BorgWarner Turbo Systems

Regulated 3-turbocharger System (R3S)

First launched on 2012 M Series X6, X5 and 550 sedan, BorgWarner's Regulated 3-turbocharger System ("R3S") helps BMW set new Diesel performance and fuel economy benchmarks with the highest output per liter in a production Diesel vehicle. (280 kW/381 HP and 740 Nm/546 lb-ft torque) Beyond simply adding an additional turbo, BorgWarner worked with BMW to develop a new sealing approach to minimize the parasitic pumping loses and intake fouling that were key obstacles to serial/parallel turbo applications.