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How to Replace the Key Fob Battery of an Audi A4

Model: Audi A4 B8 - Years: 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
Part: Key

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Video tutorial

How to replace the key fob battery of an Audi A4? Let's see in this video how to proceed in detail. Take your key fob and press the button to release the metal key. Once extracted, remove the battery holder from the cover (as shown in the video).

Remove the worn battery from the compartment (after taking out the battery holder from the cover), take a new one of the same size and voltage. Reinstall the plastic battery holder into the key fob cover, then insert the metal key back into the cover.

Check the proper functioning of the key fob.


Updated on 13 March 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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