I bought (paid cash) a used 1994 C280 Mercedes and was told by the Mercedes dealership that the car was in perfect condition. I checked with Carfax and nothing was reported. I had bought two other cars from this same dealership and had build a good relationship with them (I thought). After a few weeks of owning the vehicle everything started going wrong namely the engine. I asked Mercedes to please stand behind their vehicle and they flatly refused. I then hired an attorney and the dealership threatened me so I backed off. I then hired a Mercedes mechanic to repair the car which cost me around $2,500.00. Within a little over a year the head gasket has an oil lead and the mechanic will not stand behind his work. So, the car sits and is undrivable. I am so angry and frustrated. What can I do?