Emptying fuel tank, all-wheel drive - engine code CFHC, CFHF, CLCA, CUUB, CUUC, CUUD, CUUE, CUUF — AUDI

🧭 Before you start

Fits: VW Caddy IV (SA, 2015–2020)

• Opens: fuel

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• The fuel pumps are now actuated. The vehicle diagnostic tester shows the progress of the drainage.
• Make a mark (arrow) on hose with insulating tape at distance (a) = 1700 mm from end of extraction hose.
• Push extraction hose into fuel tank until marking on hose (arrow) coincides with shaft end.
• When no more fuel is extracted, the tank is emptied just enough for the sender flange to be opened without danger.If fuel tank has to be drained fully, proceed as follows .
• In order to extract the remaining fuel from the 2nd chamber, the fuel tank has to be lowered and fuel gauge sender 2G169 lifted up .

🔧 Engine codes this applies to

📋 Procedure

1. ⚠ Fuel supply line is pressurised. Wear eye protection and protective clothing to avoid eye injuries and skin contact. Before loosening hose connections, wrap a cloth around the connection. Then release pressure by carefully pulling hose off connection. — Remove fuel supply line (2)Separating plug-in connectors.
2. Connect fuel extractorVAS 5190 with adapter for fuel extractorVAS 5190 /3 to fuel supply line.
3. If fitted, separate connector (A) to supplementary fuel pump V393.
4. Switch ignition on.
5. Remove cap from fuel filler neck.

6. Connect vehicle diagnostic tester and perform guided function "“Draining fuel system”". [Note: The fuel pumps are now actuated. The vehicle diagnostic tester shows the progress of the drainage.]
7. Open shut-off tap on fuel extractorVAS 5190 until fuel tank is emptied.
8. When the fuel tank is empty, stop the function to prevent the fuel pump from running »dry«.
9. ⚠ Secure earth wire of fuel extractorVAS 5190 to a bare metal part of the body. — Remove cone piece (2) from shaft (1) of fuel extractorVAS 5190.
10. Make a mark (arrow) on hose with insulating tape at distance (a) = 1700 mm from end of extraction hose.
11. Open tank flap.
12. Remove cap from fuel filler neck.
13. Screw shaft (1) of fuel extractorVAS 5190 onto fuel tank filler neck.
14. Push extraction hose into fuel tank until marking on hose (arrow) coincides with shaft end.
15. Drain fuel tank as far as possible.
16. Pull extraction hose out carefully. [Note: When no more fuel is extracted, the tank is emptied just enough for the sender flange to be opened without danger.If fuel tank has to be drained fully, proceed as follows .]
17. ⚠ Fuel tank must not be more than 1/4 full.Fuel supply line is pressurised. Wear eye protection and protective clothing to avoid eye injuries and skin contact. Before loosening hose connections, wrap a cloth around the connection. Then release pressure by carefully pulling hose off connection. — Lower fuel tank Removing and installing fuel tank, four-wheel drive
18. Release connector (arrow) and pull it off flange (1).
19. Disconnect fuel lines (1) and (2) on flange. Separate plug-in connectors Separating plug-in connectors.
20. If fitted, remove fuel line (3) leading to metering pump V54 for auxiliary heater from sealing flange.
21. Open locking ring using wrench T10202.
22. Carefully lift flange of fuel delivery unit.
23. Insert suction hose of fuel extractorVAS 5190 as far as possible into fuel tank. Extract fuel. [Note: In order to extract the remaining fuel from the 2nd chamber, the fuel tank has to be lowered and fuel gauge sender 2G169 lifted up .]

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