Engine

BMW M21

Automotive Engines

The BMW M21 was a straight-six diesel engine with swirl chamber injection, based on the M20 petrol engine and built for BMW by the Steyr engine plant in Upper Austria from 1983 to 1991, when the M51 succeeded it. After the oil crisis of 1973 BMW wanted a powerful and economical engine, and in 1975 a group of its engineers began the M78 and M105 diesel project from the M20 as a base, with the code name later changed to M21. Steyr began as a joint venture with Steyr-Daimler Puch in 1978 and BMW took control in February 1982. Ford planned to buy 190,000 BMW turbodiesels but built only a few Lincolns with them. At the 1983 IAA the 85 kW M21 was shown in the E28 524td, then the fastest series production diesel car in the world.

Facts
Classification
Fuel or Cycle
Diesel 1
Configuration
Inline 1
Year
1983 1
Cylinder Count
6 1
Connections

Exemplifies

Source BMW M21 (Wikipedia)

Of Make

Source BMW M21 (Wikipedia)
In the Other Atlases

Manufactured By

Also in Business Atlas: the manufacturer of this subject.

Source BMW M21 (Wikipedia)Lead, maker
Quote, Lead, maker
The BMW M21 is a straight-six diesel engine developed by the German engine manufacturer BMW. It has swirl chamber injection and is based on the M20 petrol engine and was produced for BMW by the Upper Austrian Steyr engine plant from 1983 to 1991.
Sources
1. BMW M21 (Wikipedia)
  • Lead, production
    The BMW M21 is a straight-six diesel engine developed by the German engine manufacturer BMW. It has swirl chamber injection and is based on the M20 petrol engine and was produced for BMW by the Upper Austrian Steyr engine plant from 1983 to 1991.
  • Lead, cylinders
    The BMW M21 is a straight-six diesel engine developed by the German engine manufacturer BMW. It has swirl chamber injection and is based on the M20 petrol engine and was produced for BMW by the Upper Austrian Steyr engine plant from 1983 to 1991.
  • Lead, layout
    The BMW M21 is a straight-six diesel engine developed by the German engine manufacturer BMW. It has swirl chamber injection and is based on the M20 petrol engine and was produced for BMW by the Upper Austrian Steyr engine plant from 1983 to 1991.
  • Lead, fuel
    The BMW M21 is a straight-six diesel engine developed by the German engine manufacturer BMW. It has swirl chamber injection and is based on the M20 petrol engine and was produced for BMW by the Upper Austrian Steyr engine plant from 1983 to 1991.
  • Lead, maker
    The BMW M21 is a straight-six diesel engine developed by the German engine manufacturer BMW. It has swirl chamber injection and is based on the M20 petrol engine and was produced for BMW by the Upper Austrian Steyr engine plant from 1983 to 1991.
  • In Group: Road Car Engines of Europe and Japan, Lead
    The BMW M21 is a straight-six diesel engine developed by the German engine manufacturer BMW. It has swirl chamber injection and is based on the M20 petrol engine and was produced for BMW by the Upper Austrian Steyr engine plant from 1983 to 1991.
  • Exemplifies: Automobile Transport, Lead, mode
    The BMW M21 is a straight-six diesel engine developed by the German engine manufacturer BMW. It has swirl chamber injection and is based on the M20 petrol engine and was produced for BMW by the Upper Austrian Steyr engine plant from 1983 to 1991.
  • Of Make: BMW, Lead, make
    The BMW M21 is a straight-six diesel engine developed by the German engine manufacturer BMW. It has swirl chamber injection and is based on the M20 petrol engine and was produced for BMW by the Upper Austrian Steyr engine plant from 1983 to 1991.
  • Part Of: BMW 5 Series (E28), Background, first application
    In 1983 at the IAA, the first passenger car was shown to the public which made use of the 85 kW (115 PS) M21. It was the E28 524td
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