Sorry about the late reply. I was driving home.
I always perform the adaptation on new throttle bodies. As long as it is the correct one for the engine, it should be ok.
Don't buy any parts until they are confirmed to be bad!
I can only guess over the internet. If your mechanic is not familiar with VWs, check with a VW Specialty shop in your area.
Thursday, November 15th, 2012 AT 2:35 AM