Since 2018, the Sindelfingen plant has been producing the 2.0-liter Mercedes M260 engine, which is fitted to vehicles with a transverse powertrain, like the A-Class and B-Class. The longitudinal version of this motor has the M264 index and cast iron liners.
M102, M111, M133, M139, M166, M200, M254, M260, M264, M266, M270, M271, M274, and M282 are the R4 Mercedes engines.
Specifications
| Production years | since 2018 |
| Displacement, cc | 1991 |
| Fuel system | direct injection |
| Power output, hp | 190 – 306 |
| Torque output, Nm | 300 – 400 |
| Cylinder block | aluminum R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 83 |
| Piston stroke, mm | 92 |
| Compression ratio | 10.5 |
| Features | BSG 48V |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | Camtronic |
| Turbocharging | IHI AL0069 |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 5.8 |
| Fuel type | petrol |
| Euro standards | EURO 6 |
| Fuel consumption, L/100 km (for Mercedes-Benz A250 2020) — city — highway — combined |
8.8 5.3 6.6 |
| Engine lifespan, km | ~250 000 |
| Weight, kg | 135 |
The engine was installed on:
- Mercedes A-Class W177 since 2018;
- Mercedes B-Class W247 since 2019;
- Mercedes CLA-Class C118 since 2019;
- Mercedes CLA-Class X118 since 2019;
- Mercedes GLA-Class H247 since 2020;
- Mercedes GLB-Class X247 since 2019.
Disadvantages of the Mercedes M260 engine
Use high-quality fuel because detonation can cause damage to pistons.
The Camtronic system occasionally fails, but when it does, the cost of repair is very high.
Carbon buildup on the intake valves and variations in engine speed are caused by the direct injection fault.
This line of gasoline engines has an intriguing resource: a particulate filter.