Vehicle Damage Warnings

Safety Precautions

CAUTION!
Fuel pressure in high pressure pipes can be up to 120 bar! Follow safety measures for releasing pressure on high pressure side. Refer to --> [ Releasing Pressure on High Pressure Side ] Service and Repair.

For reasons of safety, if the battery has not been disconnected, Fuel Pump (FP) fuse must be removed before opening the fuel system as the FP will be activated by the driver's door contact switch. For fuse assignment, refer to.

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

• Route lines of all types (e.g. for fuel, hydraulic, Evaporative Emission (EVAP) system, coolant and refrigerant, brake fluid, vacuum) and electrical wiring so that the original path is followed.

• To prevent damages 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 from full or partially filled fuel tanks.

• Before starting work, switch on exhaust extraction system and place an extraction hose close to the installation opening of 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 fuel from contacting skin! Wear fuel resistant gloves!

• If engine is to be cranked at starting RPM without starting:

- Remove ignition coils with power output stages from cylinders 1 through 8. Refer to --> [ Ignition Coils with Power Output Stage ] Service and Repair.