Overview
The M270 and M274 are turbocharged inline-four engines produced by Mercedes-Benz since 2011. They are the successor to the previous M266 and M271 engines respectively. The engine appeared on the Ward's 10 Best Engines list for 2017.
M270 refers to the transverse configuration for front-wheel drive vehicles, while M274 refers to the longitudinally-mounted layout for rear-wheel drive vehicles. Both engines are based on the same design with dual overhead camshafts, 4 valves per cylinder, variable valve timing, direct injection, and compliance with the EU6 emissions standard. A 2. 0 litres engine was introduced in September 2012 featuring an increased piston stroke up to 92 mm , increased performance figures, and a 9. 8:1 compression ratio. The M274 engine was also used on the Infiniti Q50 since 2014....
engine brand: mercedes-benz
production years: since 2011
engine lifespan: ~300 000
power: 129 – 156 (M 274 DE 16 AL)
156 – 245 (M 274 DE 20 AL)
279 – 333 together with electric motor
torque: 210 – 250 (M 274 DE 16 AL)
270 – 370 (M 274 DE 20 AL)
600 – 700 together with electric motor
fuel system: direct injection
fuel type: petrol
euro standards: EURO 5/6
timing drive: chain
hydraulic lifters: yes
phase regulator: yes
recommended engine oil: 5W-30, 5W-40
engine oil capacity: 6.0 – 7.0
displacement: 1595 (M 274 DE 16 AL)
1991 (M 274 DE 20 AL)
compression ratio: 10.3 (M 274 DE 16 AL)
9.8 (M 274 DE 20 AL)
turbocharging: yes
weight: 137
cylinder bore: 83
piston stroke: 73.7 (M 274 DE 16 AL)
92 (M 274 DE 20 AL)
cylinder block: aluminum R4
block head: aluminum 16v