Safety Precautions When Working On Fuel System
WARNING: This page is about a different car, the 2022 Audi Q7. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
There is a risk of injury due to the fuel being under pressure.
The fuel system is under pressure. Injuries are possible from fuel spraying out.
Before opening the fuel system:
Wear protective eyewear.
Wear safety gloves.
Reduce the pressure: place clean cloths around the connection point and carefully open the connection point.
WARNING:
Risk of a fire due to leaking fuel.
When the battery is connected, the door contact switch activates the fuel pump when opening the driver door. Leaking fuel can ignite and start a fire.
Before opening the fuel system, interrupt the power supply to the fuel pump.
Perform the following steps before starting work on the fuel system:
- The fuel tank must be either completely empty or only partially filled. How much fuel can remain in the fuel tank can be found in the respective procedure description. Drain the fuel tank, if necessary. Refer to FUEL TANK, DRAINING .
- Before starting work, switch the exhaust extraction system on and place an extraction hose close to the fuel tank installation opening to extract fuel fumes.
- If no exhaust extracting system is available, a radial fan (as long as motor is not in air flow) with a delivery volume greater than 15 m3 /h can be used.