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 battery of the key for the BMW 3 Series F31

Model: BMW Serie 3 F30, F31 - Years 2012-2019
Part: Key

In order to replace the button battery inside the key of your BMW 3 Series F31 on your own, simply follow the steps described in our new guide. First, remove the emergency key from inside the cover, then use it to remove the back cover and locate the exhausted battery. Once found, remove it and replace it with a new battery of the same type, CR2450. Finally, reassemble the back cover and insert the physical emergency key inside to successfully complete the procedure.

Posted on 24 June 2025 by ScegliAuto

Video tutorial

Related tutorials

How to Replace the Key Fob Battery of a BMW 3 Series F31
How to Replace the Key Fob Battery of a BMW 3 Series F31
BMW Serie 3 (2012-2019 / F30, F31) In this guide, you will see how to replace the key fob battery of a BMW 3 Series F31. The first step is to pull the key out of the fob, as shown at 0…
How to Replace the Battery in a BMW 3 Series F31
How to Replace the Battery in a BMW 3 Series F31
BMW Serie 3 (2012-2019 / F30, F31) Unlike many drivers who expect to find the battery under the hood, the BMW 3 Series F31 has its battery located in the rear cargo area. To access it,…
Battery location of the BMW 3 Series version F31.
Battery location of the BMW 3 Series version F31.
BMW Serie 3 (2012-2019 / F30, F31) In this video, the YouTuber, owner of a BMW 3 Series F31 version, wanted to help us by publishing this video that helps all owners of this version to…

Other guides you may be interested in

How to Bleed the Clutch on a Renault Clio?

To bleed the clutch on a Renault Clio, open the bonnet to access the components located in the engine bay: here, you will need to undo the screws that secure the battery in its housing, the intake manifold, and the coolant reservoir. This will allow you to locate the pipe through which the brake fluid flows: by inserting the other end of the pipe into a container, you can press the clutch pedal to expel all the fluid until it fills the container.

Watch the video!


by ScegliAuto

More videos