Mercedes-Benz OM604 engine

The Mercedes-Benz OM604 is a 2.0 litres (1,997 cc) and 2.2 litres (2,155 cc) inline-four cylinder (R4/I4) double overhead camshaft (DOHC) diesel engine with indirect injection manufactured by Mercedes-Benz between 1993 and 1998. It replaced the single overhead camshaft (SOHC) OM601 engine. Unlike other Mercedes Benz diesels at the time that used a Bosch inline injection pump the OM604 used the Lucas electronically controlled rotary distributor injection pump (EVE) which is less reliable. The seals of the Lucas injection pumps become brittle over time and leak. Since the replacement of the entire injection pump is very expensive, a repair kit is offered in which the affected seals are replaced.

Mercedes-Benz OM604 engine
Overview
ManufacturerMercedes-Benz
Production1993–1998
Layout
ConfigurationNaturally aspirated Straight-4
Displacement2.0 L (1,997 cc)
2.2 L (2,155 cc)
Cylinder bore89 mm (3.50 in)
87 mm (3.43 in)
Piston stroke86.6 mm (3.41 in)
84 mm (3.31 in)
Block materialCast iron
ValvetrainDOHC 4 valves x cyl.
Compression ratio22.0:1
Combustion
Fuel systemIndirect injection
ManagementLucas
Fuel typeDiesel
Cooling systemWater cooled
Output
Power output55–70 kW (75–95 PS; 74–94 hp)
Torque output135–150 N⋅m (100–111 lb⋅ft)
Chronology
PredecessorMercedes-Benz OM601 engine
SuccessorMercedes-Benz OM611 engine

It is related to the straight-5 2.5 litre OM605 and the straight-6 3.0 litre OM606 engines.

IDDisplacementBore x strokeMax. power (DIN-rated)Max. torqueYearsApplications
OM 604.910 EVE2.2 L (2,155 cc)89 mm × 86.6 mm (3.50 in × 3.41 in)70 kW (95 PS; 94 hp) @ 5000 rpm150 N⋅m (111 lb⋅ft) @ 3100 rpm1993–1998W202 C 220 D
OM 604.910 EVE55 kW (75 PS; 74 hp) @ 5000 rpm1996–1998W202 C 220 D taxis
OM 604.912 EVE70 kW (95 PS; 94 hp) @ 5000 rpm1995–1998W210 E 220 D
OM 604.912 EVE55 kW (75 PS; 74 hp) @ 5000 rpm1996–1998W210 E 220 D taxis
OM 604.915 EVE2.0 L (1,997 cc)87 mm × 84 mm (3.43 in × 3.31 in)65 kW (88 PS; 87 hp) @ 5000 rpm135 N⋅m (100 lb⋅ft) @ 2000 rpm1996–1998W202 C 200 D
OM 604.917 EVEW210 E 200 D

See also

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