BEWARE COLLEGE CAR COMPANY COLUMBUS. I recently purchased a 2003 Audi A4 Quattro for my daughter to take to school. I was told the vehicle was put through an extensive safety inspection and there were no mechanical issues. About a week later I took the car to my local Audi dealer for a fresh oil change and found out the engine was "sludged" and would cost $4700.00 to replace. The oil pressure was just high enough to make the oil light stay off. The Audi technician told me this is NOT something they would not have known about. Even the... read full review »