Can anyone recommend any internet resources for BMW Autos comparable to this
Vanagon list -- a mail list, Bulletin Board, whatever? I'm amazed at the
range and depth of good advice that is served up daily on this Vanagon list
and hope I can find it for BMWs.

WHY?:
I recently bought my wife a used Ultimate Driving Machine (93' 525i touring)
with low miles. In the past 2 months electrical gremlins have struck --
sunroof not functioning, rear window lock/opener not functioning, spurious
"coolant level low" dashboard messages. None of the obvious causes (fuses,
bad switches, bad/loose connections) appear to be at fault. A look at the
Bentley manual diagrams and exploring the wiring reveal an electrical system
closer to the Space Shuttle than the '83 Vanagon that I drive (and
maintain). Before I take it dig any deeper (or take the car to
professionals, $$$) I thought I'd see if advice is available in Cyberspace.

Or maybe I should just sell it and buy her 4 used Vanagons.