The 3.2-liter inline 6-cylinder Mercedes OM648 engine was produced from 2002 to 2006 and was exclusively installed in the W211 body E-Class models and the upgraded W220 body S-Class models. In addition to the standard version with a power output of 204 horsepower, a variant with reduced power output of 177 horsepower was also offered. The R6 series also includes diesel engines: OM603, OM606, OM613, and OM656.
| Exact capacity | 3222 cm³ |
| Power system | Common Rail |
| Engine power | 177 HP |
| Torque | 425 nm |
| Engine block | cast iron R6 |
| Block head | aluminum 24v |
| Cylinder diameter | 88 mm |
| Piston stroke. | 88.3 mm |
| Compression ratio | 18 |
| Engine features | there is no |
| Hydraulic compensator. | tak |
| Timing drive | chain |
| Timing phase adjuster | there is no |
| Turbocharging | VGT |
| What oils to use | 7.5 liters 5W-30 |
| Fuel type | diesel |
| Environmental class | EURO 4 |
| Approximate life expectancy | 400 000 HP |
| Exact capacity | 3222 cm³ |
| Power system | Common Rail |
| Engine power | 204 HP |
| Torque | 500 nm |
| Engine block | cast iron R6 |
| Block head | aluminum 24v |
| Cylinder diameter | 88 mm |
| Piston stroke. | 88.3 mm |
| Compression ratio | 18 |
| Engine features | there is no |
| Hydraulic compensator. | tak |
| Timing drive | chain |
| Timing phase adjuster | there is no |
| Turbocharging | VGT |
| What oils to use | 7.5 liters 5W-30 |
| Fuel type | diesel |
| Environmental class | EURO 4 |
| Approximate life expectancy | 450 000 HP |
| City | 11.0 litry |
| Route | 5.8 litry |
| Mixed | 7.7 litry |
The weight of the OM648 engine according to the catalog is 240 kg. The OM648 engine number is located on the cylinder block. The main problems of the diesel engine are related to the components of the Common Rail fuel system. The fuel delivery cutoff valve and the fuel rail pressure sensor often fail. Due to the burning of the fireproof washers under the injectors, the engine quickly becomes clogged. The usual cause of air intake in the system is the breakage of plastic quick connectors. The variable geometry intake manifold flaps often get stuck due to carbon deposits.
| E-Class W211 | 2002 - 2006 |
| S-Class W220 | 2002 - 2006 |
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
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 range of Mercedes OM651 diesel engines with a capacity of 1.8 and 2.2 liters has been produced since 2008 and installed in many modern models of the German company, including commercial vehicles. This powertrain is available in a huge number of different versions and modifications. The R4 family includes: OM616 OM601 OM604 OM611 OM640 OM646 OM654 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 2.3-liter turbocharged gasoline engine Honda K23A or K23A1 was produced from 2006 to 2012 and was exclusively installed in the luxury crossover Acura RDX first generation. This power unit is renowned for its reliability and excellent dynamic properties. The K series also includes engines: K20A and K24A.
The 1.8-liter turbocharged gasoline engine Audi CJEB 1.8 TFSI was produced from 2011 to 2015 and was installed in popular models of the company, such as the Audi A4 B8 and the Audi A5 8T. There are two other versions of this engine: CJED - 144 HP, 280 Nm and CJEE - 177 HP, 320 Nm. The EA888 gen3 series also includes: CJSB, CJSA, CJXC, CHHA, CHHB, CNCD and CXDA.