Fuel Supply System,Servicing

Safety precautions when working on the fuel supply system

CAUTION: When performing repair work, especially due to the confined conditions in the engine compartment, pay attention to the following:
^ Route all types of hoses/lines (e.g. for fuel, hydraulics, EVAP system, coolant, refrigerant, brake fluid and vacuum) as well as electrical wiring so that the original positions are restored.
^ Ensure sufficient clearance to all moving or hot components.

WARNING:
^ The fuel and the fuel lines in the fuel system can become very hot (danger of scalding)!
^ The fuel system is under pressure! Before opening the system, place cloths around the connections. Then carefully loosen the connection to release pressure
^ Wear eye and hand protection when performing any type of repair work on the fuel system!

When removing and installing the fuel gauge sensor from a full or partly full fuel tank, observe the following:
^ Before starting repairs, switch on exhaust extraction system and place an extraction hose close to the sensor opening in the fuel tank to extract escaping diesel fuel fumes. If no exhaust extraction system is available, a radial fan (as long as motor is not in air flow) with a displacement greater than 15 m3/h can be used.
^ Avoid fuel contact with skin! Wear fuel-resistant gloves!