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 OM602 Powered Mercedes-Benz vehicles exceeding , it is considered to be one of the most reliable engines ever produced, a success which is only comparable with the famous OM617 engine.
It is closely related to the 4 cylinder OM601 and the 6 cylinder OM603 engine families of the same era.
The 5-cylinder OM602 was succeeded by the four-valve OM605 engine and later the OM612 and OM647 engines with turbocharger and common rail direct injection.
The engine The Mercedes OM602 engine is a 5-cylinder diesel engine of . The was used in the 310D and 410D Mercedes-Benz T1 and the Phase 1 Mercedes-Benz Sprinter vans (where it was modified for direct injection), the Ssangyong Musso, Korando and Rexton 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. The water pump is driven via the single serpentine belt, which also drives all other accessories.
On many OM602 engines 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.
Some later versions of the capacity unit use a Bosch VE-style rotary distributor injection pump with electronic control and have a significantly different combustion chamber as they use direct injection.
Preheating is by glow plugs with automatic control of preheating time.
Versions of OM602 Mercedes 5-cylinder diesel engine Model indication Year Engine no OM602... Power OM 602.xxx (5-cylinder diesel) W201 190 2.5 D & W124 250 D 04/1985 - 06/1993 .911 & .912 & .930 & .931 (<'89) or (>'89) G-Class 250 GD 4x4 .938 & .939 MB100 & SsangYong Istana & Daewoo Istana1996 - > 2004662.94170 kW (95 PS; 94 hp)SsangYong Korando (KJ) 2.9 D01/1997-> 01/2007 T1 210 & 310 & 410 2.9 D. 10/1988 -> 1995 .940 & .942 or G-Class 290 GD 4x4 .946 & .947 W201 190D 2.5 Turbo & W124 250D Turbo / 300D 2.5 Turbo 01/1987 -> 1996 A.961 & A.962 (<'88) or (>'88)210D & 310D & 410D & Sprinter 2.9 TD02/1995 -> 04/2000A.963 212D & 312D & 412D & Sprinter 2.9 TD 02/1995 -> 04/2000A.980 & A.986512D & 612D & 812D & Vario 2.9 TD07/1996 -> 09/2001 G-Class 290 GD turbodiesel 4x4 07/1997 -> 09/2000 A.983 W210 E290 turbodiesel 03/1996 -> 07/1999 A.982 SsangYong Korando (KJ) 2.9 TD01/1997 -> 01/2007662.91088 kW (120 PS; 118 hp) Ssangyong Musso (FJ) & SsangYong Musso Sports (P100) 2.9 TD 08/1993 -> 06/2005SsangYong Rexton I (Y200) 29009/2001 -> 02/2006Mercedes UNIMOG1978 -> 1989A. 981 & A.982
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