Mercedes M254 engines with capacities of 1.5 and 2.0 liters were introduced for the first time in 2020 and are characterized by plasma-sprayed iron with a Nanoslide coating and an integrated starter-generator (ISG). Currently, these power units are only installed in the fifth generation of the popular C-Class model. R4 series: M166, M260, M264, M266, M270, M271, M274, and M282.
| Exact capacity | 1497 cm³ |
| Power system | direct injection |
| Engine power | 170 - 204 HP |
| Torque | 250 - 300 nm |
| Engine block | aluminum R4 |
| Block head | aluminum 16v |
| Cylinder diameter | 80.4 mm |
| Piston stroke. | 73.7 mm |
| Compression ratio | 10.5 |
| Engine features | ISG 48V |
| Hydraulic compensator. | tak |
| Timing drive | chain |
| Timing phase adjuster | Camtronic |
| Turbocharging | tak |
| What oils to use | 6.6 liters 5W-30 |
| Fuel type | 98 |
| Environmental class | EURO 6 |
| Approximate life expectancy | 260 000 HP |
| Exact capacity | 1991 cm³ |
| Power system | direct injection |
| Engine power | 258 HP |
| Torque | 400 nm |
| Engine block | aluminum R4 |
| Block head | aluminum 16v |
| Cylinder diameter | 83 mm |
| Piston stroke. | 92 mm |
| Compression ratio | 10.5 |
| Engine features | ISG 48V |
| Hydraulic compensator. | tak |
| Timing drive | chain |
| Timing phase adjuster | Camtronic |
| Turbocharging | tak |
| What oils to use | 6.6 liters 5W-30 |
| Fuel type | 98 |
| Environmental class | EURO 6 |
| Approximate life expectancy | 250 000 HP |
| City | 8.7 litry |
| Route | 4.7 litry |
| Mixed | 6.2 litry |
The weight of the M254 engine according to the catalog is 135 kg. The engine number M254 is located at the junction of the block and the gearbox. This turbocharged engine has just appeared and naturally there is no statistics of its breakdowns. All units of the modular series are afraid of detonation, so do not use gasoline below AI-98. As before, the weak point of the design of this series of engines is considered to be the Camtronic system. Here, direct fuel injection and valves will surely quickly become clogged with carbon deposits. This is exactly the type of engine that was planned to be installed in the new E-Class, but for some reason they refused.
| C-Class W206 | 2021 - CE |
The 2.0-liter Mercedes M260 engine has been produced at the Sindelfingen factory since 2018 and is installed in models with a transverse configuration of the power unit, such as the A-Class and B-Class. This engine has iron bushings, and its version with a longitudinal arrangement is indexed as M264. R4 series: M111, M166, M254, M266, M270, M271, M274, and M282.
Mercedes M274 petrol engines with a capacity of 1.6 and 2.0 liters have been produced by the company since 2011 and are installed in vehicles with longitudinally mounted engines, such as the C-Class and E-Class. Similar engines for models with a transverse powertrain layout have the M270 index. The R4 series includes: M102, M111, M166, M260, M264, M266, M271, and M282.
The V6 engines of the Mercedes M272 series, with a displacement ranging from 2.5 to 3.5 liters, were produced from 2004 to 2017 and installed in the most popular models of the group, such as W204, W211, and W221. There were also specially powerful versions of this engine called Sportmotor. Also belonging to the V6 lineup are the engines: M112 and M276.
The V8 engine series of Mercedes M119 with a capacity of 4.2-6.0 liters was produced from 1989 to 1999 and installed in several flagship models of the German company, such as W124, W140, and R129. There were also several more powerful versions of the AMG engine with a capacity of 6.1-6.4 liters. The V8 engine line also includes the following engines: M113, M157, M273, and M278.
The 3.0-liter V6 engine Peugeot ES9J4S or XFX was produced in France from 2000 to 2005 and was installed as a top-class engine in popular models of the brand such as 406 or 607. This power unit was slightly modernized in 2005 and received a new index ES9A. The ES engine line also includes units: ES9J4 and ES9A.
The 4.4-liter petrol engine Land Rover 448PN was manufactured by the company from 2004 to 2009 and was installed in popular off-road vehicles such as Range Rover, Range Rover Sport, and Discovery 3. This engine was specially developed for Land Rover by Jaguar engineers and is also known as AJ41. The AJ-V8 series includes the following power units: 306 horsepower, 428 horsepower, 508PN, and 508 horsepower.