The M281 is a straight-three petrol engine produced by Mercedes-Benz since 2014.
Design The M281 uses an aluminium alloy cylinder block and head, and features a dual overhead camshaft with 4 valves per cylinder. It is transversely mounted and is available in three configurations: naturally aspirated with or , or as a turbocharged version. 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.
Models EngineDisplacementPowerTorqueYearsM281 E10 R at 6,000 rpm at 3,500 rpm2014–M281 E10 at 6,000 rpm at 2,850 rpmM281 E09 LA turbocharged at 5,500 rpm at 2,500 rpmM281 E09 LA turbocharged at 5,750 rpm at 2,000 rpm2016–2018|M281 E09 LA turbocharged at 5,550 rpm at 2,000 rpm
M281 E10 R 2014–2019 C453/A453 Smart Fortwo 2014–2019 W453 Smart Forfour
M281 E10 (Nissan HR10DE/Renault H4D) 2014–2019 C453/A453 Smart Fortwo 2014–2019 W453 Smart Forfour 2014–present Renault Twingo III 2017–2020 Dacia Sandero II 1.0 SCe 2017–2020 Dacia Logan II 1.0 SCe 2017–2022 K14 Nissan Micra 1.0
M281 E09 LA (Nissan HR09DET/Renault H4Bt) 2014–2019 C453/A453 Smart Fortwo 2014–2019 W453 Smart Forfour 2014–present Renault Twingo III 2014–2020 Dacia Sandero II 0.9 TCe 2014–2020 Dacia Logan II 0.9 TCe 2017–2022 K14 Nissan Micra 1.0 2014-2019 Renault Clio IV 0.9
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