The dealer SA just confirmed my M3 engine failure was due to a VANOS mechanical failure. He started rattling off the laudry list of replacement parts but basically they are basically rebuilding the top half of the engine. They estimate it will be another 2 weeks before repairs are complete.
2007 X3: Crimson / Beige & Black / Gray Wood - Auto - Premium Package
Heated Seats - Heated Steering Wheel - Clear Paint Protection - 35% Llumastar Tint