volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Checking fuel pump > < Removing and installing fuel tank
Crash fuel shut-off
Crash fuel shut-off
Function
Vehicles with an airbag are fitted with a crash fuel shut-off. It reduces the danger of a fire in a crash as the fuel pump is switched off via the fuel pump relay. The system also improves the starting characteristics of the engine. When door is opened, the fuel pump is activated for 2 seconds to build up pressure in the fuel system.
When opening fuel system:
Observe safety precautions → Chapter.
–  Check fuel pump relay: → Current flow diagrams, Electrical fault finding and Fitting locations
   

Checking fuel pump > < Removing and installing fuel tank