Thats not good. The most common fault seems to be the roof sections getting out of synch, if its the compartment catch it could be tricky to get to. One further tip at the moment, before you commit to a dealer check they have experience with the roof, mine didnt, started to throw parts at it, took six months and still didnt sort it properly. If the fault light is picking up on the issue they should be able to get a read out of the fault. Also worth asking Alex nicely, he has a lot of experience with the hoods and was kind enough to give me some good advice.