Design and Mechanics of the Four-Cylinder Engines with 2.0 and 2.2 Litres Displacement 932926
The objective was to develop a modem engine to succeed the M 102; 2.6 million of these units were made between 1979 and today making it the most successful Mercedes-Benz four-cylinder petrol engine to date. The new M 111 coordinated production set-up together with the familiar M 104 six-cylinder four-valve engines and the 600 diesel series.
Emphasis has been deliberately given to improved torque rather than very high volumetric efficiency. This has made it possible to apply four-valve technology, which was originally only to be found in motor racing, in such a way that ordinary customers can benefit form advantages such as high torque and raised power output, as well as reduced fuel consumption and emissions. Extensive noise-reducing measures in the engine ensure that, despite the higher power output and lower engine weight, noise levels have also been improved.
Citation: Kollmann, K., Abthoff, J., Hüttebräucker, D., and Fick, W., "Design and Mechanics of the Four-Cylinder Engines with 2.0 and 2.2 Litres Displacement," SAE Technical Paper 932926, 1993, https://doi.org/10.4271/932926. Download Citation
Karl Kollmann, Jörg Abthoff, Dag Hüttebräucker, Wolfgang Fick