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 on a Ford Focus

Model: Ford Focus MK 3 - Years 2011-2018
Part: Key

Simply follow this brief guide to understand how to carry out the replacement entirely on your own. First, equip yourself with a flathead screwdriver to separate the two halves of the key, the front and the back. Once done, you will immediately see the battery slot. Now, remove the exhausted battery and install the new battery, making sure to pay attention to the orientation in which you install it. Now simply retrace the steps to reassemble the two halves of the key.

Updated on 24 February 2026 by ScegliAuto

Video tutorial

Related tutorials

How to Replace the Key Battery on a Ford Focus
How to Replace the Key Battery on a Ford Focus
Ford Focus (2011-2018 / MK 3) Start by inserting a thin but sturdy tool into the slot on the side of your Ford Focus key to pry it open. Next, you will need to unclip and remove t…
How to Replace the Remote Battery of the Ford Focus?
How to Replace the Remote Battery of the Ford Focus?
Ford Focus (2011-2018 / MK 3) When the remote for your Ford Focus stops working, the cause is almost always a flat battery. To replace the remote battery of a Ford Focus, you must…
How to Replace the Key Battery in a 2014 Ford Focus
How to Replace the Key Battery in a 2014 Ford Focus
Ford Focus (2011-2018 / MK 3) If the smart key for your 2014 Ford Focus has suddenly stopped working and you want to replace the battery inside, carefully follow these instruction…

Other guides you may be interested in

How to Adjust the Brightness of the Instrument Cluster on a Peugeot 3008?

To adjust the brightness of the instrument cluster on a Peugeot 3008, you need to turn on the ignition and access the settings via the menu located in the central area of the dashboard. In the screen that appears, select the "Display Configuration" option: now, by selecting the "Brightness" option, you can adjust it using the dedicated slider that will appear on the screen. The adjustment should be made with the headlights on as well as with them off. Once the adjustment is complete, you can turn off the instrument cluster.

Watch the video!


by ScegliAuto

More videos