On certain passenger vehicles, due to a software error, a desynchronization of the Valvetronic motors for engine banks I and II may occur. If this occurs, it would cause a rough-running engine. If this happens, the check engine light will illuminate, and the message "engine malfunction, drive with moderation" will appear in the vehicle's instrument cluster message display area.

In some cases, the engine could stall. In those cases, the driver may not be able to restart the engine. Depending on the level of engine roughness, or stalling, as well as traffic conditions and the driver's reactions, this could lead to a crash.

Dealers will reprogram the Digital Engine Management control unit. Owner notification began July 8, 2003. Owners should contact BMW at 1-800-831-1117.