Draining fuel tank if more than 3/4 full - TDI vehicles: Audi A4 B9 (CRTC, CSWB, CVKB, CVNA, …)

🧭 Before you start

Fits: Audi A4 B9 (8W, 2015–)

Don't miss

• Shaft end (1) and tapered adapter (2) of fuel extractor VAS 5190A are not used.Slide shaft end (1) slightly towards rear on hoses.
• Use insulating tape to mark the extraction hose (arrow) at a distance of (a) from the end of the hose.
• A flap (1) is located at the bottom of the filler neck (2) in the fuel tank; it must not be damaged by the extraction hose from VAS 5190A. Therefore, only push the hose in as far as the tape marking (arrow).
• Push extraction hose from VAS 5190A into fuel tank until marking on hose (arrow) is level with edge of filler neck with funnel (3).
• When no more fuel is extracted, the fuel tank has been drained enough for the flange to be opened safely.

🔧 Engine codes this applies to

📋 Procedure

1. Observe safety precautions .
2. Observe rules for cleanliness .
3. Open tank flap.
4. Clean area around fuel filler neck.
5. Remove filler cap (arrow) for fuel filler neck. [Note: Shaft end (1) and tapered adapter (2) of fuel extractor VAS 5190A are not used.Slide shaft end (1) slightly towards rear on hoses.]

6. Use insulating tape to mark the extraction hose (arrow) at a distance of (a) from the end of the hose.
7. Insert funnel T40256 in fuel filler neck as far as stop.
8. Push extraction hose from VAS 5190A into fuel tank until marking on hose (arrow) is level with edge of filler neck. [Note: A flap (1) is located at the bottom of the filler neck (2) in the fuel tank; it must not be damaged by the extraction hose from VAS 5190A. Therefore, only push the hose in as far as the tape marking (arrow).]
9. Push extraction hose from VAS 5190A into fuel tank until marking on hose (arrow) is level with edge of filler neck with funnel (3).
10. Extract fuel from tank via fuel filler neck.
11. Pull out extraction hose carefully. [Note: When no more fuel is extracted, the fuel tank has been drained enough for the flange to be opened safely.]
12. Open flange Removing and installing fuel delivery unit/fuel gauge senders - TDI vehicles.
13. Pull flange slightly out of opening in fuel tank.
14. Insert extraction hose of VAS 5190A into fuel tank between flanges.
15. Using fuel extractorVAS 5190A, extract fuel through opening.
16. Four-wheel drive vehicles: Extract fuel from both fuel tank chambers through opening using fuel extractorVAS 5190A.

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