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How to replace the battery of the Opel Astra K key

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

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Video tutorial

In the following procedure, you will find a description of all the steps you need to follow in order to replace the battery inside the key of your Opel Astra K. First of all, take the car key and remove the protective cover to have access to the battery inside.

Then, remove the old battery and replace it with a new one of the same type.

Once you have done that, simply reattach the protective cover and test the key to ensure it is working correctly to complete the procedure.


Posted on 29 August 2025 by ScegliAuto


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by ScegliAuto

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