Just got this fault myself but system status is ok on the computer read out. Phoned VW and they said to leave until service which is due next month unless the car starts to run badly.splodge said:just an update (oops just remembered)
turns out it was a Temparature Sensor somewhere in the engine ??
getting it fixed on Warranty in a couple of weeks.
the light has actually gone off now, but the sensor apparently still needs replacing.