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How to Reset the AdBlue Warning Light on the Audi A4?

Model: Audi A4 B9 - Years: 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024
Part: AdBlue warning light

Video tutorial

To reset the AdBlue warning light on the Audi A4, you need to refill the additive fluid by pouring it into the designated tank. After obtaining a fluid with the correct specifications, open the fuel door: behind it, you will find the cap for refueling gasoline and the cap for the AdBlue tank.

After unscrewing the cap, you can refill by pouring the necessary amount of additive fluid into the tank. Once refilled, close the cap and the fuel door, and check that the warning light has turned off.


Updated on 25 April 2026 by ScegliAuto


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by ScegliAuto

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