The Mercedes M273 V8 engine series with a capacity of 4.7 and 5.5 liters was produced from 2005 to 2015 and installed in many expensive models of the German company, such as the W211, W221, and X164. These engines have gained a reputation as some of the most problematic engines in the company. The V8 engine lineup also includes the M119, M113, M157, and M278 engines.
| Exact capacity | 4663 cm³ |
| Power system | distributed injection |
| Engine power | 340 HP |
| Torque | 460 nm |
| Engine block | aluminum V8 |
| Block head | aluminum 32v |
| Cylinder diameter | 92.9 mm |
| Piston stroke. | 86 mm |
| Compression ratio | 10.7 |
| Engine features | there is no |
| Hydraulic compensator. | tak |
| Timing drive | chain |
| Timing phase adjuster | on intake and exhaust. |
| Turbocharging | there is no |
| What oils to use | 8.5 liters 5W-40 |
| Fuel type | 95 |
| Environmental class | EURO 4/5 |
| Approximate life expectancy | 300 000 HP |
| Exact capacity | 5461 cm³ |
| Power system | distributed injection |
| Engine power | 388 HP |
| Torque | 530 nm |
| Engine block | aluminum V8 |
| Block head | aluminum 32v |
| Cylinder diameter | 98 mm |
| Piston stroke. | 90.5 mm |
| Compression ratio | 10.7 |
| Engine features | there is no |
| Hydraulic compensator. | tak |
| Timing drive | chain |
| Timing phase adjuster | on intake and exhaust. |
| Turbocharging | there is no |
| What oils to use | 8.5 liters 5W-30 |
| Fuel type | 95 |
| Environmental class | EURO 4/5 |
| Approximate life expectancy | 350 000 HP |
| City | 17.4 litry |
| Route | 8.5 litry |
| Mixed | 11.7 litry |
The weight of the M273 engine according to the catalog is 205 kg. The engine number M273 is located at the junction of the block and the gearbox. The unit is considered problematic and its weak point is the camshaft mechanism. Wear of the intermediate gear leads to the replacement of the timing belt kit before reaching 100,000 km. A common engine failure is the wedging of the flaps in the exhaust manifold. Very often, oil leaks through the plastic plugs of the cylinder heads. Engine overheating can cause detonation and damage to the combustion chamber walls.
| CL-Class C216 | 2006 - 2010 |
| CLK-Class C209 | 2006 - 2010 |
| CLS-Class W219 | 2006 - 2010 |
| E-Class W211 | 2006 - 2009 |
| E-Class W212 | 2009 - 2011 |
| E-Class C207 | 2009 - 2011 |
| S-Class W221 | 2005 - 2011 |
| SL-Class R230 | 2006 - 2011 |
| G-Class W463 | 2007 - 2015 |
| GL-Class X164 | 2006 - 2012 |
| ML-Class W164 | 2007 - 2011 |
| R-Class W251 | 2007 - 2014 |
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.
The family of six-cylinder engines Mercedes M104 was produced from 1989 to 1998 in three versions: E28 with a capacity of 2.8 liters, E30 with a capacity of 3.0 liters, and E32 with a capacity of 3.2 liters. There were also powerful AMG versions labeled E34 and E36 with capacities of 3.4 and 3.6 liters respectively. The R6 engine lineup also includes units: M103 and M256.
The V8 engine series Mercedes M113 with a capacity of 4.3 and 5.0 liters was produced from 1997 to 2008 and installed in the largest and most expensive cars of the company, such as models W211, W219, W220, and W251. There was also a more powerful version of the engine with a capacity of 5.4 liters for AMG models. The V8 engine lineup also includes: M119, M157, M273, and M278.
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 2.7-liter 5-cylinder inline engine of the Mercedes OM612 was produced from 1999 to 2007 and installed in popular models of the company such as the W203, W210, W163, and Gelandewagen. There was also an AMG version of this diesel engine with a capacity of 3.0 liters and a power output of 230 hp. In the R5 engine lineup, there are also diesel engines: OM617, OM602, OM605, and OM647.