XSeries-forum

Has anyone had this issue - my rear wiper motor appears to be sluggish - really slow across the rear screen often stopping at the halfway mark. I took the wiper arm off and cleared out all the crap etc and cleaned the glass with polish (to reduce surface tension). It helped a bit but it is not great.

Anyone had this problem - I assume the wiper motor is on the way out but anted to check and see if it was something simple before doing that?

Smee

As youve said motor on its way out.

Motors either work or don't, I would think it's something like a partially seized drive shaft from the motor to the actual wiper arm itself.
Strip down as much as you can and give it a good clean, lubricate and re-assemble.
Might be just as bad, but at least it's cost you jack shit to try.

Nah. Same happened to mine a few years ago. I did all the cleaning etc to no avail so in the end I just swapped the motor.