I recently bought a car (manufactured year 2006) From private owner week ago with the RWC and car looked fine at first. But after week radiator started leaking, when I showed it to mechanic he said radiator is blown and it's old radiator painted over where seller says radiator is recently replaced with new one. And now there are so much black greasy thing below the engine part. I have spend my 1year saving in it. Do I have any leagel action that I can take???