Mercedes-Benz M03 engine

Mercedes-Benz M03
Overview
Manufacturer	Mercedes-Benz
Production	1926-1927
Layout
Configuration	Inline-6
Displacement	3.0 L (183 cu in)
Cylinder bore	76 mm (3.0 in)
Piston stroke	115 mm (4.5 in)
Valvetrain	12-valve, SOHC, two-valves per cylinder
Compression ratio	5.1:1
Combustion
Fuel system	Carburetor
Fuel type	Gasoline
Oil system	Dry sump
Output
Power output	55 hp (41 kW)
Torque output	81–103 lb⋅ft (110–140 N⋅m)
Chronology
Successor	Mercedes-Benz M04 engine

The Mercedes-Benz M03 engine is a naturally-aspirated, 3.0-liter, straight-6, internal combustion piston engine, designed, developed and produced by Mercedes-Benz; between 1926 and 1927.[1][2][3][4]

M03 engine

The side-valve six-cylinder 2,968 cc engine delivered a maximum output of 55 PS (40 kW; 54 hp) at 3,500 rpm which translated into a top speed of 100 km/h (62 mph). Power was transmitted via a four-speed manual transmission to the rear wheels which were fixed to a rigid axle suspended from semi-elliptic leaf springs. The braking applied to all four wheels, mechanically controlled using rod linkages.[5]

Applications

• Mercedes-Benz 12/55 hp Type 300 Sedan

References

1. "Mercedes-Benz M03 Engine". Sportlich-Leicht.com. Retrieved 10 November 2021.
2. "1927 Mercedes-Benz 12/55 ps Saloon W 03 specifications | technical data | performance | fuel economy | emissions | dimensions | horsepower | torque | weight". Carfolio.com. Retrieved 10 November 2021.
3. "Mercedes-Benz 12/55 PS W03". Car.info. Retrieved 10 November 2021.
4. Murphy, William (2 July 2008). "1927 Mercedes-Benz S-Type Sportwagen". Simeone Foundation Automotive Museum. Retrieved 10 November 2021.
5. Oswald, p. 223