inline-four engine
A straight-four engine (also called an inline-four) is a four-cylinder piston engine where cylinders are arranged in a line along a common crankshaft.
The vast majority of automotive four-cylinder engines use a straight-four layout (with the ...
produced from 1965 to 1972.
Design
The M118 was originally developed by
Mercedes-Benz
Mercedes-Benz (), commonly referred to as Mercedes and sometimes as Benz, is a German luxury and commercial vehicle automotive brand established in 1926. Mercedes-Benz AG (a Mercedes-Benz Group subsidiary established in 2019) is headquartere ...
for the mass-produced vehicle segment. It was first used by Audi in the F103, after
Daimler AG
The Mercedes-Benz Group AG (previously named Daimler-Benz, DaimlerChrysler and Daimler) is a German multinational automotive corporation headquartered in Stuttgart, Baden-Württemberg, Germany. It is one of the world's leading car manufacture ...
sold the company to
Volkswagen
Volkswagen (),English: , . abbreviated as VW (), is a German Automotive industry, motor vehicle manufacturer headquartered in Wolfsburg, Lower Saxony, Germany. Founded in 1937 by the German Labour Front under the Nazi Party and revived into a ...
. The engine replaced the previous
two-stroke engines
A two-stroke (or two-stroke cycle) engine is a type of internal combustion engine that completes a power cycle with two strokes (up and down movements) of the piston during one power cycle, this power cycle being completed in one revolution of t ...
, featured a Solex
carburetor
A carburetor (also spelled carburettor) is a device used by an internal combustion engine to control and mix air and fuel entering the engine. The primary method of adding fuel to the intake air is through the venturi tube in the main meteri ...
, and utilised a swirling effect in the intake ducts 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
* 1968–1972
Audi 60 60 may refer to:
* 60 (number)
* one of the years 60 BC, AD 60, 1960, 2060
* Neodymium, the 60th element
* <, the ASCII character with code 60
*
Audi 72 72 may refer to:
* 72 (number)
* One of the years 72 BC, AD 72, 1972, 2072
* "72", by James from the album '' Hey Ma''
See also
* List of highways numbered
A ''list'' is any set of items in a row. List or lists may also refer to:
People ...
55 kW version
* 1968–1972
Audi 75
F103 is the internal designation for a series of car models produced by Auto Union Gesellschaft mit beschränkter Haftung, GmbH (after merger with NSU Motorenwerke in 1969: Audi NSU Auto Union) in West Germany from 1965 to 1972, derived from the ...
59 kW version
* 1966–1968
Audi 80
The Audi 80 is a compact executive car produced by the Audi subdivision of the Volkswagen Group across four generations from 1966 to 1996. It shared its platform with the Volkswagen Passat from 1973 to 1986 and was available as a saloon, and s ...
66 kW version
* 1966–1971
Audi 90 90 may refer to:
* 90 (number)
* one of the years 90 BC, AD 90, 1990, 2090, etc.
* ''90'' (album), an album by the electronic music group 808 State
* ''90'' (EP), an album by the band South Club
* Atomic number 90: thorium
* Audi 90, a precursor ...