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    4. : Why doesn't the AdBlue warning light on the Audi A4 reset?

Why doesn't the AdBlue warning light on the Audi A4 reset?
Years 2014-2023

Answer

If the AdBlue warning light on the Audi A4 does not reset even after refilling, it is likely that the level detection sensor is damaged; furthermore, a fluid with an insufficient urea percentage may have been introduced.
Posted on: 27 April 2023 by ScegliAuto

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