- Mercedes-Benz M102 engine
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The M102 engine family was a straight-4 gasoline automobile engine from Mercedes-Benz in the 1980s and early 1990s. It is a relatively oversquare engine with a large bore and short stroke. Compare to the M115 engine which was used during the same time frame.
Contents
M102.910
Used in the W201 190E 1.8 from 1990 onwards, as well as the limited edition W201 180E model only sold in Australia from 1991 to 1993. Cubic capacity: 1797cc Power: 82kW Torque: 154Nm
Applications:
- 1990-1993 180E and 190E 1.8
M102.920
The M102.920 was a 2.0 L (1997 cc) engine with an 89 mm bore and 80.25 mm stroke. Power output was 109 hp (81 kW).
Equipped w/ carburettor 175 CDT
Applications:
M102.921
Similar to M102.920, but less power output due to a different camshaft and different carburettor.
Applications:
- 1983-1993 190
M102.924
Similar to M102.920, different carburettor, new single-belt drive for generator. Hydraulic aided valvedrive.
Application
M102.962
A later multi-point fuel-injected variation of the M102.921 that was introduced in 1987, with a power output of about 122 bhp. An "E" was added to the model of the vehicle (standing for "einspritzung", the German word for fuel injection).
Applications:
- 1983-1993 190E
M102.963
2.0 litre version with KE-Jetronic fuel injection.
KE-Jetronic (1985-1993) : Electronically controlled mechanical fuel injection. The Engine Control Unit (ECU) may be either analog or digital, and the system may or may not have closed-loop lambda control. Commonly known as 'CIS-E' in the USA. The later KE3 (CIS-E III) variant features knock sensing capabilities.
Applications:
- 1990 200E
M102.980
The M102.980 was a 2.3 L (2299 cc) version with a 95.5 mm bore and the same 80.25 mm stroke. Power output was 136 hp (100 kW). Engine weight was 118 kg. Used K-jetronic fuel injection.
Applications:
M102.981
The M102.981 was a 2.3 L (2299 cc) version with a 95.5 mm bore and the same 80.25 mm stroke. Power output was 125 hp (92 kW).
Applications:
- 1979-1989 230GE Geländewagen
M102.982
The same prototype as the M102.981 version, exept for the increased amount of horsepowers and torque. Much resemblant to the M102.980 version, which was modified slightly with a newer jetronic system from BOSCH.
Applications:
- All E-Classed W124 stock models (200E-230E) that were produced from 1990-1995.
M102.985
A later multi-point fuel-injected M102 with a displacement of 2.3 L. Used KE-jetronic fuel injection.
Applications:
Cosworth conversions
Cosworth developed an M102 2.3-litre variant with a 16-valve cylinder head for use in the 190E 2.3-16. The 2.5-litre engine in the later 190E 2.5-16 was based on this same engine.
See also
Categories:- Mercedes-Benz engines
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