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How to Replace the Key Battery on the Opel Astra

Model: Vauxhall Astra Astra H - Years 2004-2010
Part: Key

The procedure for replacing the key battery is simple and quick, taking approximately 1 minute, and no tools are required. To replace the battery in the Opel Astra key, first open it as if inserting it into the car. Once done, pull the lower cover of the key outwards to access the key battery. At this point, remove the old battery and insert the new one. Finally, reattach the key cover by pressing it back into place.

Updated on 19 July 2026 by ScegliAuto

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