| Safety precautions when working on the fuel supply system |
WARNING | The fuel system is pressurised. Before opening the system place a clean cloth around the connection. Then release pressure by carefully loosening the connection. |
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| Perform the following steps before starting to work on the fuel supply system: |
Caution | Observe notes on procedure for disconnecting the battery → Rep. Gr.27. |
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| With ignition switched off, disconnect earth strap from battery. |
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| Briefly open filler cap for fuel tank and close again. |
| When removing and installing components from a full or partly full fuel tank, note the following: |
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| Fuel tank must not be full. The amount of fuel which can be left in the tank is indicated in the corresponding procedure description. Drain the tank if necessary. |
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| Before commencing work, switch on exhaust extraction system and place an extraction hose close to the sender opening in the fuel tank to extract escaping petrol fumes. If no exhaust extraction system is available, a radial fan with a displacement of at least 15 m3/h can be used (the fan motor must be clear of the air stream). |
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| Avoid skin contact with fuel. Wear fuel-resistant gloves. |
| When removing and installing fuel tank, note the following: |
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| Fuel tank must be empty to reduce weight. Drain the tank if necessary. |
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| Procedure for draining the fuel system: Front-wheel drive vehicles with MPI and 2.0 litre FSI engine → Chapter, front-wheel drive vehicles with 4-cylinder TFSI and 6-cylinder FSI engine → Chapter, four-wheel drive vehicles up to 10.2004 → Chapter, four-wheel drive vehicles from 11.2004 onwards → Chapter. |
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