Sounds like the clips on the window regulator, all too common on Renaults I'm afraid. Take the door card off and you may be ble to wedge it in place
If it is the dealer will charge you for a complete unit if it's not under warranty. Although I have heard if them replacing them after the warranty is out as a good will gesture
Last edited by Pat.w; 8th December 2008 at 06:51 PM.