Fitting not included. Tow bar is released electrically from the initial position after pressing a button and needs to be locked manually in the final position, applies both to placing the ball neck in towing position and to folding the ball neck behind the bumper. D-Value (tow bar): 12,7 KN; Vertical load (vehicle): 100 kg. Tow bar harness is required for installation. Heat insulator is only required for installation for PHEV and gasoline vehicles, this is not required for Diesel. Please refer to the vehicle owner's manual for vehicle specific maximum capacities.