I have just aquired my Toureg but barely a week's cruesing this warning light(exhaust system faulty) is showing on my dish Board. Is this a serious problem and if so how much may it cost me or how can i fix it easily.
If you have dpf the filter might need cleaning.
To do this,select Sport mode and drive at at least 2000rpm at, at least, 40mph for 15 or so minutes.
If the dpf is clogged this will burn the particles off and light will go off.