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How to Change the Remote Battery on 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

If pressing the unlock and lock buttons on the remote key does not activate the locks, it's likely that the remote battery has run out. To replace the battery in this key model, do not separate the remote shells; instead, there is a cap on the back of the key. Simply lever in the slot at the base of the cap to detach it and access the battery compartment.

Remove the old battery and insert the new one, ensuring correct polarity before replacing the cap.


Updated on 19 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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