On certain passenger vehicles, under certain environmental conditions, a vapor lock in the fuel pump could occur causing the engine to stall. If this were to happen, the engine would not be able to be restarted for approximately 15 to 20 minutes.
Dealers will install a resistor in the electrical line powering the fuel pump in order to prevent an occurrence of vapor lock. The recall began May 11, 2004. Owners should contact BMW at 1-800-831-1117.