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How to Refill AdBlue in the Audi A6

Model: Audi A6 C7, MK 4 - Years: 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
Part: AdBlue warning light

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Video tutorial

If you see a warning about AdBlue when starting your Audi A6 Diesel, you need to refill the tank as soon as possible. First, turn off the engine and park the car safely.

Next, go to the AdBlue filler flap and open it. Unscrew the AdBlue cap with the appropriate wrench, then pour in new AdBlue until the tank is full. You can use a rubber hose or a funnel to help.

Once done, screw the cap back on and close the filler flap.


Updated on 3 July 2026 by ScegliAuto


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by ScegliAuto

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