What series is Mercedes-Benz CGI?
2 Answers
CGI technology is a new engine technology that primarily includes direct fuel injection and turbocharging technologies. Below is relevant information: Direct Fuel Injection: Direct fuel injection completely separates the fuel supply process from the intake valve and piston system, giving the ECU greater control. This enables ultra-lean combustion beyond traditional injection theories and more diverse air-fuel ratios. During steady driving or low-load conditions, engines with direct fuel injection can enter Ultralean mode. Direct fuel injection (GDI) is a technology that injects fuel directly into the cylinder to mix with the intake air. Its advantages include lower fuel consumption, higher power output per liter, and a compression ratio of up to 12. Compared to conventional engines of the same displacement, power and torque are increased by 10%. Its drawbacks are the complexity of components and generally higher costs. Benefits of this system: In this setup, the engine only draws in air during the intake stroke, while the fuel injector supplies fuel during the compression stroke to achieve fuel savings. According to actual tests, it can achieve an air-fuel ratio as high as 1:65. In addition to impressive fuel efficiency, the overall power curve remains exceptionally smooth.
As an automotive enthusiast, I need to clarify that Mercedes-Benz CGI is not an independent series name, but rather refers to an engine technology, fully named Charged Gasoline Injection, which is a turbocharged direct injection system. This technology is used in multiple Mercedes-Benz series, such as the C200 CGI in the C-Class or the E250 CGI in the E-Class. I've researched many older Mercedes models, and CGI engines were quite popular between approximately 2005 and 2015, offering good power and fuel efficiency, but require special attention to injector cleaning during maintenance as they are prone to carbon buildup. Nowadays, newer models have switched to the more advanced M-series engines, making CGI technology quite rare. If you come across a used car with the CGI badge in the market, it indicates that specific engine version, not a separate vehicle category. In short, understanding technical details can help you make wiser car choices.
