Like you all I have a temperamental pluriel roof, its recently stopped opening and the boot wouldnt open.
Rang the French Diagnostic Company, they said check the wiring loom on drivers side! Could be a broken or bent wire? Hubby spent a couple of hours on the hottest day looking at all the wires. Nothing looked wrong there! After spending so many hours looking for a fault on a previous days I told him to put it back together!! Who needs a working boot right? Once all back together it worked...
Apart from roof problems mines a lovely car to drive, being a 1.4 Diesel!