My 2003 C240 has 165k miles on it, poorly maintained. Should I keep it?

The Mercedes C240 is a great car if properly maintained. But when neglected, can be very expensive to repair and service. If the car has not had proper maintenance done on schedule and you are experiencing the above mentioned problems; its most likely time to get rid of the car. I would need to diagnose and know exactly what is wrong with the car to properly answer it, but sounds like you might be better off with an economy car monthly payment instead of a steady stream of expensive repairs to the mercedes. Hope that this helps. ACA Automotive