Hi. The drivers window on my 2002 s-type is playing up. I press the button to wind the window down and at about the halfway mark it starts back up again.
When the window is down the same problem happens on the way up.
Also the window runs really slowly. Any help greatly appreciated. Regards
John

 

Not sure about the jag, but had an omega with same problem, it was a safety feature in case something was caught in the windows, I fixed it by removing door panel and cleaning the runners/guides that the windows sits in I also oiled the mechanism.