The roof problems with this car are such a shame. I sold mine earlier this summer after nearly 3 years of fighting with it I had just had enough, I've tried almost everything that is listed on the forums at one time or another and still had problems with it.
Even when the roof worked fine it would still just display a constant error when the roof was open to say the cycle wasn't complete, even though the deck was locked down and everything was perfect.
I realised while driving it in beautiful sunshine in June that I actually didn't want to put the roof down just in case it went wrong, I had just completely lost confidence in it, so I decided it just had to go.
Big thanks to everyone on the forum who has provided advice and shared in the pain, and good luck to those who continue to persevere with it!