Hi, I have a C5 2004 and it has the split tailgate, every time I close any door the glass part of the tailgate unlocks and sits ajar, I have looked at the locking mechanism and it looks fine, no worn parts firmly locked, but as soon as any door is closed it opens.
At first I thought it might be a bad connection but if I manage to get in the car without it opening I can drive it with no problems until I get out and close the door.
anyone have any ideas.
Craig