The Mercedes OM 604 diesel engine series with a displacement of 2.0 and 2.2 liters was produced from 1993 to 1999 and installed in two models of the company: the C-Class (W202) or E-Class (W210). A modified version of the 2.2-liter diesel engine with a power output of 75 HP was offered for taxi services. The inline-four engines include: OM615 OM616 OM601 OM611 OM640 OM646 OM651 OM668
| Exact capacity | 1997 cm³ |
| Power system | komora widłowa |
| Engine power | 88 HP |
| Torque | 135 nm |
| Engine block | cast iron R4 |
| Block head | aluminum 16v |
| Cylinder diameter | 87 mm |
| Piston stroke. | 84 mm |
| Compression ratio | 22 |
| Engine features | there is no |
| Hydraulic compensator. | tak |
| Timing drive | chain |
| Timing phase adjuster | there is no |
| Turbocharging | there is no |
| What oils to use | 6.5 liters 5W-40 |
| Fuel type | diesel |
| Environmental class | EURO 2/3 |
| Approximate life expectancy | 400 000 HP |
| Exact capacity | 2155 cm³ |
| Power system | komora widłowa |
| Engine power | 95 HP |
| Torque | 150 nm |
| Engine block | cast iron R4 |
| Block head | aluminum 16v |
| Cylinder diameter | 89 mm |
| Piston stroke. | 86.6 mm |
| Compression ratio | 22 |
| Engine features | there is no |
| Hydraulic compensator. | tak |
| Timing drive | chain |
| Timing phase adjuster | there is no |
| Turbocharging | there is no |
| What oils to use | 6.5 liters 5W-40 |
| Fuel type | diesel |
| Environmental class | EURO 2/3 |
| Approximate life expectancy | 450 000 HP |
| City | 9.7 litry |
| Route | 6.1 litry |
| Mixed | 7.4 litry |
The weight of the OM604 engine according to the catalog is 180 kg. The engine number OM604 is located at the front, at the junction with the cylinder head. In terms of durability, these iron engines are very reliable and have a lifespan of approximately 400-500 thousand km. The main problem with this diesel engine is the temperamental fuel pump from Lucas. Over time, the gaskets in the injection pump can deteriorate, and not everyone is willing to take on its repair. The timing chain can stretch as early as 200-250 thousand km, which is fatal for the cylinder head. Additionally, the cylinder head is highly sensitive to overheating and can sometimes simply crack.
| C-Class W202 | 1993 - 1999 |
| E-Class W210 | 1995 - 1998 |
The 2.2-liter inline diesel engine from Mercedes, model OM 611, was produced from 1997 to 2006 and used in both passenger cars, such as W202 or W210, and in Sprinter-type minibusses. There were two versions of the crankshaft, so some versions had different displacement. The R4 engines include: OM615 OM616 OM601 OM604 OM640 OM646 OM651 OM668
The 2.9-liter, 6-cylinder diesel engine of the Mercedes OM 656 has been produced since 2017 and is installed in many modern models of the company, such as W213, W222 or W463. This diesel engine has an aluminum block and plasma-sprayed Nanoslide-coated iron. Also included in the R6 lineup are: OM603, OM606, OM613 and OM648.
The 4.0-liter diesel engine of Mercedes OM629 was produced by the company from 2005 to 2010 and was only installed in the largest and most expensive models of the company, such as W211, W221, and X164. The engine was offered in one version, DE 40 LA, but with different indices: 420 CDI and 450 CDI. The V8 series also includes: OM628.
The 3.1-liter Isuzu 4JG2 diesel engine was produced by the company from 1991 to 2000 and installed in various off-road vehicles such as the Trooper and similar Opel Monterey. There were naturally aspirated versions, turbocharged versions, and the most powerful version with an intercooler. The J-engine lineup also includes diesel units: 4JB1, 4JJ1, 4JJ3, and 4JX1.
The 2.5-liter engine Mazda PY-VPTS or Skyactiv-G 2.5 Turbo has been produced since 2016 and is installed in many popular models of the Japanese company, such as CX-5, CX-8, and CX-9. The engine is equipped with the DPT system, which simulates the operation of a variable geometry turbocharger. The Skyactiv-G line also includes engines: P5-VPS, PE-VPS, and PY-VPS.