Hi. I have a 2008 C5 2.2 Exclusive Tourer with an electric tailgate that has developed a fault, it fails to close fully and returns to the intermediate position as if there has been an obstruction. If I open any door or window it will close and lock properly. The dealer has replaced the tailgate lock and catch assembly with no success the fault persists. The diagnostic readout shows no fault. If anyone has any knowledge or advise on how to remedy this problem your information would be very welcome, Peterg
