Volkswagen Passat TDI Discussion
I got a 2014 Passat TDi and a 200 miles to no start error started on the MFI. Had a DEF fluid error. The tank was full but I got a DEF error. Took the car to the dealer and the first thing they did was replace the NOX sensor. $778
There error was still there.
Now they say it is a 2 piece supply...