Problem Phaeton V10

Hello together am new here and need your advice: I bought a V10 with 72 000km/jg 2004 about 6 months ago and was very satisfied at the beginning. But after three months ( 8000km, half davo highway) started: – both turbos have said goodbye (were both replaced on warranty) – vibrations at the front left about from 80km/h upwards is getting worse and worse than 140 are not conceivable when braking even the brake pedal vibrates massively, it beats right. Had it four weeks in the garage conclusion: – Turbos until now i.o – vibrations still available – when I wanted to turn on the ventilation on the highway last week, it has fogged me the whole car inside at 120km/h and saw nothing anymore, funny this week did not happen any more, for that the discs are smashed after having turned it off, and two/three hours later I get back in the car I don’t see through here anymore, has someone already made such experiences? Would it be over a few useful tips really happy greetings