volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Sensors and Switches - Fuel Delivery and Air Induction > < Diagram Information and Instructions|Page 5090
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Rollover Valve: Description and Operation

Crash Fuel Shut-Off

Function

Vehicles with an airbag are equipped 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.

Simultaneously this system provides an improved start for the engine. When the door is opened the fuel pump is activated for 2 seconds to build-up the
pressure in fuel system.

When opening the fuel system:

Observe safety precautions.

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Check activation of fuel pump relay using wiring diagram and VAG1466 A

Sensors and Switches - Fuel Delivery and Air Induction > < Diagram Information and Instructions|Page 5090