Mercedes-Benz M281 | |
---|---|
Overview | |
Manufacturer | Mercedes-Benz |
Also called | Renault H4D Renault H4B Nissan BR |
Production | 2014– |
Layout | |
Configuration | Straight-three engine |
Displacement | 1.0 L (999 cc) 0.9 L (898 cc) (M281 E09 LA) |
Cylinder bore | 72.2 mm |
Piston stroke | 81.3 mm 73.1 mm (M281 E09 LA) |
Block material | Aluminium alloy |
Head material | Aluminium alloy |
Valvetrain | DOHC |
Compression ratio | 10.5:1 9.5:1 (M281 E09 LA) |
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 |
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