| Mercedes-Benz M281 | |
|---|---|
 | |
| Overview | |
| Manufacturer | Mercedes-Benz |
| Also called |
|
| Production | 2014– |
| Layout | |
| Configuration | Straight-three engine |
| Displacement |
|
| Cylinder bore | 72.2 mm |
| Piston stroke |
|
| Cylinder block material | Aluminium alloy |
| Cylinder head material | Aluminium alloy |
| Valvetrain | DOHC |
| Compression ratio |
|
| Combustion | |
| Turbocharger | Single-turbo (M281 E09 LA) |
| Fuel system | Multi-point injection |
| Fuel type | 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 45 kW (60 hp) or 53 kW (71 hp), or as a turbocharged 66 kW (89 hp) 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 | 999 cc (61 cu in) | 45 kW (60 hp) at 6,000 rpm |
87 N⋅m (64 lb⋅ft) at 3,500 rpm |
2014– |
| M281 E10 | 52 kW (70 hp) at 6,000 rpm |
91 N⋅m (67 lb⋅ft) at 2,850 rpm | ||
| M281 E09 LA turbocharged |
898 cc (55 cu in) | 66 kW (89 hp) at 5,500 rpm |
135 N⋅m (100 lb⋅ft) at 2,500 rpm | |
| M281 E09 LA turbocharged |
898 cc (55 cu in) | 80 kW (107 hp) at 5,750 rpm |
170 N⋅m (125 lb⋅ft) at 2,000 rpm |
2016–2018| |
| M281 E09 LA turbocharged |
898 cc (55 cu in) | 92 kW (123 hp) at 5,550 rpm |
200 N⋅m (148 lb⋅ft) at 2,000 rpm |
