I've had no mayor problems with the car, the biggest job was a transmission service @ 177,000 miles. The car has around 245,000 miles and it runs like new. It smogs fine and it does about 24 MPG. I dive it every day and about once a month i drive to LA from northern californa (about 300 miles) and it feels great. It has some minor issues like a stereo volume knob that is worn due to normal use and like any W210 the original head gasket leaks around the front of the engine (cyl 1) which didn't cause any problems other than the leak itself which if you had warranty it's fine if not its around 150usd for the gasket set.
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