volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Sensors and Switches - Fuel Delivery and Air Induction > < Rollover Valve, Fuel Tank|Description and Operation|Page 4967
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NOTE:

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The pressure retention valve is open in both directions of flow, from the evaporative emissions (EVAP) canister and from EVAP canister purge
regulator valve N80 -arrow 1-.

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It is only open in one direction of flow from the junction piece for the gravity/overflow valve -arrow -2-.

Sensors and Switches - Fuel Delivery and Air Induction > < Rollover Valve, Fuel Tank|Description and Operation|Page 4967