My 18 years old 560SEL is still running like new except the worn look of the dark blue leather. The air con is still harmful to ozone but still cold and the heated seats still heat. Pretty much bulletproof except the normal wear and tear. And the 8 years old S500 coupe is still running fine and everything is still looking nearly new except the darn phone needed to be replaced! I am not sure I would get another Mercedes unless the quality issues are taken care of.