Fuel Tank Vent: Description and Operation

Fuel Supply, Low-pressure Side







Tank ventilation

The fuel tank is aerated and vented exclusively via the active carbon filter, which acts as an intermediate storage device for any HC emissions. Regeneration of the active carbon filter takes place via the tank vent valve when the engine is running. The active carbon filter is installed behind the wheel housing liner at the rear right. When the engine is running, the system is vented via the electric tank vent valve (in the engine compartment) to the intake system of the engine.