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How to Replace the Key Fob Battery for the BMW 3 Series

Model: BMW Serie 3 E92, E90, E91 - Years: 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
Part: Key

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Video tutorial

Replacing the battery in the key fob for the BMW 3 Series model E90 is a simple and quick task that can be done in under a minute. Press the button on the top of the key fob to remove the top cover and take out the emergency key. Remove the emergency key and insert it into the slot to split the key fob into two parts.

Replace the battery and close the key fob. Insert the key back in and attach the top part. To complete the procedure, test the key fob by pressing the lock and unlock buttons when near the vehicle.


Posted on 14 July 2026 by ScegliAuto


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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.

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by ScegliAuto

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