I watched the video, and honestly, I expected much worse.
It seems to be that the best solution is to insist upon a replacement vehicle from the dealership. I don't get this lawyer-up bit.
2014 535d, M Sport, Space Gray/Mocha Nappa
2007 530i, White/Black, 6MT
2001 530i, Orient Blue/Beige, 5MT
1994 325is, White/Black 5MT
1984 325e, White/Black 5MT
1983 318i, Delphin/Beige 4MT