The Genuine BMW Cover Base B+ (2 Pol) - 61138385158 is a cover base used in BMW vehicles. It is designed to protect the base of the vehicle's electrical system, specifically the B+ terminal. This cover base is made of high-quality materials and is an authentic BMW product. It is compatible with 2-pole systems and has a part number of 61138385158. This cover base is an essential component for ensuring the proper functioning and safety of the vehicle's electrical system.