Mercedes-Benz M 189 six-cylinder petrol engine
| Daimler Benz | |
|---|---|
 |
|
| M 189 | |
| Manufacturer: | Mercedes Benz |
| Production period: | 1957 to 1967 |
| Style: | Line six-cylinder |
| Combustion principle: | petrol |
The Mercedes-Benz M 189 is based on a series of inline six-cylinder petrol engines that Daimler-Benz produced from 1957 to 1967.
The engine not only replaced its predecessor, the Mercedes-Benz M 186 (the founder of Daimler-Benz 3-liter engines from the 1950s), but also shaped most of the models of the next decade. The M 189 is basically the injection variant of the M 186 and was the longest produced engine in the family. He was in the course of his production time with changes provided, such. B. 1961 by the introduction of a new base alloy of aluminum instead of cast iron.
Properties
- 6 cylinders in row
- Cylinder head made of aluminum alloy
- Bore and stroke: 85 × 88 mm
- Displacement: 2996 cc
- Single camshaft in the cylinder head
- Two valves per cylinder
- Injection, Bosch, mechanical control
- Crankshaft with seven main bearings
Technical Overview
| engine type | compression |
Rated power kW at 1 / min |
Torque max Nm at 1 / min |
use | Production period |
|---|---|---|---|---|---|
| M189 I | 8:55 | 118/5300 | 237/4200 | Mercedes-Benz 300 ( 300d / W189 ) | 1957- 62 |
| M189 III and M189 IV |
8.7 | 118/5000 | 251/3800 | Mercedes-Benz 300SE / SE long ( W112 ) | 1961- 63 |
| Mercedes-Benz 300 SE Coupé / Cabriolet W112 | 1962-63 | ||||
| M189 V and M189 VI |
8.8 | 125/5400 | 249/4000 | Mercedes-Benz 300 SE / SE long "Tail fin" W112 | 1964 - 65 |
| Mercedes-Benz 300 SE Coupé / Cabriolet W112 | 1964-67 | ||||
| M189 VII and M189 VIII |
8.8 | 125/5400 | 251/4000 | Mercedes-Benz 300 SE / SEL ( W109 ) | 1965-67 |
Technical
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Mercedes M 189 engine Technical details and specifications (1957-1967)
Mercedes 300SE W112 M189 Engine
ENGINE CAPACITY: 183.23 cu in, 2996 cu cm
front, 4 stroke; cylinders: 6, in line
bore and stroke: 3.35 x 3.46 in, 85 x 88 mm
compression ratio: 8.7 : 1
cylinder head: light alloy, dry liners
crankshaft bearings: 7 valves: 2 per cylinder, overhead, in line, with finger levers
camshaft: 1, overhead
lubrication: gear pump, oil-water heat exchanger, full flow pump
carburation: Bosch intermittent injection pump in inlet pipes; fuel feed: electric pump
max power (SAE): 185 hp at 5200 rpm
max torque (SAE): 205 1b ft, 28.3 kgm at 4000 rpm
max number of engine rpm: 6000
specific power: 63 hp/l; cylinder block: light alloy
FUEL CONSUMPTION: 19.5 m imp gal, 16.2 m US gal, 14.5 1 x 100 km© motorcar history
