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How to Remove the Rear Lock on Mercedes C-Class W203?

Model: Mercedes Classe C W203 - Years 2000-2007
Part: Door lock

In the attached video, we can see how to remove the rear door lock of the Mercedes C-Class W203. First, we need to remove the inner door panel, then disconnect the lock connector and remove the plastic clips that hold the cable in place. Be careful not to damage the clips, as we will need to reuse them later. Now, remove the 3 Torx screws that secure the lock using a T30 Torx wrench, and then the single screw that holds the foam piece inside the door. Now we can extract the lock unit and replace it, remembering to attach the bracket before installing it, as shown in the video.

Updated on 26 April 2026 by ScegliAuto

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On the Peugeot 407, the boot may become stuck, possibly due to a problem with the control button or the lock actuator. In such cases, you can perform an emergency opening by following the simple procedure shown in this tutorial. First, open the rear doors, then lower the seat back by operating the release lever. Next, go inside the boot, locate the lock, and manually operate it using a flathead screwdriver. The boot will then be free to open.

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