Do it yourself
Frequently asked questions about cars and motorcycles
Car tutorial (Do it yourself) Motorcycle tutorial (Do it yourself) Frequently Asked Questions

How to Replace the Key Battery of the Volvo S40

Model: Volvo S40 MK 2 - Years 2004-2012
Part: Key

To correctly complete the replacement of the battery located inside the key of your second-generation Volvo S40, follow the procedure described in the following guide. First, purchase a new CR2450 battery, then take the car remote and slide out the physical emergency key from inside it. Once this simple operation is complete, use the same emergency key to remove the protective cover and proceed to replace the old exhausted battery with the new one. Finally, reassemble the remote cover, and you are done.

Posted on 1 February 2026 by ScegliAuto

Video tutorial

Related tutorials

Replacing the Battery of the Volvo S40
Replacing the Battery of the Volvo S40
Volvo S40 (2004-2012 / MK 2) Replacing the battery of the Volvo S40? Remove the battery if it is faulty and non-rechargeable. Open the car's door and pull up the engine compartme…
Where is the Fuse Box on a 2007 Volvo S40?
Where is the Fuse Box on a 2007 Volvo S40?
Volvo S40 (2004-2012 / MK 2) To access the fuse box on your Volvo S40, follow the simple procedure described in this guide. First, ensure you park on a flat surface and completel…
How to Replace the Remote Battery in a Volvo S40?
How to Replace the Remote Battery in a Volvo S40?
Volvo S40 (2004-2012 / MK 2) Replacing the remote battery in a Volvo S40, as shown in this tutorial, is an extremely simple and cost-effective operation. To do this, you will nee…

Other guides you may be interested in

How to Open the Bonnet of a Renault Megane if the Lever is Broken?

If the lever that unlocks the bonnet of the Renault Megane is broken or not functioning, there is an emergency procedure to unlock the mechanism: remove the right front grille located at the top of the bumper. Once the grille is removed, you can locate the actuator mechanism: by pulling the spring in this position, you can unlock the actuator, allowing you to lift the bonnet and access the components located inside the engine compartment. You can then close the bonnet simply by lowering it.

Watch the video!


by ScegliAuto

More videos