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How to Replace the Remote Battery on an Audi A3?

Model: Audi A3 8V, MK 3 - Years: 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019
Part: Key

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Video tutorial

In this video, see how to replace the remote battery on an Audi A3. This is a very simple operation; you only need a small flat-head screwdriver and, of course, a replacement CR2032 battery. First, extend the emergency key by pressing the designated button, then lever in the indicated slot with the screwdriver tip to unlock the rear cover.

Once fully opened, remove the old battery and insert the new one, ensuring the positive pole is facing upwards.


Updated on 6 June 2026 by ScegliAuto


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How to Reset the AdBlue Warning Light on a Peugeot Boxer

To reset the AdBlue system on a 2018 Peugeot Boxer, follow these steps: Start the engine and ensure the vehicle is parked in a well-ventilated area. Locate the "MENU" button on the dashboard or steering wheel controls. Press and hold the "MENU" button until the menu options appear on the display. Use the arrow buttons or scroll wheel to access the "Vehicle Settings" or "Settings" menu. Select the "AdBlue" or "AdBlue System" option. Look for the "Recharge" or "Reset" option in the AdBlue menu. Once you find the reset option, select it and confirm your choice when prompted. The system will be reset, and a confirmation message may appear on the display. Turn off the engine and wait a few seconds. Restart the engine and check that the AdBlue system has been reset.

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by ScegliAuto

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