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How to Change the Key Battery of an Audi A4?

Model: Audi A4 B7 - Years: 2004, 2005, 2006, 2007, 2008
Part: Key

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Video tutorial

The procedure shown in the video is useful for replacing a dead battery in the Audi A4 key, but it also works for other remotes structured similarly. It requires very little time, no specific skills, and almost no tools except for a flathead screwdriver or similar tool, and of course, a new button battery.

To proceed with the replacement, find the designated slot to insert the screwdriver to use as a lever to open the remote. The battery is visible; simply remove it, replace it with the new one, and finally, close the remote by applying slight pressure.


Updated on 10 May 2026 by ScegliAuto


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How to Remove the Toll Tag Holder from the Car Windscreen

The toll tag holder is usually attached to the car windscreen to ensure that the toll tag functions immediately when passing through barriers. However, if you decide to remove the holder, you should follow this procedure: - Insert the toll tag into the holder; - Pull the holder inwards to detach it from the windscreen; you can use a glass scraper or a stiff plastic card to assist you; After removing the holder, it is essential to remove the adhesive from the windscreen. To remove the adhesive, we recommend using a solvent-based spray that will remove the glue without clouding the area.

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by ScegliAuto

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