Safety Precautions When Working On The Fuel Supply System

Safety precautions when working on the fuel supply system

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

When removing and installing the fuel gauge sender or fuel pump (fuel delivery unit) from a full or partly full fuel tank the following must be observed:

WARNING: Fuel supply lines are under pressure! Before removing from hose connection wrap a cloth around the connection. Then release pressure by carefully pulling hose off connection.

^ Before beginning work, switch on exhaust extraction system and place an extraction hose close to the sender opening in the fuel tank to extract escaping 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.
^ Prevent skin contact with fuel! Wear fuel resistant gloves!





^ For reasons of safety, remove fuse No. 28 from the fuse holder before opening the fuel system. This is because the fuel pump can be activated by the driver's door contact switch.