Mercedes-Benz M118 engine


The M118 is a four-stroke inline-four engine produced from 1965 to 1972.

Design

The M118 was originally developed by Mercedes-Benz for the mass-produced vehicle segment. It was first used by Audi in the F103, after Daimler AG sold the company to Volkswagen. The engine replaces the previous two-stroke engines, and features a water-cooled Solex carburetor that allowed for smoother operation and enhanced efficiency. It was later revised several times with increased displacements and reduced compression ratios for improved reliability. The success of the M118 allowed Audi to expand into more upscale market segments.

Engines

M118

40 kW version
53 kW version
55 kW version
59 kW version
66 kW version