Safety Precautions When Working On Fuel System
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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.
Leaking fuel increases the risk of fire.
When the battery is connected, the door contact switch activates the fuel pump when opening the driver door. Leaking fuel may ignite and start a fire.
-- Before opening the fuel system, cut off 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 the procedures, switch on the exhaust extracting system and place an extraction hose near the fuel tank installation opening to extract escaping 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 m (49.2 feet)3 /h can be used.