tottaly diffrent car, but when we first go our c200k, the car seemed to run ok, but whenever we got to a hill or somethin it was like tryin to pull 1000kg with 3hp.... so we got it checked out n the computer ended up havin 25 errors
got it back n the car ran muched better, but it still felt kinda powerless, after a few hrs the engine warning lamp came up agian, so we had to get it checked out agian n this time they keept it for more than a few hrs n had a good look n found more computer errors n a hole in the super charger piping, took 6 days to fix.
so u never know just get ur computer checked out.