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 2016 BMW M4 Competition

Model: BMW BMW Various
Part: Key

Video tutorial

If you own a 2016 BMW M4 Competition and want to replace the key battery, simply read the following guide carefully and follow the various steps described. The first thing to do is locate the button on the back of the cover and press it to easily slide out the physical emergency key contained within the cover.

Next, use a flat screwdriver to remove the rear cover and gain access to the battery. Replace the battery with a brand new model and finally reassemble the rear cover.


Updated on 28 May 2026 by ScegliAuto


Related tutorials

How to Change the Battery of the BMW Remote Key?
How to Change the Battery of the BMW Remote Key?
BMW BMW Various When you notice that the remote key no longer opens the doors, the battery inside has likely run out. To replace the battery, you need a pointed obje…
How to Replace the Key Battery of a BMW
How to Replace the Key Battery of a BMW
BMW BMW Various Replacing the battery in a BMW key is a straightforward task. First, remove the emergency metal key, which is now mandatory on all remote controls. N…
Replacing the Key Battery on BMW Cars
Replacing the Key Battery on BMW Cars
BMW BMW Various Today, you will learn a simple maintenance task that not everyone knows: replacing the BMW key battery. First, press the designated button to extract…

How to open the boot if it is stuck on a Mercedes B-Class?

On the Mercedes B-Class, the boot may become stuck, possibly due to a problem with the control button or the lock actuator. In this case, perform the emergency opening by following the simple procedure shown in this tutorial. First, unlock the locks with the remote control, then open the rear doors and, by operating the indicated lever, lower the backrest of the seat. Next, go inside the boot, locate the indicated gap, and manually unlock the lock using a small screwdriver.

Watch the video!


by ScegliAuto

More videos