Can anyone explain how the service indicator works on a mk5 Gti?
I changed the oil myself a few months back.
Today the light came on saying service now, so I am presuming its coming up because it was a year after it was reset.
Or is it more clever than that, can it detect the quality of the oil or anything else?
Mine is set to a time distance but I seem to remember another car I had on long life could say it needed a service anywhere between 16-22k miles based on how hard it was driven.