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, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
Part: Car door

See other generations:
Video tutorial

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


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 / E92, E90, E91) 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 / E92, E90, E91) 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 Fob for a BMW 3 Series
How to Program the Key Fob for a BMW 3 Series
BMW Serie 3 (2005-2013 / E92, E90, E91) Today, let's discover how to program the key fob for a BMW 3 Series. First, get inside the vehicle with the key fob and insert it into the ignition c…

Other guides you may be interested in

How to lower the rear seats in the Peugeot 206?

In this tutorial, you will see how to lower the rear seats in the Peugeot 206, a very simple and quick operation, for example, if you need more space in the boot. First, open both the doors and the tailgate, then unclip the seat base and position it vertically. Next, remove the horizontal partition, locate the release levers at the ends of both seatbacks, and, by operating them, lower the seatbacks. To reassemble everything, simply follow the reverse procedure.

Watch the video!


by ScegliAuto

More videos