I am looking at a 2004 diesel TDI Wagon. I have read info on this site and asked the owner some questions. He says no prob with pump, has not changed timing belt, or most of what has been listed. He has maintained with oilchanges and had the brakes done recently. Says there have been no problems. They have had it for 2 years, and now are choosing to drive a minivan instead..That puzzles me considering I am mom of 3 going from minivan to fuel economy. Should I be hesitant? How should I proceed??