Gas Recirculation Valve (egr Valve) problems of the 2002 Volkswagen Beetle

Consumer states he get very poor gas mileage and his auto smokes when he starts it up and also smiles while he is driving it. He sates also his auto runs very rough. Consumer states he took his auto to a dealer and he was told that he has a clogged manifold and a clogged egr valve. He also states that Volkswagen knows about this and won't do anything about it. He says they won't admit there is a problem with these cars. Ts.