Hello I bought a 2002 C240 for my daughter last year and I recently changed out the CPS and the fuel pumps within the last 3 months. The car is still not running and will not start the car smells of gas fumes and loses power or just shuts off completely. What could be the problem? I took the car back to the mechanic who replaced the pumps and he said that it was the SAM I am not convinced because this guy has burned me twice already with the pumps not being done correctly. I am so upset about it that I could scream. Any suggestions?