Fuel Supply System Safety Precautions

WARNING: This page is about a different car, the 2014 Volkswagen Touareg, 2013 Volkswagen Touareg, 2012 Volkswagen Touareg, and 2011 Volkswagen Touareg. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION:

For reasons of safety, if the battery has not been disconnected, fuel pump fuse must be removed before opening the fuel supply system as the fuel pump will be activated by the driver door contact switch. Fuse assignment. Refer to appropriate service information.

When doing any repair work, especially in the engine compartment, pay attention to the following due to clearance issues:

Route lines of all types (for example for fuel, hydraulic, Evaporative Emission (EVAP) canister system, coolant and refrigerant, brake fluid, vacuum) and electrical wiring so that the original path is followed.
To prevent damage to the lines, make sure there is sufficient clearance to all moving or hot components.

Always observe the following when removing and installing the fuel level sensor or the fuel pump (fuel delivery unit) from full or partially filled fuel tanks.

Before starting work, place the extracting hose on an exhaust extractor that is switched on near the fuel tank assembly opening. This is the only way fuel vapors can be extracted. 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.
Do not let fuel come in contact with bare skin. Wear fuel-resistant gloves.
If the engine is to be operated at starting speed without starting: disconnect the power output stage connector.