The 4.0-liter diesel engine of the Mercedes OM628 was produced by the company from 1999 to 2005 and installed in the largest and most expensive models, such as W211, W220 or W463. This unit was offered in one variant, DE 40 LA with the index 400 CDI. Also included in the V8 lineup is: OM629.
| Exact capacity | 3996 cm³ |
| Power system | Common Rail |
| Engine power | 250 - 260 HP |
| Torque | 560 nm |
| Engine block | aluminum V8 |
| Block head | aluminum 32v |
| Cylinder diameter | 86 mm |
| Piston stroke. | 86 mm |
| Compression ratio | 18.5 |
| Engine features | intercooler |
| Hydraulic compensator. | tak |
| Timing drive | chain |
| Timing phase adjuster | there is no |
| Turbocharging | GT1749V |
| What oils to use | 10.5 liters 5W-30 |
| Fuel type | diesel |
| Environmental class | EURO 4 |
| Approximate life expectancy | 300 000 HP |
| City | 14.7 litry |
| Route | 8.8 litry |
| Mixed | 10.9 litry |
The weight of the OM628 engine according to the catalog is 275 kg. The engine number OM628 is located at the junction of the block and the gearbox. This engine is known for a large number of problems and the complexity of their elimination. The main troubles are constantly leaking injectors and failures of the high-pressure fuel pump. The engine has a tendency to quickly clog, especially in relation to the EGR system. Prolonged overheating of the engine can lead to scoring in the cylinder block sleeves. Many owners have encountered cylinder head cracks at mileages of 100 - 150 thousand km.
| E-Class W211 | 2002 - 2005 |
| S-Class W220 | 1999 - 2005 |
| G-Class W463 | 2001 - 2005 |
| ML-Class W163 | 2001 - 2005 |
The 2.0-liter diesel engine Mercedes OM 654 was introduced by the company only in 2016 and is characterized by an aluminum cylinder block with plasma-sprayed Nanoslide iron coating. There is a version of the transverse OM 654q layout as well as an updated modification OM 654M. The R4 series includes: OM616 OM601 OM604 OM611 OM640 OM646 OM651 OM668
The 1.7-liter engine of the Mercedes OM668 or Vaneo 1.7 CDI was produced from 1998 to 2005 and only installed in the first generation A-Class model or similar compact vaneo. For the diesel engine, there were two versions: standard DE 17 LA and reduced DE 17 LA red, without an intercooler. The R4 engines include: OM615 OM601 OM604 OM611 OM640 OM646 OM651 OM654
The 2.5-liter, 5-cylinder inline engine Mercedes OM 605 was produced from 1993 to 2001 and was installed in several popular models of the company, such as the W124, W202, W210. This powertrain was offered in a naturally aspirated version with 113 HP and a turbocharged version with 150 HP. The inline R5 engine lineup also includes diesel engines: OM617, OM602, OM612, and OM647.
The 2.5-liter V6 Honda J25A engine was produced in an American factory from 1998 to 2003 and was only used in the popular third-generation Inspire model or its twin, the Saber. This engine is considered the rarest in the wide J-series V-engine family. The J-series also includes the following engines: J30A, J32A, J35A, and J37A.
The 1.5-liter 16-valve Hyundai G4ER engine was produced by the company from 1995 to 2000 and used in the first generation of the Accent model and its various variations, such as Excel or Verna. This power unit is known by a completely different index, G4FK, in many sources. The Alpha series also includes: G4EA, G4EB, G4EC, G4ED, G4EE, G4EH, and G4EK.