Hi Folks, Wonder if you can help me. I have a 99 Audi A6 Quattro. When accelerating, the car takes off wonderfully until it hits second gear. At that point is kind of sits down a little,like it's starving for something. Otherwise the car runs terrific in all other gears. Could this be a MAF sensor? I have taken very good care of the car. The Timing belt was replaced at 80K even though it didn't need it. I'm a bit puzzled by this.