My 2004 phaeton is eating tires. I am runing Goodyear Eagle F1 All season and they are feathering and have eaten the tred on the inside almost down to the cords whle the outside still has plenty of tred. My VW dealership says the aligment is in spec. I have asked them if they can adjust the Camber but they say it is factory set. The dealership says it is due to Goodyear tires.... The F1 is a unidirectional tire which "may" be a problem. Has anyone elese had similar tire ware issues with their Phaeton?