Mercedes M266 engines
Content
Mercedes M4 266-cylinder engines from 1.5 to 2.0 liters were produced from 2004 to 2012 and were installed only on the compact A-Class model and the similar B-Class compact MPV. These power units were essentially just an updated version of the popular M166 engines.
R4 series: M111, M260, M264, M270, M271, M274 and M282.
Specifications of Mercedes M266 engines
| Exact volume | 1498 cm³ |
| Supply system | injector |
| Internal combustion engine power | 95 hp |
| Torque | 140 Nm |
| Cylinder block | aluminum R4 |
| Block head | aluminum 8v |
| Bore | 83 mm |
| Piston stroke | 69.2 mm |
| Compression ratio | 11 |
| Features of the internal combustion engine | SOHC |
| Hydraulic compensators | Yes |
| Timing drive | chain |
| Phase regulator | no |
| Turbocharging | no |
| What kind of oil to pour | 5.0 liters 5W-30 |
| fuel type | AI-95 |
| Environmental class | EURO 4/5 |
| Approximate resource | 270 000 km |
| Exact volume | 1699 cm³ |
| Supply system | injector |
| Internal combustion engine power | 116 hp |
| Torque | 155 Nm |
| Cylinder block | aluminum R4 |
| Block head | aluminum 8v |
| Bore | 83 mm |
| Piston stroke | 78.5 mm |
| Compression ratio | 11 |
| Features of the internal combustion engine | SOHC |
| Hydraulic compensators | Yes |
| Timing drive | chain |
| Phase regulator | no |
| Turbocharging | no |
| What kind of oil to pour | 5.0 liters 5W-30 |
| fuel type | AI-95 |
| Environmental class | EURO 4/5 |
| Approximate resource | 280 000 km |
| Exact volume | 2034 cm³ |
| Supply system | injector |
| Internal combustion engine power | 136 hp |
| Torque | 185 Nm |
| Cylinder block | aluminum R4 |
| Block head | aluminum 8v |
| Bore | 83 mm |
| Piston stroke | 94 mm |
| Compression ratio | 11 |
| Features of the internal combustion engine | SOHC |
| Hydraulic compensators | Yes |
| Timing drive | chain |
| Phase regulator | no |
| Turbocharging | no |
| What kind of oil to pour | 5.0 liters 5W-30 |
| fuel type | AI-95 |
| Environmental class | EURO 4/5 |
| Approximate resource | 300 000 km |
| Exact volume | 2034 cm³ |
| Supply system | injector |
| Internal combustion engine power | 193 hp |
| Torque | 280 Nm |
| Cylinder block | aluminum R4 |
| Block head | aluminum 8v |
| Bore | 83 mm |
| Piston stroke | 94 mm |
| Compression ratio | 9.0 |
| Features of the internal combustion engine | SOHC |
| Hydraulic compensators | Yes |
| Timing drive | chain |
| Phase regulator | no |
| Turbocharging | BorgWarner K03 |
| What kind of oil to pour | 5.0 liters 5W-30 |
| fuel type | AI-95 |
| Environmental class | EURO 4/5 |
| Approximate resource | 250 000 km |
The weight of the M266 engine in the catalog is 90 kg
Engine number M266 is located at the junction of the block with the pallet
Fuel consumption of internal combustion engine Mercedes M266
On the example of a 170 Mercedes A2008 with a manual transmission:
| City | 10.2 liters |
| Track | 5.4 liters |
| Mixed | 7.2 liters |
What cars were equipped with M266 engines
| A-Class W169 | 2004 – 2012 |
| B-Class W245 | 2005 – 2011 |
Disadvantages, breakdowns and problems of the internal combustion engine M266
With reliability, this engine is doing great, but it does not tolerate low-quality fuel
From bad gasoline, the nozzles and the throttle assembly quickly become dirty here.
There are a lot of complaints on specialized forums about lubricant leaks and a breakdown of the fuel pump in the tank
Another weak point of the motor is the air conditioning compressor clutch and generator
Due to the design features, many operations are carried out only with the extraction of the internal combustion engine
