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
| Exact capacity | 1689 cm³ |
| Power system | Common Rail |
| Engine power | 60 - 75 HP |
| Torque | 160 nm |
| Engine block | aluminum R4 |
| Block head | aluminum 16v |
| Cylinder diameter | 80 mm |
| Piston stroke. | 84 mm |
| Compression ratio | 19.5 |
| Engine features | EGR |
| Hydraulic compensator. | tak |
| Timing drive | chain |
| Timing phase adjuster | there is no |
| Turbocharging | BorgWarner K03 |
| What oils to use | 4.5 liters 5W-30 |
| Fuel type | diesel |
| Environmental class | EURO 3 |
| Approximate life expectancy | 250 000 HP |
| Exact capacity | 1689 cm³ |
| Power system | Common Rail |
| Engine power | 90 - 95 HP |
| Torque | 180 nm |
| Engine block | aluminum R4 |
| Block head | aluminum 16v |
| Cylinder diameter | 80 mm |
| Piston stroke. | 84 mm |
| Compression ratio | 19.5 |
| Engine features | EGR, intercooler |
| Hydraulic compensator. | tak |
| Timing drive | chain |
| Timing phase adjuster | there is no |
| Turbocharging | BorgWarner K03 |
| What oils to use | 4.5 liters 5W-30 |
| Fuel type | diesel |
| Environmental class | EURO 3 |
| Approximate life expectancy | 240 000 HP |
| City | 7.4 litry |
| Route | 5.1 litry |
| Mixed | 5.9 litry |
The weight of the OM668 engine according to the catalog is 136 kg. The OM668 engine number is located at the junction of the block and the oil pan. There is little space under the hood, and in order to service the diesel engine, it needs to be lowered with a subframe. The Bosch fuel system is reliable, with only the fuel pressure regulator often failing. If there is a loss of power, check the pressure sensor in the intake manifold and its hose. Fuel leaks from the injection pump or oil leaks from the heat exchanger are also commonly found here. Weak points of this unit also include the flow meter, generator, and EGR valve. The turbocharger cannot be called weak, but it often requires repair by 200,000 km of mileage. After 200,000 km, piston rings often get stuck and oil consumption appears.
| A-Class W168 | 1998 - 2004 |
| Vaneo W414 | 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 2.9-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 3.0-liter V6 diesel engine Mercedes OM 642 has been produced by the company since 2005 and is practically installed in all models from the C-Class to the G-Class SUV, as well as in the Vito vans. This diesel engine is also actively used in Chrysler and Jeep models under its own designation EXL.
The 1.6-liter Honda B16B engine was produced in a Japanese factory from 1997 to 2000 and was exclusively installed only in the sporty Civic Type R model, with the EK9 body. The B16B engine had the highest power-to-displacement ratio at that time - 110 horsepower per liter. The B-series engine lineup also includes: - B16A, - B18B, - B18C, and - B20B.
The 3.6-liter Volkswagen BHK 3.6 FSI engine was produced by the company from 2005 to 2010 and installed in two of the German conglomerate's most well-known SUVs: the Touareg and Audi Q7. The modification of this engine intended for manual transmission was called BHL. The EA390 line also includes the following engines: AXZ, BWS, CDVC, CMTA, and CMVA.