Do it yourself
Frequently asked questions about cars and motorcycles

How to replace the battery of the Opel Astra K key

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

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

Video tutorial

Related tutorials

Vauxhall Astra (2004-2010 / Astra H) The procedure for replacing the key battery is simple and quick and takes about 1 minute to complete, and no tools are needed. To replace the battery…
Vauxhall Astra (2015-2022 / Astra K) To correctly complete the procedure that allows you to replace the battery inside the key of your Opel Astra K, you must carefully read the following…
Vauxhall Astra (2009-2016 / Astra J) In this video tutorial, you can observe the steps to follow to replace the battery of the key remote of an Opel Astra J car. You will not need any sp…

Other guides you may be interested in

    Frequently Asked Questions

    • Astra 2004-2010 - Yellow "car with wrench" warning light on Opel Astra h, what does it mean? Read answer

Installation of Upgraded Intercooler Radiator with Pipes

Lift the vehicle on suitable axle stands, remove the front wheels, and then the front bumper and grille. Proceed to remove the front headlights; drain the coolant, remove the intercooler radiator and the hoses connecting it to the intake system. Position the new intercooler radiator in the grille, temporarily securing it with cable ties, and mark with a marker the part of the metal that needs to be removed to allow the new hoses to pass through. Cut the marked portion of metal and apply a gasket to the edge. Remove the inner cover of the bumper and position it near the radiator to identify any interfering parts to eliminate: again, apply a gasket to the edge of the cut. Create brackets for securing the new radiator and proceed with the installation of the connecting pipes from the radiator to the intake, shaping and connecting them appropriately. Finally, reassemble the bumper, headlights, and grille.

Watch the video!


by ScegliAuto

More videos