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Replace the Key Fob Battery of an 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

Replace the key fob battery of your Audi A3 by following simple steps. Take your key fob and press the metal key release button.

Once the metal key is out, use a screwdriver to pry between the two covers of the key (in the space where the metal key fits). Pry until the cover opens, then, remove the worn battery with a small screwdriver, take a new one of the same size and voltage.

Refit the cover on your key fob by pressing on the key case until you hear it click into place. Check the proper functioning of the key fob by pressing the buttons.


Updated on 27 February 2026 by ScegliAuto


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How to Activate the Automatic Folding and Unfolding of the Wing Mirrors on the Jeep Compass

Follow these brief instructions to activate the automatic folding and unfolding of the external wing mirrors on the Jeep Compass. First, get inside the vehicle and turn on the ignition; then press the button located beneath the mirror glass adjustment to electrically open the mirror, as shown in the video. Pressing the button in the opposite direction will close the mirrors; by holding the button, the mirrors will open and close automatically!

Watch the video!


by ScegliAuto

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