Slow windows

[DAD190E1990]

Hi
Me and my 190E have a small fault.
i seem to have joined the the slow window club and i would like to know why. My daughter has slammed the door a few times, really quite hard and i only really noticed it after that. Anyone know why the window would still work but go upwards slowly - down is ok but you may think it might not make it back up again. The others are fine but my passenger window seems to be bad. Is this likely to be a big expensive part?
Any help or previous experience would be most appreciated.
Thanks, as ever

 

[tom7035]

The rear window channel may need re-aligning (means removing the door card of course), but try running some silicone lubricant or somesuch down both front and rear channels, see if it helps.

 

[DAD190E1990]

Sussed it.

Fantastic - it's nothing serious. Sticky window rubbers, that's all. I will go buy some GT85 tomorrow and see about some new ones next year. Thanks for the advice Tom.