Do it yourself
Frequently asked questions about cars and motorcycles
Car tutorial (Do it yourself) Motorcycle tutorial (Do it yourself) Frequently Asked Questions

Replacing the Door Central Locking Mechanism

Model: BMW Serie 3 E46 - Years 1998-2006
Part: Car door

I will explain how to replace the central locking mechanism of your car. First, gather Phillips screwdrivers, Torx keys, and a trim removal tool kit. Disconnect the battery of your car to work safely! After that, let's start removing the door panel by unscrewing the Phillips screws located under the armrest. Use the trim removal kit to detach the clips on your door. After removing the airbag clips, you will find a Phillips screw; remove it, and then detach the panel, but not completely, as you need to disconnect all the connectors first. Once everything is disconnected, remove the panel. Now, you will need to disassemble the window regulator mechanism and also remove the glass for easier access later. After removing the glass and the window regulator, use a Torx key to remove the screw located in the left hole of the door that holds the lock cylinder, and then the three screws that secure the door lock, being careful with the connector that you need to disconnect. Now, get the new replacement part and reassemble everything in reverse order, and your job will be complete.

Updated on 26 February 2026 by ScegliAuto

Video tutorial

Related tutorials

Removing the Central Locking Module from BMW 3 Series E90
Removing the Central Locking Module from BMW 3 Series E90
BMW Serie 3 (2005-2013 / E91, E90, E92) Follow these simple instructions to remove the central locking module from a BMW 3 Series E90. First, open the front door and remove the door panel b…
How do you reset the central locking system of the BMW 3 Series e90?
How do you reset the central locking system of the BMW 3 Series e90?
BMW Serie 3 (2005-2013 / E91, E90, E92) The inability to open and close the central locking of one's car is often caused by a dead key battery or a broken remote control. However, this may …
How to program the key remote for the BMW 3 Series
How to program the key remote for the BMW 3 Series
BMW Serie 3 (2005-2013 / E91, E90, E92) Today we will learn how to program the remote control key of the BMW 3 Series. First, get into the car with the remote control and insert it into the…

Other guides you may be interested in

How to Open the Fuel Filler Cap of the 2020 Hyundai Tucson

The 2020 Hyundai Tucson has two methods for opening the fuel filler flap. Both methods can only be used if the key has been removed from the ignition and the engine is off. The first method involves removing the key from the ignition and keeping all the car locks open, then go to the flap and press it. This will open the flap. The second method is to stay in the car, remove the key from the ignition, and then press the fuel filler release button located on the left door.

Watch the video!


by ScegliAuto

More videos