Mercedes-Benz OM602 engine
Encyclopedia
The successor of the OM617
engine family was the newly developed straight-5
Diesel
automobile engine OM602 from Mercedes-Benz
used from 1980s up to 2002. With some Mercedes-Benz 250D/E250D diesels exceeding 500,000 or 1,000,000 miles, it's considered to be one of the most reliable engines ever produced, a success which is only comparable with the famous OM617 engine.
The 5-cylinder OM602 was succeeded by the four valve engine OM605 (E250D 20V) and later the OM612 and OM647 with turbo charger and Common Rail Direct Injection (C/E/ML 270CDI).
It was available in either naturally aspirated or turbocharged variants with two valves per cylinder.
The camshafts and injection pump are driven by duplex chain from the crankshaft. A separate single row chain drives the oil pump. The camshaft operated the valves via hydraulic bucket tappets; valve clearance adjustment is automatic.
On earlier models of 2497cc Fuel injection is indirect. A Bosch PES in-line injection pump is used, with a mechanical governor and vacuum-operated stop control. The pump is lubricated by a connection to the engine oil circulation and the fuel lift pump is mounted on the side of the injection pump.
The later, 2.9L capacity unit uses a Bosch VE style rotary distributor injection pump with electronic control. This larger capacity version uses direct injection.
Preheating is by glow plugs with automatic control of preheating time.
| style="background:#CCCCCC;text-align:center" | Model indication
| style="background:#CCCCCC;text-align:center" | Year
| style="background:#CCCCCC;text-align:center" | Engine no OM602...
| style="background:#CCCCCC;text-align:center" | Power in kW (HP)
|-
| style="background:#EEEEEE;text-align:center" colspan=4 | OM 602.xxx (5-cylinder diesel)
|-
|W201
190 2.5 D & W124
250 D
| rowspan="2"|04/1985 - 06/1993
|.911 & .912 & .930 & .931
|rowspan="2"|66 (90) (<'89) or 69 (94) (>'89)
|-
|G-Class
250 GD 4x4
|.938 & .939
|-
|210 & 310 & 410 2,9 D.
| rowspan="2"|10/1988 -> ?
|.940 & .942
|rowspan="2"|72 (98) or 75 (102)
|-
|G-Class
290 GD 4x4
|.946 & .947
|-
|W201
190 2.5 turbodiesel & W124
250D Turbo / 300D 2.5 Turbo
| rowspan="2"|01/1987 -> 1993
|A.961 & A.962
|rowspan="2"|90 (122) (<'88) or 92 (126) (>'88)
|-
|Sprinter 2,5 Turbo-D.
|A.963
|-
|212D & 312D & 412D & Sprinter 2,9 TD.
|02/1995 -> 04/2000
|A.980 & A.986
|90 (122)
|-
|G-Class
290 GD turbodiesel 4x4
|07/1997 -> 09/2000
|A.983
|88 (120)
|-
|W210
E290 turbodiesel
|03/1996 -> 07/1999
|A.982
|95 (129)
|-
|}>
Mercedes-Benz OM617 engine
The OM617 engine family was a straight-5 Diesel automobile engine from Mercedes-Benz used in the 1970s and 1980s. With some Mercedes-Benz 300D/300SD diesels already exceeding 500,000 miles, it's considered to be one of the most reliable engines ever produced .-OM617.912:The OM617.912 was a...
engine family was the newly developed straight-5
Straight-5
The straight-five engine or inline-five engine is an internal combustion engine with five cylinders aligned in one row or plane, sharing a single engine block and crankcase...
Diesel
Diesel engine
A diesel engine is an internal combustion engine that uses the heat of compression to initiate ignition to burn the fuel, which is injected into the combustion chamber...
automobile engine OM602 from Mercedes-Benz
Mercedes-Benz
Mercedes-Benz is a German manufacturer of automobiles, buses, coaches, and trucks. Mercedes-Benz is a division of its parent company, Daimler AG...
used from 1980s up to 2002. With some Mercedes-Benz 250D/E250D diesels exceeding 500,000 or 1,000,000 miles, it's considered to be one of the most reliable engines ever produced, a success which is only comparable with the famous OM617 engine.
The 5-cylinder OM602 was succeeded by the four valve engine OM605 (E250D 20V) and later the OM612 and OM647 with turbo charger and Common Rail Direct Injection (C/E/ML 270CDI).
The engine
The Mercedes OM602 engine is a 5 cylinder diesel engine of 2497cc. The engine was also increased in capacity to 2874cc (2.9L) and used in the Phase 1 Mercedes Sprinter vans, the Ssangyong Musso and Korando range and even in the 1996-1999 models of the E-class.It was available in either naturally aspirated or turbocharged variants with two valves per cylinder.
The camshafts and injection pump are driven by duplex chain from the crankshaft. A separate single row chain drives the oil pump. The camshaft operated the valves via hydraulic bucket tappets; valve clearance adjustment is automatic.
On earlier models of 2497cc Fuel injection is indirect. A Bosch PES in-line injection pump is used, with a mechanical governor and vacuum-operated stop control. The pump is lubricated by a connection to the engine oil circulation and the fuel lift pump is mounted on the side of the injection pump.
The later, 2.9L capacity unit uses a Bosch VE style rotary distributor injection pump with electronic control. This larger capacity version uses direct injection.
Preheating is by glow plugs with automatic control of preheating time.
Versions of OM602 Mercedes 5-cylinder diesel engine
| style="background:#CCCCCC;text-align:center" | Year
| style="background:#CCCCCC;text-align:center" | Engine no OM602...
| style="background:#CCCCCC;text-align:center" | Power in kW (HP)
|-
| style="background:#EEEEEE;text-align:center" colspan=4 | OM 602.xxx (5-cylinder diesel)
|-
|W201
Mercedes-Benz W201
The Mercedes-Benz W201 is a compact executive car manufactured by Mercedes-Benz from 1982–1993, positioned below the Mercedes-Benz E-Class and S-Class — and marketed under variants of the Mercedes 190 nameplate....
190 2.5 D & W124
Mercedes-Benz W124
W124 is the Mercedes-Benz internal chassis-designation for the 1985 to 1995 version of the Mercedes-Benz E-Class. The W124 models replaced the W123 models after 1985 and were superseded by the W210 E-Class after 1995.-History:...
250 D
| rowspan="2"|04/1985 - 06/1993
|.911 & .912 & .930 & .931
|rowspan="2"|66 (90) (<'89) or 69 (94) (>'89)
|-
|G-Class
Mercedes-Benz G-Class
The original 460-series Geländewagen went on sale for civilian buyers in 1979, after having debuted in February of that year. It was offered with two wheelbases, a short wheelbase of 2,400 mm and a long one of 2,850 mm. One could choose between three body styles: A two-door short...
250 GD 4x4
|.938 & .939
|-
|210 & 310 & 410 2,9 D.
| rowspan="2"|10/1988 -> ?
|.940 & .942
|rowspan="2"|72 (98) or 75 (102)
|-
|G-Class
Mercedes-Benz G-Class
The original 460-series Geländewagen went on sale for civilian buyers in 1979, after having debuted in February of that year. It was offered with two wheelbases, a short wheelbase of 2,400 mm and a long one of 2,850 mm. One could choose between three body styles: A two-door short...
290 GD 4x4
|.946 & .947
|-
|W201
Mercedes-Benz W201
The Mercedes-Benz W201 is a compact executive car manufactured by Mercedes-Benz from 1982–1993, positioned below the Mercedes-Benz E-Class and S-Class — and marketed under variants of the Mercedes 190 nameplate....
190 2.5 turbodiesel & W124
Mercedes-Benz W124
W124 is the Mercedes-Benz internal chassis-designation for the 1985 to 1995 version of the Mercedes-Benz E-Class. The W124 models replaced the W123 models after 1985 and were superseded by the W210 E-Class after 1995.-History:...
250D Turbo / 300D 2.5 Turbo
| rowspan="2"|01/1987 -> 1993
|A.961 & A.962
|rowspan="2"|90 (122) (<'88) or 92 (126) (>'88)
|-
|Sprinter 2,5 Turbo-D.
|A.963
|-
|212D & 312D & 412D & Sprinter 2,9 TD.
|02/1995 -> 04/2000
|A.980 & A.986
|90 (122)
|-
|G-Class
Mercedes-Benz G-Class
The original 460-series Geländewagen went on sale for civilian buyers in 1979, after having debuted in February of that year. It was offered with two wheelbases, a short wheelbase of 2,400 mm and a long one of 2,850 mm. One could choose between three body styles: A two-door short...
290 GD turbodiesel 4x4
|07/1997 -> 09/2000
|A.983
|88 (120)
|-
|W210
Mercedes-Benz W210
The Mercedes-Benz W210 is a mid-size luxury car–executive car which was produced by the German automaker Mercedes-Benz from 1995 through 2002 . The W210 replaced the W124 model. They were sold under the E-Class model names in both sedan and station wagon body types...
E290 turbodiesel
|03/1996 -> 07/1999
|A.982
|95 (129)
|-
|}>