Crash fuel shut-off: Function

Models with an airbag are installed with a crash fuel shut-off system. It reduces the danger of a fire in a crash as the fuel pump is switched off via the fuel pump relay.

At the same time this system improves starting of the engine. When the door is opened the fuel pump is activated for 2 seconds to build up the pressure in the fuel system.

When opening the fuel system:

Observe safety precautions → Safety precautions when working on the fuel supply system  .

• Check activation of Fuel Pump (FP) relay J17 with VAG 1466 A referring to wiring diagram: → Electrical Wiring Diagrams, Troubleshooting and Component Locations