Has anyone ever heard of the rear wiper motor breaking the back glass on a Mercedes c240, the year 2004? My back glass has broken twice now and I suspect the rear wiper motor. Has this ever happened to anyone else? 


This is actually, highly unlikely. Firstly, the rear glass window is very strong and cannot be broken very easily.

Secondly, the to-and-fro motion of the wiper, cannot really 'Hit' the window.

There is something else going on here to be honest.

Carol Anderson, 2019-05-13

I bought a used wiper motor, a few swishes of the wiper and the glass popped. I replaced the glass. The technician said the motor was installed improperly and he readjusted it. A few swishes of the motor and wiper broke the glass a second time. I took the car to a glass repair place and he looked at the motor. He said it was not turning out of place or bent. What could possibly be breaking my glass? Everyone says the motor/wiper can't be the problem, but what is??

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