Not really an answer - more of an empathy !
I have a 54 plate Megane Privilige hatchback and first the driver's door pushbutton failed and now the rear one has failed as well (2 down, 2 to go). This coupled with the fact that the front passenger window fails to go down/up fills me with dread that on day, the entire car may pack up completely !!
Never buy Renault again, April 2009