How to Synchronize the Windows on a Mercedes

Written by patrick nelson
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How to Synchronize the Windows on a Mercedes
Side windows on a Mercedes can be closed simultaneously. (Joe Raedle/Getty Images News/Getty Images)

Some Mercedes-Benz automobiles come equipped with electronically controlled, convenience closing windows. This feature allows the side windows to be closed simultaneously with the sunroof and some versions of roller sun blinds, at the same time as the vehicle is locked. Problems with these windows on a Mercedes can include the windows becoming unsynchronized, where a side window opens slightly after being manually closed or a side window fails to close automatically. Windows can be resynchronized by following a simple procedure.

Skill level:
Moderately Easy


  1. 1

    Close all of the doors of the Mercedes and turn the SmartKey to the first click in the ignition cylinder.

  2. 2

    Pull on the door window switch that controls the window that either reopened or did not close at all. Pull the switch until the window is closed and then hold the switch for one second. Check that all of the windows are closed properly.

  3. 3

    Pull the switch again if the side window reopens a crack. Hold the switch for one second again after the window closes. Repeat the automatic locking sequence again and verify that all of the windows have closed properly and have not reopened.

Tips and warnings

  • Don't try to force windows to close by pushing on them with the palms of your hands. Pulling and holding a window switch twice will disable the anti-entrapment safety feature and injury could result. Work only with the switches.

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