McLaren 540 passenger window

[twpbugger]

After some advice please.
My McLaren 540 passenger window has randomly started opening itself fully while driving along. I then try and put the window up and once it goes all the way up it goes straight back down. Only way to close the window is to turn engine off and then close window without engine running. (occasionally after 30 seconds of window being closed and engine off the window will then fully reopen.

In addition, sometimes if car is stationary the window will go down and the door slightly opens as well.

Any ideas? Battery is full so it's not related to that.

Thanks and merry Christmas everyone.

Kev

[davek_964]

Door switch probably. A fairly common failure point on McLaren's.

[BobM]

As Dave says, likely water ingress in door switch. Does the 540 have the same touch sensitive switch just behind the door under the little cover on top of the rear quarter panel as the 570/600? If so you can sometimes persuade recalcitrant windows to close using this.