I have a 09 CC 4mo 6 cylinder. Was in an accident and some of the left front suspension was replaced. Car now slows to a crawl and Brake/ABS lights come on and beep. It resumes normal speed and repeats stalling. warning light for power steering is on as well and flashes intermittently. Dealer says there are numerous codes 5 pages of them. Says also that the main problem seems to be from faults in steering module, and brake system. However mechanic says that he cannot find any common denominator between the 2 systems and faults. I have paid for 3 hours of diagnosis so far. Any ideas? (new to this site, hope i'm posting in the correct area)