Diesel 4-cylinder engines: E220D, E200CDI and E220CDI (Mercedes-Benz E-Class W210)

Even the smallest model of the new generation of Mercedes diesel engines – the 2.2-liter 4-cylinder E 220 D, released in 1993 and designated OM 604 on the domestic market – is an achievement of modern engine engineering in terms of its characteristics. German manufacturers were the first to begin serial production of a 4-valve prechamber cylinder head for a diesel engine. The valves, arranged almost vertically, are driven by two camshafts located above. The exhaust camshaft, which is connected to the crankshaft by a chain drives the intake camshaft via a gear. A suction system with relatively long separate pipes serves to achieve good torque. In addition, for the first time in a diesel engine, a system similar to the electronically controlled fuel injection system of a gasoline engine (the OM 604 diesel engine has a system with a distributor fuel pump) and CAN buses (CAN - Controller Area Network - a switched data bus) were used. The CAN bus makes it possible to implement interaction between the engine group and electronically controlled vehicle units, such as the ASR system, by changing the output data (traction control), anti-lock braking system ABS, automatic transmission and readiness control system.

If you compare the performance characteristics of the 4-cylinder diesel with the W 115 (/8) engine from the 1960s and 1970s, you will see a huge difference. While the previous 220 D had an output of 44 kW/60 hp at an engine speed of 4,200 min⁻¹, the new engine with the same cylinder capacity has 70 kW/95 hp at 5,000 min⁻¹.



The E 200 CDI and E 220 CDI models, with outputs of 75 kW/102 hp and 93 kW/125 hp respectively, replaced the 4-cylinder diesel engine with pre-chamber operation since June 1998.

Since June 1999, the E 200 CDI and 220 CDI models have been modified, their power has increased significantly: up to 85 kW/116 hp for the E 200 CDI and up to 105 kW/143 hp for the 220 CDI.

Text republished from the website (www.mercedesman.ru)