MWM History

Future needs Tradition.

MWM can look back on a tradition 150 years old, always guided by a mindset of innovation. By founding the “Mechanische Werkstätte” in Mannheim in 1871, the automotive pioneer Carl Benz ushered in the era of natural gas engines. The enthusiasm and innovative drive of engineers from more than a dozen decades have continued to yield new developments and contributed to MWM's becoming what it is today, one of the leading and most renowned brands in the field of gas engines and gensets. MWM thus continued to improve the output rating, efficiency and reliability of its systems, distributed from Mannheim throughout the globe today.

Carl Benz, Firmengründer von MWM

Carl Benz, founder of the company

The MWM brand looks back on a tradition of 150 years full of innovation.

  • 1871
    Automobile inventor Carl Benz founds his "Mechanical Workshop" in Mannheim, thereby laying the basis for Benz&Cie., which later becomes MWM.
  • 1879
    Successful continuous operation of the inventor's first two-stroke gas engine
  • 1883 Serial production of the two-stroke gas engines
  • 1886
    The motorized car patented under DRP no. 37435 is built at the new site in Mannheim-Neckarstadt.
  • 1910
    Production launch of two-stroke diesel engines for submarines
  • 1911 The new diesel procedure without compressor is patented under DRP no. 230517 and in 1919 under DRP no. 397142. The pioneer patents enable the construction of small, fast-running diesel engines.
  • 1922
    Benz&Cie. sells the "Stationary Engines" division, which continues to operate under the new name "Motoren-Werke Mannheim A.-G." (called Old Benz or MWM)
  • 1926
    Knorr-Bremse in Berlin and Südbremse in Munich acquire the shares of MWM. 
Henceforth, MWM is a subsidiary of Südbremse, Munich.
  • 1932
    Development of small diesel engines (KD15 E und KD15 Z) for industrial and agricultural applications.
  • 1938
    First medium-speed diesel engine with turbo charging (TRH134S) and 1,400 hp at 600 rpm
  • 1943-1945
    Up to 70 percent of the factories destroyed, production moved out to various locations
  • 1946
    First new design of an RH engine (RH348) and production launch of small diesel engines for tractors
  • 1953
    First production of small air-cooled diesel engines with patented MWM equal-pressure pre-chamber method
  • 1954
    100,000 small diesel engines built since 1946 and supplied to numerous tractor and construction machinery manufacturers
  • 1972
    MWM celebrates its 50th anniversary.
  • 1979
    MWM celebrates "100 Years of Engine Building in Mannheim".
  • 1985
    Deutz AG, Cologne, acquires the majority of the shares of MWM in Mannheim and Südbremse in Munich.
  • 1989-1991
    MWM takes over the large engine production of Deutz AG (528/628 and 540/640 series) in Mannheim.
  • 1992
    MWM receives an order for the design and production of prototypes of an electronically controlled 6,000-hp locomotive engine. This engine is the forerunner of the current TCG 2032 gas engines.
  • 1995
    MWM's small diesel engine production is discontinued, and the production facilities are sold to China.
  • 1999
    MWM is sold to Deutz AG for DM 34.3 million. The operational business for the engine division passes to Deutz AG.
  • 2005
    Deutz AG founds the independent subsidiary Deutz Power Systems.
  • 2007-2008
    Sale to the financial investor 3i and re-branding to MWM GmbH
  • 2011-2013
    MWM GmbH becomes part of Caterpillar Inc., MWM GmbH becomes Caterpillar Energy Solutions GmbH.
  • 2018-2019
    Presentation of TCG 3016 and 3020 V20, which were designed from scratch
  • 2021
    Presentation of the digital monitoring system MWM Remote Asset Monitoring (RAM) for location-independent and transparent monitoring of CHP plants in real time.
    MWM celebrates its 150th anniversary – 150 years of continuous innovation.

Contact Corporate

Caterpillar Energy Solutions GmbH
Carl-Benz-Strasse 1
68167 Mannheim
T +49 6 21/3 84 - 0
F +49 6 21/3 84 - 88 00
E A00BAa3A-B95Bc4A9dA9bAa1A9aAd1AaaA5bA68A65AdA0adB62Bc8Aaa

150 years MWM - 150 years of continuous innovation