Windows keep dropping ?

[aheadlam-2012]

My windows keep dropping when I get out the car as they should but when I shut the door and lock the car the windows don't go back up that inch or so they should ?

What causes this, and is it an easy fix ?

 

[fatboydel]

My CLK used to do this and it turned out to be the interior light switch in the door pillar, when you close the door it triggers the window up.

I just used to give them a wiggle around and they would work OK again.

 

[aheadlam-2012]

It's the back windows not the front ?