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How to React When the AdBlue Warning Light Comes On

Model: Volkswagen Passat B7 - Years 2010-2014
Part: AdBlue warning light

When the AdBlue warning light illuminates on the dashboard and indicates a mileage after which the vehicle will no longer start, it means it's time to top up the additive. To do this, follow these steps to ensure the light goes out. After purchasing a canister of additive, open the fuel flap and locate the blue cap of the additive tank. Fill the tank and then turn on the ignition to check that the warning light has turned off.

Updated on 6 June 2026 by ScegliAuto

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