| Mercedes-Benz M281 | |
| Manufacturer: | Mercedes-Benz |
| Production: | 2014– |
| Configuration: | Straight-three engine |
| Bore: | 72.2 mm |
| Block: | Aluminium alloy |
| Head: | Aluminium alloy |
| Valvetrain: | DOHC |
| Turbocharger: | Single-turbo (M281 E09 LA) |
| Fuelsystem: | Multi-point injection |
| Fueltype: | Petrol |
The M281 is a straight-three petrol engine produced by Mercedes-Benz since 2014.
The M281 uses an aluminium alloy cylinder block and head, and features a dual overhead camshaft with 4 valves per cylinder.[1] It is transversely mounted and is available in three configurations: naturally aspirated with 450NaN0 or 530NaN0, or as a turbocharged 660NaN0 version.[2] [3] These engines are used in Smart, Renault, Nissan, and Dacia models due to Daimler A.G.'s involvement in the Renault–Nissan–Mitsubishi Alliance since 2010.[4]
| Engine | Displacement | Power | Torque | Years | |
|---|---|---|---|---|---|
| M281 E10 R | 9990NaN0 | 450NaN0 at 6,000 rpm | 870NaN0 at 3,500 rpm | 2014– | |
| M281 E10 | 520NaN0 at 6,000 rpm | 910NaN0 at 2,850 rpm | |||
| M281 E09 LA turbocharged | 8980NaN0 | 660NaN0 at 5,500 rpm | 1350NaN0 at 2,500 rpm | ||
| M281 E09 LA turbocharged | 8980NaN0 | 800NaN0 at 5,750 rpm | 1700NaN0 at 2,000 rpm | 2016–2018 | |
| M281 E09 LA turbocharged | 8980NaN0 | 920NaN0 at 5,550 rpm | 2000NaN0 at 2,000 rpm |