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What are the advantages of using the third-generation OM471 engine of Daimler Trucks on domestically produced Mercedes Benz Actros?


In October of this year, Daimler Trucks upgraded the OM471 series diesel engine again, which is also the third generation product launched in a decade since the engine was launched on the market in 2011. According to Daimler Trucks, the new diesel engine can achieve up to 4% fuel savings.

The third generation OM471 engine is of utmost importance in improving combustion efficiency. For example, by significantly optimizing the geometry of the piston groove, fuel injector design, and cylinder head parameters involved in air exchange, the compression ratio of this inline six cylinder engine was increased from 18.3:1 to 20.3:1, and the peak ignition pressure was increased to 250 bar, achieving higher combustion efficiency.

One of the most important means to improve fuel efficiency in modern diesel engine technology is to optimize turbocharging. The third-generation OM471 engine not only retains the asymmetric turbocharger used in the second generation, but also adds a Top Torque automatic torque increase system, which can add an additional 200 Nm of torque when the vehicle needs it. Taking one of the 480 horsepower engines equipped on the domestically produced Mercedes Benz Actros as an example, the standard torque is 2300 Nm (800-1500r/min). In standard mode and power mode, the torque will increase to 2500 Nm through the Top Torque automatic torque increase system, reaching the torque level of a 510 horsepower engine. While achieving higher climbing performance, it can also bring better fuel efficiency when driving on flat roads.

In addition to combustion efficiency and turbocharging technology, reducing friction is the third important means to improve fuel efficiency. For this reason, the third-generation OM 471 has developed a brand new engine oil pressure control valve, which always keeps the oil pressure at its optimal state. At the same time, the system also monitors the status of all engine components and their specific requirements, such as lubrication or cooling, to ensure that the engine is in a safe working state.

SYHOWER is one of leading suppliers in China, specializing in the production of Mercedes Benz engine, Mercedes Benz chassis, SCANIA engine, etc. We have been engaged in the European truck parts industry since 2000 and have a history of more than 20 years. With the continuous growth of the company, it has won the recognition of domestic and foreign customers with excellent professional skills and strong technical strength. The business scope of Shenzhen Xinhaowei Industry and Trade Development Co., Ltd. is international import and export trade, domestic material supply and marketing. Mainly engaged in imported parts of European trucks (commercial vehicles), heavy-duty special vehicles, and buses. It is the exclusive agent and designated distributor of many well-known parts manufacturers in China. At present, it has developed into a major supplier of European auto parts in China. The parts we distribute mainly include the following models: MAN, NEOPLAN, BENZ, VOLVO, KASSBOHRER, BOVA, SCANIA and other auto parts and OEM parts. Since the establishment of our company, every step of development has followed the first-class business philosophy, and treated customers with a professional and serious attitude. The company has always been committed to the pursuit of high-quality, low-price products. We have an absolute product price advantage and perfect service quality, in order to achieve perfection. We support MOQ. We are willing to let customers know us first, grow together, and win-win cooperation!

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