2011 135 convertible AC & roof issues

I have a 2011 135 convertible with under 12,000 miles. Recently, the AC evaporator had to be replaced, which resulted in the car basically being dismantled. The car came back with a roof noise when it is going up or down and now I am waiting for delivery of a brand new roof (I am suspicious the dealer is responsible for what happened to the roof, but it is all under warranty so there is no point in arguing). Anyone else experience similar issues? Overall, I love the car and just hope it isn't becoming problematic.

I have a 2011 135i convertible, 6 sp. manual with the M sport package and the performance power pack and have not had any mechanical issues to date. I have just over 10,000 mile on my car. The only issue so far is the fact I need to replace the rear tires very soon.

Thanks - I have the 7 speed trasmission also with the M sport package and yes, you will need tires soon. I just had new rear ones installed. Until now, the car has been perfect and I am hoping what is going on is a fluke.