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How to Replace the Key Battery in Your Audi A3

Model: Audi A3 8P, MK 2 - Years: 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
Part: Key

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Video tutorial

Start by pressing the silver button on the top of your Audi A3 key to extract the physical key from the electronic key. Using a small flathead screwdriver, pry off the rear cover of the key. This will expose the depleted key battery. At this point, you can remove it by simply dislodging it, completing the disassembly.

To install the new battery and close the key, simply reverse these instructions, and you will have finished the replacement.


Updated on 4 April 2026 by ScegliAuto


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How to Reset the Tyre Pressure Warning Light on a Kia Rio?

The tyre pressure warning light displayed on the instrument cluster of the Kia Rio can be reset by inflating the tyres until they reach the recommended pressure value: this value is indicated on the sticker affixed to the driver's door pillar. Once all tyres have been inflated to the recommended pressure, turn on the ignition to check that the light has disappeared: if it is still present, it may be necessary to drive for a few miles, allowing the sensors to work and thus turning off the light.

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by ScegliAuto

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