On certain vehicles, a check valve in the brake vacuum pump may leak a small amount of lubricating oil. Over time, this could result in contamination of the brake booster. Loss of brake power assist could occur which, in conjunction with traffic, road conditions, and driver's reactions, could increase the risk of a crash causing property damage and/or personal injury. Correction: Dealers will inspect and, if necessary, replace the brake booster and master cylinder. Additionally, the brake vacuum line (including the check valve) will be replaced to eliminate the possibility of oil reaching the brake booster.
On certain vehicles equipped with heated seats, excessive contact with the seat backrest side bolster upon entering and exiting the vehicle may damage the heating mat located in this area. If this happened, the seated occupant may experience excessive heat in this location. The heating mat could damage, or melt a small hole in the lower portion of the backrest's outboard side bolster. If this were to occur, an electrical/melting smell or small amount of smoke would be noticeable. In some cases, the small hole in the backrest's side bolster could damage the seated occupant's clothing. In rare instances, this could lead to a minor or superficial skin injury. Correction: Dealers will modify the seat heating circuit for the front seat backrests.
On certain 745I, 745LI and 760LI vehicles, insufficient torque may have been applied to the engine oil filter drain plug which could lead to a loosening of the plug causing an initial oil spray and a subsequent oil leak. If this happens, the oil pressure warning light will illuminate, and the message "Engine oil pressure! Stop carefully" will appear in the vehicle's instrument cluster message display area. If a large amount of oil loss occurs, engine damage may result. Correction: Dealer will retorque the engine oil filter drain plug.
On certain 745I and 745LI vehicles, due to a software error in the digital engine management control unit, a desynchronization of the valvetronic motors for engine banks 1 and 2 may occur causing 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 certain extreme cases, the engine could stall and the driver may not be able to restart it. Correction: Dealer will reprogram the digital engine management control unit.