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 change the battery of the BMW Series 3 E90 key.

Model: BMW Serie 3 E91, E90, E92 - Years 2005-2013
Part: Key

If the key for your BMW Series 3 E90 is no longer working due to a dead battery, you can follow the procedure below to quickly and safely replace the battery. First, you need to purchase a new CR2032 battery. Then, take the key and unscrew the small screw located on the back of the cover. Once you have done that, remove the back cover and locate the dead battery that needs to be replaced. Finally, remove the dead battery and insert the new one. Reassemble the back cover, and the procedure is successfully completed.

Posted on 20 December 2025 by ScegliAuto

Video tutorial

Related tutorials

How to Replace the Remote Battery in a BMW 3 Series?
How to Replace the Remote Battery in a BMW 3 Series?
BMW Serie 3 (2005-2013 / E91, E90, E92) To replace the battery in the remote for a BMW 3 Series, use a thin object to pry open the groove that forms between the two halves of the remote. On…
How to Replace the Key Battery on a BMW 3 Series E90
How to Replace the Key Battery on a BMW 3 Series E90
BMW Serie 3 (2005-2013 / E91, E90, E92) If the key for your BMW 3 Series E90 (2005-2013) has stopped working and you want to know how to replace the battery, follow these steps carefully. F…
How to replace the battery of the key for the BMW 3 Series E90
How to replace the battery of the key for the BMW 3 Series E90
BMW Serie 3 (2005-2013 / E91, E90, E92) If the key of your BMW 3 Series E90 has stopped working and you want to replace the battery located inside it yourself, all you have to do is follow …

Other guides you may be interested in

How to Replace the Remote Battery for the Volvo XC40?

In this tutorial, you will see how to replace the battery in the remote for the Volvo XC40, a very simple and quick operation. For this, you will need a replacement battery of type CR2032 and possibly a small flathead screwdriver. First, remove the front cover by pressing the button on the metal ring, then locate the second button, press it as well, and remove the opposite cover. Next, open the circular cap, take out the old battery, and insert the new one in the opposite direction. Finally, reassemble everything.

Watch the video!


by ScegliAuto

More videos