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How to Remove the Lock Module from a Mercedes-Benz B-Class

Model: Mercedes Classe B MK 2, W246 - Years: 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019
Part: Door lock

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Video tutorial

Below are the instructions to remove and replace the lock on a Mercedes-Benz B-Class. First, open the front door of the vehicle and start by removing the door panel, unscrewing all the fixing screws found on the sides of the panel; finally, disconnect the electrical connector as shown in the video.

Now unscrew the screws of the lock module, disconnecting the electrical connector to remove it and replace it with the new one; then reassemble the new module, making the connection and finally checking its operation!


Updated on 28 August 2026 by ScegliAuto


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by ScegliAuto

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