The Mégane II Owners' Club

I have a 2003 1.5dci Megane, when I bought it the passenger side windows did not open. After a couple of weeks the rear passenger window started to respond, albeit by going down and up one inch at a time. Anyway that is no longer working againn haha.

My drivers window started to only work inch by inch recently but after resetting the windows it works fine again, but the passenger windows still won't work

I suspect a relay or regulator but can't be sure. How would I tell for sure?

Thanks in advance

Do a search for windows, this issue has been mentioned plenty of times