Mercedes-Benz OM604 engine

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Mercedes-Benz OM604 engine
Overview
Manufacturer Mercedes-Benz
Production 1993–1998
Layout
Configuration Straight-4
Displacement 2.0 L (1997 cc)
2.2 L (2155 cc)
Cylinder block alloy Cast iron
Valvetrain DOHC 16 valves
Compression ratio 22.0:1
Combustion
Turbocharger No
Fuel system Indirect injection
Fuel type Diesel fuel
Chronology
Predecessor Mercedes-Benz OM601 engine
Successor Mercedes-Benz OM611 engine

The Mercedes-Benz OM604 is a 2.0 and 2.2 litre 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.

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

ID Displacement Bore x stroke DIN-rated max. motive power
at rpm
max. torque
at rpm
years applications
OM 604.910 EVE 2155 cc 89.0 x 86.6 mm 70 kW (95 PS; 94 hp) @5000 rpm 150 N⋅m (111 lb⋅ft) @3100 rpm 1993–1998 W202 C 220 D
OM 604.910 EVE 2155 cc 89.0 x 86.6 mm 55 kW (75 PS; 74 hp) @5000 rpm 150 N⋅m (111 lb⋅ft) @3100 rpm 1996–1998 W202 C 220 D taxis
OM 604.912 EVE 2155 cc 89.0 x 86.6 mm 70 kW (95 PS; 94 hp) @5000 rpm 150 N⋅m (111 lb⋅ft) @3100 rpm 1995–1998 W210 E 220 D
OM 604.912 EVE 2155 cc 89.0 x 86.6 mm 55 kW (75 PS; 74 hp) @5000 rpm 150 N⋅m (111 lb⋅ft) @3100 rpm 1996–1998 W210 E 220 D taxis
OM 604.915 EVE 1997 cc 87.0 x 84.0 mm 65 kW (88 PS; 87 hp) @5000 rpm 135 N⋅m (100 lb⋅ft) @2000 rpm 1996–1998 W202 C 200 D
OM 604.917 EVE 1997 cc 87.0 x 84.0 mm 65 kW (88 PS; 87 hp) @5000 rpm 135 N⋅m (100 lb⋅ft) @2000 rpm 1996–1998 W210 E 200 D

See also[edit]