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How to Replace the Key Fob Battery on an Opel Astra K

Model: Vauxhall Astra Astra K - Years: 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022
Part: Key

See other generations:
Video tutorial

In this video, see how to replace the flat battery in the key fob of the Opel Astra K series. The key is quite common across other Opel models.

You will need a CR 2032 3V battery and a flathead screwdriver. Start by pressing the button to extract the metal blade, then use the screwdriver to pry open the metal casing.

Now you can remove the battery and replace it with a new one. Reattach the casing of the key fob and insert the metal blade back in, and you're done. As you can see, it's a simple and quick operation.


Updated on 27 May 2026 by ScegliAuto


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by ScegliAuto

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