# Mercedes-Benz M270/M274 engine

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.

## Design

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 (1,991 cc) engine was introduced in September 2012 featuring an increased piston stroke up to 92 mm (3.62 in), increased performance figures, and a 9.8:1 compression ratio. The M274 engine was also used on the Infiniti Q50 since 2014.

## M270 engine

| Engine | Displacement | Power | Torque | Years |
| M270 DE16 LA R | 1.6 L; 97.3 cu in (1,595 cc) | 75 kW (101 hp; 102 PS) at 4,500–6,000 rpm | 180 N⋅m (133 lb⋅ft) at 1,200–3,500 rpm | 2015– |
| M270 DE16 LA R | 1.6 L; 97.3 cu in (1,595 cc) | 90 kW (121 hp; 122 PS) at 5,000 rpm | 200 N⋅m (148 lb⋅ft) at 1,250–4,000 rpm | 2011– |
| M270 DE16 LA | 1.6 L; 97.3 cu in (1,595 cc) | 115 kW (154 hp; 156 PS) at 5,000 rpm | 250 N⋅m (184 lb⋅ft) at 1,250–4,000 rpm | 2011– |
| M270 DE20 LA | 2.0 L; 121.5 cu in (1,991 cc) | 115 kW (154 hp; 156 PS) at 5,000 rpm | 270 N⋅m (199 lb⋅ft) at 1,250–4,000 rpm | 2013– |
| M270 DE20 LA | 2.0 L; 121.5 cu in (1,991 cc) | 135 kW (181 hp; 184 PS) at 5,000 rpm | 300 N⋅m (221 lb⋅ft) at 1,250–4,000 rpm | 2013– |
| M270 DE20 LA | 2.0 L; 121.5 cu in (1,991 cc) | 155 kW (208 hp; 211 PS) at 5,500 rpm | 350 N⋅m (258 lb⋅ft) at 1,200–4,000 rpm | 2012– |
| M270 DE20 LA | 2.0 L; 121.5 cu in (1,991 cc) | 160 kW (215 hp; 218 PS) at 5,500 rpm | 350 N⋅m (258 lb⋅ft) at 1,200–4,000 rpm | 2015– |

### M270 DE16 LA R

75 kW version
* 2015–2018 A 160 (W176)
* 2015–2018 B 160 (W246)
90 kW version
* 2011–2018 B 180 (W246)
* 2012–2018 A 180 (W176)
* 2013–2019 CLA 180 (C117)
* 2015–2019 GLA 180 (X156)

### M270 DE16 LA

* 2011–2018 B 200 (W246)
* 2012–2018 A 200 (W176)
* 2013–2019 CLA 200 (C117)
* 2014–2019 GLA 200 (X156)

### M270 DE20 LA

115 kW version
* 2013–2018 B 200 Natural Gas Drive (W246)
135 kW version
* 2013–2018 B 220 4MATIC (W246)
* 2014–2018 A 220 4MATIC (W176)
* 2016–2018 CLA 220 4MATIC (C117)
155 kW version
* 2012–2018 A 250 (W176)
* 2012–2018 B 250 (W246)
* 2013–2019 CLA 250 (C117)
* 2013–2019 GLA 250 (X156)
* 2015–2019 Infiniti Q30
* 2016–2019 Infiniti QX30
160 kW version
* 2015–2018 A 250 Sport (W176)
* 2015–2019 CLA 250 Sport (C117)

## M274 engine

| Engine | Displacement | Power | Torque | Years |
| M274 DE16 LA D274.910 | 1.6 L; 97.3 cu in (1,595 cc) | 95 kW (127 hp; 129 PS) at 5,000 rpm | 210 N⋅m (155 lb⋅ft) at 1,200–4,000 rpm | 2015– |
| M274 DE16 LA D274.910 | 1.6 L; 97.3 cu in (1,595 cc) | 115 kW (154 hp; 156 PS) at 5,300 rpm | 250 N⋅m (184 lb⋅ft) at 1,250–4,000 rpm | 2012– |
| M274 DE20 LA D274.920 | 2.0 L; 121.5 cu in (1,991 cc) | 115 kW (154 hp; 156 PS) at 5,000 rpm | 270 N⋅m (199 lb⋅ft) at 1,250–4,000 rpm | 2013– |
| M274 DE20 LA D274.920 | 2.0 L; 121.5 cu in (1,991 cc) | 135 kW (181 hp; 184 PS) at 5,500 rpm | 300 N⋅m (221 lb⋅ft) at 1,200–4,000 rpm | 2013– |
| M274 DE20 LA D274.920 | 2.0 L; 121.5 cu in (1,991 cc) | 155 kW (208 hp; 211 PS) at 5,500 rpm | 350 N⋅m (258 lb⋅ft) at 1,200–4,000 rpm | 2013– |
| M274 DE20 LA D274.920 | 2.0 L; 121.5 cu in (1,991 cc) | 180 kW (241 hp; 245 PS) at 5,500 rpm | 370 N⋅m (273 lb⋅ft) at 1,300–4,000 rpm | 2015– |
| M274 DE20 LA D274.920 | 2.0 L; 121.5 cu in (1,991 cc) | 189 kW (253 hp; 257 PS) at 5,800 – 6,100 rpm | 370 N⋅m (273 lb⋅ft) at 1,300–4,000 rpm | 2019– |

### M274 DE16 LA

95 kW version
* 2015–2019 C 160 (W205)
115 kW version
* 2012–2013 C 180 (W204)
* 2014–2019 C 180 (W205)
* 2013–2016 E 180 (W212)
* 2015–2020 SLC 180 (R172)

### M274 DE20 LA

115 kW version
* 2013–2016 E 200 Natural Gas Drive (W212)
135 kW version
* 2013–2016 E 200 (W212)
* 2013–2016 GLK 200 (X204)
* 2014–2018 C 200 (W205)
* 2015–2020 SLC 200 (R172)
* 2016-2023 E 200 (W213)
155 kW version
* 2013–2016 E 250 (W212)
* 2013–2016 GLK 250 (X204)
* 2016–2019 GLC 250 4MATIC (X253)
* 2014–2018 C 250 (W205)
* 2015–2018 C 350e (W205)
* 2018–2021 C 300e (W205)
* 2015–2019 V37 Q50/Nissan Skyline (2014-2019; 200GT-t DBA-ZV37/DBA-YV37)
* 2016–2018 E 250 (W213)
* 2016–2018 E 350e (W213)
* 2018–2023 E 300e (W213)
* 2015–2019 GLC 350e 4MATIC (X253)
* 2019–2022 GLC 300e 4MATIC (X253)
* 2016–present V 250 (W447) (Chinese market)
* 2016-2023 Metris (W447)
* 2016–present CV37 Q60
* 2015–2019 Y51 Q70
180 kW version
* 2015–2018 C 300 (W205)
* 2015–2018 E 300 (W213)
* 2015–2019 SLC 300 (R172)
* 2015–2019 GLC 300 / GLC 300 4MATIC (X253)