Mines does that all the time only drivers side though!
No major prob as I just hit the button again till it goes up.
On the 4 window opening I had he SLK for 2 years before I found out 2 quick pulls on the roof button put them down(coupe mode or something)
Same happens with the E89 pull and hold big button behind windo buttons and all 4 go down
No major prob as I just hit the button again till it goes up.
On the 4 window opening I had he SLK for 2 years before I found out 2 quick pulls on the roof button put them down(coupe mode or something)

Same happens with the E89 pull and hold big button behind windo buttons and all 4 go down
