The 2.4-liter inline diesel engine from Mercedes, called the OM 616, was produced from 1973 to 1992 and was installed in both medium-sized models such as the W115, W123, and the G-Wagen off-road vehicle. This powertrain was significantly modernized in 1978, hence it has two versions. The four-cylinder engines include: OM615 OM601 OM604 OM611 OM640 OM646 OM651 OM668
| Typ | row |
| Number of cylinders | 4 |
| number of valves | 8 |
| Exact capacity | 2404 cm³ |
| Cylinder diameter | 91 mm |
| Piston stroke. | 92.4 mm |
| Power system | swirl chamber |
| Power | 65 HP |
| Torque | 137 nm |
| Compression ratio | 21.0 |
| Fuel type | diesel |
| Environmental class | EURO 0 |
| Typ | row |
| Number of cylinders | 4 |
| number of valves | 8 |
| Exact capacity | 2399 cm³ |
| Cylinder diameter | 90.9 mm |
| Piston stroke. | 92.4 mm |
| Power system | swirl chamber |
| Power | 72 - 75 HP |
| Torque | 137 nm |
| Compression ratio | 21.5 |
| Fuel type | diesel |
| Environmental class | EURO 0 |
| City | 9.9 litry |
| Route | 7.2 litry |
| Mixed | 8.9 litry |
The weight of the OM616 engine according to the catalog is 225 kg. The engine number is located at the junction of the block and the cylinder head. The rear crankshaft seal is the most well-known weak point of this very reliable and durable diesel engine, often causing leaks that can lead to oil starvation and expensive repairs. In terms of the fuel system, the Bosch M injection pump with vacuum control often breaks its rack drive diaphragm, although the pumps of the updated MW and M/RSF series units no longer have this problem. Additionally, the auxiliary pump can unexpectedly fail due to wear on the seals. Despite being equipped with a double-row timing chain, it doesn't last for a very long time. It is commonly replaced around every 200-250 thousand kilometers, often together with tensioners and sprockets.
| E-Class W115 | 1973 - 1976 |
| E-Class W123 | 1976 - 1986 |
| G-Class W460 | 1979 - 1987 |
| MB100 W631 | 1988 - 1992 |
| T1-Series W601 | 1982 - 1988 |
| T2-Series W602 | 1986 - 1989 |
The 2.4-liter inline diesel engine from Mercedes, called the OM 616, was produced from 1973 to 1992 and was installed in both medium-sized models such as the W115, W123, and the G-Wagen off-road vehicle. This powertrain was significantly modernized in 1978, hence it has two versions. The four-cylinder engines include: OM615 OM601 OM604 OM611 OM640 OM646 OM651 OM668
2.0 liter engine Mercedes OM640 or A-Class 2.0 CDI was produced from 2004 to 2012 and was only mounted in the second generation of A-Class and similar compact van class B. This propulsion system essentially replaced the popular diesel engine OM668 with a capacity of 1.7 liters. The R4 series includes: OM615 OM601 OM604 OM611 OM646 OM651 OM654
The Mercedes OM 602 Diesel engine series with a capacity of 2.5 and 2.9 liters was produced from 1985 to 2001 and installed in many popular models of the company, such as W124, W201, W210, or W463. In addition to versions with pre-chamber ignition, a modification with direct fuel injection was also offered. The R5 engine line also includes Diesel engines: OM617, OM605, OM612, and OM647.
The 2.7-liter 5-cylinder inline engine of the Mercedes OM612 was produced from 1999 to 2007 and installed in popular models of the company such as the W203, W210, W163, and Gelandewagen. There was also an AMG version of this diesel engine with a capacity of 3.0 liters and a power output of 230 hp. In the R5 engine lineup, there are also diesel engines: OM617, OM602, OM605, and OM647.
1.2-liter turbocharged engine Peugeot EB2ADTX or HNN is produced by the company since 2018 and installed in many sporty versions of the company's models with PureTech 155 designations. There is also a slightly simplified version of this engine that meets more stringent environmental standards - EB2ADTXM. The EB engine lineup also includes: EB0, EB2, EB2M, EB2DT, and EB2DTS.
The 1.6-liter GM LH7 diesel engine was installed at the Hungarian factory from 2017 to 2019 and used in corporate models such as the GMC Terrain 2, Chevrolet Cruze, and Equinox. This engine belongs to the GM Medium Diesel family and is known as the B16DTH in Opel models.