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How to Reset the B5 Service in the Mercedes C-Class?

Model: Mercedes Classe C W205 - Years 2014-2021
Part: Warning light – error code

In this tutorial, you will see how to reset the B5 service in the Mercedes C-Class, a very simple and quick operation. Before proceeding, make sure to complete all required tasks. Start by inserting the key and turning it to the first position. Then, press and hold the call button, and a fraction of a second later, press and hold the "OK" button as well. At this point, in the menu that just appeared, enter "ASSYST PLUS", select "Full Service", and finally perform the reset by confirming the option "Conf. Full. Serv." You can verify that the procedure was successful by restarting the ignition.

Updated on 14 May 2026 by ScegliAuto

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How to Open a Stuck Boot on the Peugeot 407?

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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