4-cylinder Mercedes M266 engines with a displacement ranging from 1.5 to 2.0 liters were produced from 2004 to 2012 and were exclusively installed in the compact A-Class model and its compact van counterpart, the B-Class. These power units were essentially just updated versions of the popular M166 engines. R4 Series: M111, M260, M264, M270, M271, M274, and M282.
| Exact capacity | 1498 cm³ |
| Power system | injector |
| Engine power | 95 HP |
| Torque | 140 nm |
| Engine block | aluminum R4 |
| Block head | aluminum 8v |
| Cylinder diameter | 83 mm |
| Piston stroke. | 69.2 mm |
| Compression ratio | 11 |
| Engine features | SOHC |
| Hydraulic compensator. | tak |
| Timing drive | chain |
| Timing phase adjuster | there is no |
| Turbocharging | there is no |
| What oils to use | 5.0 liters 5W-30 |
| Fuel type | 95 |
| Environmental class | EURO 4/5 |
| Approximate life expectancy | 270 000 HP |
| Exact capacity | 1699 cm³ |
| Power system | injector |
| Engine power | 116 HP |
| Torque | 155 nm |
| Engine block | aluminum R4 |
| Block head | aluminum 8v |
| Cylinder diameter | 83 mm |
| Piston stroke. | 78.5 mm |
| Compression ratio | 11 |
| Engine features | SOHC |
| Hydraulic compensator. | tak |
| Timing drive | chain |
| Timing phase adjuster | there is no |
| Turbocharging | there is no |
| What oils to use | 5.0 liters 5W-30 |
| Fuel type | 95 |
| Environmental class | EURO 4/5 |
| Approximate life expectancy | 280 000 HP |
| Exact capacity | 2034 cm³ |
| Power system | injector |
| Engine power | 136 HP |
| Torque | 185 nm |
| Engine block | aluminum R4 |
| Block head | aluminum 8v |
| Cylinder diameter | 83 mm |
| Piston stroke. | 94 mm |
| Compression ratio | 11 |
| Engine features | SOHC |
| Hydraulic compensator. | tak |
| Timing drive | chain |
| Timing phase adjuster | there is no |
| Turbocharging | there is no |
| What oils to use | 5.0 liters 5W-30 |
| Fuel type | 95 |
| Environmental class | EURO 4/5 |
| Approximate life expectancy | 300 000 HP |
| Exact capacity | 2034 cm³ |
| Power system | injector |
| Engine power | 193 HP |
| Torque | 280 nm |
| Engine block | aluminum R4 |
| Block head | aluminum 8v |
| Cylinder diameter | 83 mm |
| Piston stroke. | 94 mm |
| Compression ratio | 9.0 |
| Engine features | SOHC |
| Hydraulic compensator. | tak |
| Timing drive | chain |
| Timing phase adjuster | there is no |
| Turbocharging | BorgWarner K03 |
| What oils to use | 5.0 liters 5W-30 |
| Fuel type | 95 |
| Environmental class | EURO 4/5 |
| Approximate life expectancy | 250 000 HP |
| City | 10.2 litry |
| Route | 5.4 litry |
| Mixed | 7.2 litry |
The weight of the M266 engine according to the catalog is 90 kg. The engine number M266 is located at the junction of the block and the oil pan. This engine is very reliable, but it does not tolerate low-quality fuel. The injectors and throttle body quickly get dirty from bad gasoline. There are many complaints about lubricant leaks and fuel pump failure in the tank on specialized forums. The compressor clutch of the air conditioner and the generator are also considered weak points of the engine. Due to the design features, many operations are carried out only with the removal of the engine.
| A-Class W169 | 2004 - 2012 |
| B-Class W245 | 2005 - 2011 |
4-cylinder Mercedes M266 engines with a displacement ranging from 1.5 to 2.0 liters were produced from 2004 to 2012 and were exclusively installed in the compact A-Class model and its compact van counterpart, the B-Class. These power units were essentially just updated versions of the popular M166 engines. R4 Series: M111, M260, M264, M270, M271, M274, and M282.
The family of inline six-cylinder engines, Mercedes M103, was produced from 1985 to 1993 and was installed in many models of the company, such as W201, W124, and luxury roadsters R107. There were two different versions of the engine: E26 with a capacity of 2.6 liters and E30 with a capacity of 3.0 liters. The inline six-cylinder engine lineup also includes units: M104 and M256.
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 4.6-liter V8 engine from Mercedes, the M278, with dual turbocharging, was introduced in 2010 as a replacement for the well-known M273 engine, which was installed in popular E-Class, S-Class, and GL models. The DE 46 power unit is available in only one capacity, but in various power variants. The V8 engine lineup also includes the following units: M119, M113, M157, and M273.
The 2.0-liter V6 Mazda KF-DE engine was produced at the company's facilities from 1992 to 2002 and installed in European versions of popular models such as the 323, Xedos 6, and Xedos 9. The version with a power output of 160-170 HP, marked as KF-ZE, was used in vehicles for the Japanese market. The K-engine series includes: K8-DE, K8-ZE, KJ-ZEM, KL-DE, KL-G4, and KL-ZE.
The 1.6-liter Mazda Y6 or 1.6 CiTD engine was produced in two versions from 2004 to 2015: first-generation units with designations Y406, Y601, Y642, and Y646 were equipped with a 16-valve cylinder head, while second-generation engines with designations Y650, Y655, Y661, and Y6Y1 had an 8-valve cylinder head. The MZ-CD series also includes a diesel engine designated Y4.