Admittedly I purchased new wheels, tires and exhaust for my car last year, but I spent just over $11,500.00 maintaining my c280. It seems that everything that could possibly go wrong or wear out, did. Head gasket, water pump, alternator, brakes, ignition trouble, etc, etc. I still haven't corrected the MIL lamp problem completely. That's going to be another grand or so, as it's the diagnostic module that's gone. It won't communicate with the OBDII connector. My exhaust was shot, so that's why I replaced it, and my wheels are knockoffs. An impressive piece of cash for a year. Good thing most of it is tax deductable and I am in a 50+% marginal tax bracket.