Draining fuel tank (fuel delivery unit not defective) — AUDI

🧭 Before you start

Fits: Audi Q7 (4M, 2015–)

🔧 Engine codes this applies to

📋 Procedure

1. Observe safety precautions .
2. Observe rules for cleanliness .
3. Switch off ignition.
4. Screw suitable adapter from adapter set for fuel extractionVAS 5190 /10 onto extraction hose (1) of fuel extractor VAS 5190A.
5. Open tank flap.

6. Remove filler cap (arrow) for fuel filler neck.
7. ⚠ Risk of injury - fuel system operates under high pressure.To reduce the pressure in the fuel system, wrap a clean cloth around the connection and carefully loosen the connection. — Move fuel hose clear at retainers (1 and 3). and disconnect plug-in connector (2).
8. Connect extraction hose to supply line in engine compartment with suitable adapter for fuel extractionVAS 5190 /2.
9. Using fuel extractorVAS 5190A, drain fuel tank through supply line.
11. Connect vehicle diagnostic tester.
12. Switch on ignition.
13. Select and start Self-diagnosis mode.
14. Start basic setting without measured values: The fuel pump will start running.
15. Press Stop when no more fuel is extracted.

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