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Replacing the Battery or Shell on Opel Astra K Key

Model: Vauxhall Astra Astra K - Years 2015-2022
Part: Key

First, press the designated button on the back of the cover and remove the key from the shell. Now, using the same key (or a flat-head screwdriver to avoid damaging the key), lever in the slot of the remote as shown in the video. This will open the shell in two halves, giving you access to the battery: if your aim is to replace the flat battery, simply remove it and replace it. If you want to change the shell, you will need to extract the internal chip from the remote and insert it into a new remote that you have purchased. Good luck!

Updated on 19 April 2026 by ScegliAuto

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