Checking vane pump delivery pressure, 4-cylinder diesel engine — AUDI

🧭 Before you start

Fits: platform codes 2EA, 2ED, 2EH, 2EX, 2EB, 2EE, 2EK, 2FC, 2FF, 2FL, 2FZ, 2FG, 2FM

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• Ensure that the shut-off valve is not closed in position (1) for more than 5 seconds to avoid damage to the vane pump.

📋 Procedure

1. Clamp off suction hose at vane pump with hose clamp to 25 mm3094.
2. Remove pressure line from vane pump.
3. Fit special tools as shown in illustration.
4. Remove hose clamp, up to 25 mm3094 from suction hose.
5. Top up hydraulic fluid in reservoir if necessary .

6. Start engine.
7. Turn steering wheel approx. 10 times from lock to lock.
8. Check delivery pressure
9. With engine idling, close shut-off valve on pressure gauge (position (1)) for no longer than 5 seconds. Read pressure on power steering testerV.A.G 1402. [Note: Ensure that the shut-off valve is not closed in position (1) for more than 5 seconds to avoid damage to the vane pump.]
10. Remove pressure gauge and adapter.
11. Bleed steering system .
12. Check hydraulic fluid level and top up with hydraulic fluid if necessary .
13. Check steering system for leaks .

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