New E70 and problems with AC vents

[pkolla]

Hey,
I got 2007 X5 custom ordered 3 weeks ago from Austin,Tx. They took just 2 weeks to deliver the car at the dealer, which is very impressive. I own BMW for the first time. After enjoying for only 3 weeks(500 miles), I have found a problem with the A/C, it does not blow the air from the front vents. I took it to the dealer yesterday and he says that there is a problem with the cables that run to the vents? They were jammed and it is the assembly defect??? Is this a common problem? I have spent so much money and such a poor quality? They are going to take 3 days to fix this problem. The loaner car that I got is from enterprise which is a crapy car ofcourse. Any advices on how to complain this inconvenience to BMW?