Voluntary Emissions Recall Campaign 13E-A01: Program Control Units (Tank Ventilation). Due to an error in the DME (Digital Motor Electronics) software, the fuel tank ventilation system does not function correctly to purge the active carbon canister of accumulated fuel vapor. As a result, this may lead to a fuel smell around the vehicle, especially in areas with high ambient temperatures. In order to remedy the situation, BMW is conducting a Voluntary Emissions Recall Campaign to reprogram the control units (DMEs) on all affected vehicles.