I googled BMW forums and found dozens of them. I want to know which one is the best to frequent.

^{_D.D._[an Englishman living near Ingolstadt, Germany]_}
My Car History | My A6 0-155mph/Autobahn on Youtube
Sold my 2004 A6 Avant 2.7 Turbo Quattro on the 2nd October 2008.
Replaced it with:
E60 545i, Auto, Black, 29,000 miles, Electric+Memory Heated+Ventilated Black Leather Comfort Seats, Xenon,
Park, HiFi Prof, Navi Prof, Voice Command, Debadged, Sunroof, Cruise, Walnut, Servotronic, Dynamic Drive,
El. Folding/Heated/Dimming Mirrors, Rain Sensor, Curving Lights, Summer: 18" Type 123. Winter: 17" Type 138.