BMW · Canada · High
BMW 3 Series: Powertrain
Affects BMW 3 Series · 2008–2009 — about 133 vehicles.
The hazard
On certain M3 vehicles equipped with the multistage downshifting of the double clutch gearbox, during some cases involving rapid vehicle deceleration, the transmission software may perform a multistage downshift. In this situation the clutch is open for a approximately 200msec. When this occurs, positive gear engagement is interrupted. In conjunction with the engine's over run fuel cut-off at low speed, there is a possibility for the engine to stall. Loss of propulsion, in conjunction with traffic and road conditions, and the driver's reactions, could increase the risk of a crash. Correction: Dealers will re-program the Engine Electronic Control Module.
What to do
Contact your dealer; the remedy details were not included in the filing.