Re: chip/engine light (GTI DRIVER V)
There are certain things that will make the MIL light come on, that if you remedy, i.e. gas cap not on, then it will go away after starting the engine 3 different times.
If the problem is not something simple like that, it won't go away until the code is reset. But it will come back again if the problem doesn't get fixed before the reset.
It's amazing how many codes there are in a VW. Around 500.
You should definitely get it checked at the dealer before you chip it.
I've heard it is also possible to erase your chip settings at the dealer when they "flash" it to reset any tripped codes.
That would suck.