General Information

Safety Precautions

Very hot fuel can burn your skin.

• In extreme cases, the fuel lines and the fuel itself in vehicles with a common rail engine can be as hot as 100 °C (212 °F) after the engine has been turned off. Allow the fuel cool down before opening any line connections otherwise, there is a danger of scalding.

• Wear protective gloves.

• Wear safety glasses.

There is a risk of injury because the fuel is under pressure.

• For safety reasons, if the battery is not disconnected, the fuse for the fuel pump control module must be removed before opening the fuel system, otherwise the fuel pump will be activated by the driver's door contact switch.

• Place clean cloths around the connection before opening the system. Then, release pressure by carefully loosening the connection.

• Wear protective gloves.

• Wear safety glasses.

• Always follow the instructions when disconnecting the battery.

Always observe the following when removing and installing the fuel level sensor or the fuel delivery unit from a full or partially filled fuel tank.

• Before starting the work, place a extracting hose from an exhaust extractor that is switched on, near the fuel tank opening. This will extract the fuel vapors. If no exhaust extraction system is available, a radial fan (as long as the motor is not in the air flow) with a displacement greater than 15 m3/h can be used.