New owner of a 2011 Golf TDI, great fuel mileage. I'm in a quandary about the clock (time setting). The expectation is the navigation system would use satellite time, not the manual entry time from the user. The service manager at Pete Moore advised me and I quote; "The VW navigation system works off of a two satellite system signal". Amazing that a highly engineered GPS system would use outdated technology and use the 2-D Trilateration (satellite triangulation) vs. the standard 3-D system. Rather than spending $500 on the Nav option I could have got better accuracy using a $84 Tom Tom unit from Wal-Mart. Does anyone know of a software update or is the SM BS....ing me?