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    4. : The key battery light on Audi A3 comes on: what does it mean?

The key battery light on Audi A3 comes on: what does it mean?
Years 2012-2019

Answer

If the light relating to the key battery comes on on your Audi A3 panel, it means that the key needs to be changed (it is very simple, just pry the center line of the key to open it). Sometimes, however, the warning light continues to turn on: it is an error in the control unit, give it a few days and it will reset.
Posted on: 12 October 2020 by ScegliAuto

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