. Turn steering wheel approx. 10 times from lock to lock. [Note: To avoid damaging the pump, please note the following points:Cut-off valve of pressure gauge must not remain closed for more than 10 seconds during this test.Start engine without pressing accelerator and leave it running at idling speed.Take pump pressure reading at idling speed immediately after starting engine (have second mechanic take reading).The pressure will drop during the test; the highest pressure reading is therefore the required test value.]
9. Now check delivery pressure.
10. Start engine, close cut-off valve (position (1)) with engine idling and read off pressure. Do not leave cut-off valve closed for longer than 10 seconds.
11. Switch off engine.
12. Remove power steering testerV.A.G 1402.
13. Install banjo bolt with new seals . Note installation position of pressure line .
14. Bleed steering system .
15. Check level of hydraulic fluid and top up if necessary 17.1Power steering: check fluid level.
16. Check steering system for leaks .
17. Install front noise insulation General body repairs, exterior50Assembly overview - noise insulation.

Other VW procedures

• Removing engine · 41 torque figures
• Removing and installing camshaft – VW Golf Cabriolet · 47 torque figures
• Adjusting valve timing – VW Passat B5 · 83 torque figures
• Removing and installing camshafts – VW Passat B6 · 39 torque figures
• Removing and installing coolant pump · 53 torque figures
• Removing and installing lower part of centre console · 2 torque figures
• Removing and installing seat height adjustment mechanism · 2 torque figures
• Removing and installing seat cover and seat padding for seat pan
• Removing and installing gas pressure regulator – VW 2.0
• Removing and installing brake master cylinder, LHD vehicles