Removing and installing fuel tank, front-wheel drive — AUDI

🔧 Engine codes this applies to

📋 Procedure

1. Disconnect battery earth strap with ignition switched off 27Battery; Disconnecting and connecting battery.
2. Empty fuel tank as far as possible via fuel filler neck using fuel extractorVAS 5190Emptying fuel tank.
3. Unclip rubber cup from filler neck.
4. Unscrew bolts (3) on filler neck (1).
5. Remove rear left wheel.

6. Remove rear left wheel housing liner General body repairs, exterior66Wheel housing liner; Removing and installing rear wheel housing liner.
7. On Caddy Maxi, unscrew bolt (arrow) for filler neck on side member.
8. Remove rear silencer 26Exhaust pipes/silencers; Removing and installing rear silencer.
9. If fitted, remove heat shield.
10. ⚠ The fuel and the fuel lines in the fuel system can become very hot (danger of scalding)!The fuel system is also under pressure! Before opening the system, place cloths around the connections. Then carefully loosen connection to release the pressure!Wear eye and hand protection when performing any type of repair work on the fuel system! — Separate fuel lines (1) and (2) at front right of fuel tank Separating plug-in connectors.
11. On vehicles with auxiliary heater, detach fuel line (1) from hose (2) on metering pump 82Fuel supply; Removing and installing metering pump V54
12. Support fuel tank with engine and gearbox jackV.A.G 1383 A.
13. Unscrew bolts (arrows) and remove tensioning straps (2).
14. Slowly lower engine and gearbox jackV.A.G 1383 A until 5-pin connector can be pulled off the fuel delivery unit.
15. Continue to lower fuel tank (1). In the process, turn fuel tank and guide filler neck between leaf spring and body.
16. ⚠ The fuel pump must not be allowed to run when the fuel tank is empty, as this may cause deflagrations.The fuel tank must contain at least 5 litres of fuel. — If fitted, check that metering pump V54 is firmly seated.
17. Install breather and fuel lines free of kinks.
18. Make sure that the filler neck of the fuel tank is correctly inserted into the opening in the body.
19. Position the fuel tank together with securing strap on underbody, using the engine and gearbox jackV.A.G 1383 A.
20. Note position of securing strap.
21. After installing fuel tank, check that the supply, return and breather lines are still clipped onto the fuel tank.
22. Make sure bracket for exhaust system is seated correctly 26Exhaust pipes/silencers; Assembly overview - silencers.
23. Ensure that line connections are tight.
24. Ensure connections are secured properly by pulling.
25. Check whether there are signs of oxidation on the earth wire of the connectors, remove if necessary.
26. Check installation position of earth connection.
27. Check the connection of the metal ring on the fuel filler neck by measuring between the ring and a bare metal part of the body using an ohmmeter.
28. Fill fuel tank with at least 5 litres of fuel.

Other AUDI procedures

• Removing and installing fuel tank, four-wheel drive, engine codes BJB, BLS, BSU
• Removing and installing fuel hoses in engine compartment, 6.0 bar low pressure fuel system
• Checking delivery pressure of fuel system pressurisation pump G6, engine codes CAYD, CAYE, CFHC, CFHE, CFHF, CLCA, CFJA
• Checking delivery pressure of fuel system pressurisation pump G6 - vehicles with 0.5 bar low pressure fuel system
• Misfueling - engine code CFHC, CFHF, CLCA, CUUB, CUUC, CUUD, CUUE, CUUF
• Removing and installing toothed belt · 56 torque figures
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• Removing camshaft timing chain from camshafts · 38 torque figures
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• Removing and installing camshaft timing chain · 29 torque figures