| Mercedes-Benz M270/M274 | |
| Manufacturer: | Mercedes-Benz |
| Production: | 2011 – present |
| Predecessor: | M266 and M271 |
| Successor: | M260/M264 and M282 |
| Configuration: | Inline 4 |
| Displacement: | 1595cc (M270/M274 DE16) 1991cc (M270/M274 DE20) |
| Bore: | 83mm |
| Stroke: | 73.7mm (1.6 L) 92mm (2.0 L) |
| Block: | Aluminium alloy |
| Head: | Aluminium alloy |
| Valvetrain: | DOHC 4 valves x cyl. with VVT |
| Compression: | 10.3:1 (1.6 L engines) 9.8:1 (2.0 L engines) |
| Supercharger: | BorgWarner's e-Booster (2019–) |
| Turbocharger: | Single-turbo |
| Fuelsystem: | Direct injection |
| Fueltype: | Gasoline |
| Coolingsystem: | Water cooled |
| Power: | NaN0NaN0 |
| Torque: | NaN0NaN0 |
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.[1] 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.[2] A 19911NaN1 engine was introduced in September 2012 featuring an increased piston stroke up to 92mm, increased performance figures, and a 9.8:1 compression ratio.[3] The M274 engine was also used on the Infiniti Q50 since 2014.[4]
| Engine | Displacement | Power | Torque | Years |
|---|---|---|---|---|
| M270 DE16 LA R | 1595cc | 750NaN0 at 4,500–6,000 rpm | 1800NaN0 at 1,200–3,500 rpm | 2015– |
| 900NaN0 at 5,000 rpm | 2000NaN0 at 1,250–4,000 rpm | 2011– | ||
| M270 DE16 LA | 1150NaN0 at 5,000 rpm | 2500NaN0 at 1,250–4,000 rpm | ||
| M270 DE20 LA | 1991cc | 1150NaN0 at 5,000 rpm | 2700NaN0 at 1,250–4,000 rpm | 2013– |
| 1350NaN0 at 5,000 rpm | 3000NaN0 at 1,250–4,000 rpm | |||
| 1550NaN0 at 5,500 rpm | 3500NaN0 at 1,200–4,000 rpm | 2012– | ||
| 1600NaN0 at 5,500 rpm | 3500NaN0 at 1,200–4,000 rpm | 2015– |
75 kW version
90 kW version
115 kW version
135 kW version
155 kW version
160 kW version
| Engine | Displacement | Power | Torque | Years |
|---|---|---|---|---|
| M274 DE16 LAD274.910 | 1595cc | 950NaN0 at 5,000 rpm | 2100NaN0 at 1,200–4,000 rpm | 2015– |
| 1150NaN0 at 5,300 rpm | 2500NaN0 at 1,250–4,000 rpm | 2012– | ||
| M274 DE20 LAD274.920 | 1991cc | 1150NaN0 at 5,000 rpm | 2700NaN0 at 1,250–4,000 rpm | 2013– |
| 1350NaN0 at 5,500 rpm | 3000NaN0 at 1,200–4,000 rpm | |||
| 1550NaN0 at 5,500 rpm | 3500NaN0 at 1,200–4,000 rpm | |||
| 1800NaN0 at 5,500 rpm | 3700NaN0 at 1,300–4,000 rpm | 2015– | ||
| 1890NaN0 at 5,800 – 6,100 rpm | 2019– |
95 kW version
115 kW version
115 kW version
135 kW version
155 kW version
180 kW version