Mercedes-Benz M270/M274 engine

Mercedes-Benz M270/M274
Overview
Manufacturer Mercedes-Benz
Production 2011–
Layout
Configuration Inline-four engine
Displacement 1.6 L (1,595 cc)
2.0 L (1,991 cc)
Cylinder bore 83.0 mm
Piston stroke 73.7 mm (1.6 L engines)
92.0 mm (2.0 L engines)
Cylinder block alloy Aluminium alloy
Cylinder head alloy Aluminium alloy
Valvetrain DOHC
Compression ratio 10.3:1 (1.6 L engines)
9.8:1 (2.0 L engines)
Combustion
Turbocharger Single-turbo
Fuel system Direct injection
Fuel type Petrol
Chronology
Predecessor Mercedes-Benz M266 engine
Mercedes-Benz M271 engine
Successor Mercedes-Benz M260/M264 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.

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.[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 2.0-litre engine was introduced in September 2012 featuring an increased piston stroke (92.0 mm), increased performance figures, and a 9.8:1 compression ratio.[3] The M274 engine was also used on the Infiniti Q50 since 2014.[4]

M270 engine

Engine Displacement Power Torque Years
M270 DE16
LA R		 1,595 cc (97 cu in) 75 kW (101 hp)
@ 4,500–6,000 rpm		 180 N⋅m (133 lb⋅ft)
@ 1,200–3,500 rpm		 2015–
90 kW (121 hp)
@ 5,000 rpm		 200 N⋅m (148 lb⋅ft)
@ 1,250–4,000 rpm		 2011–
M270 DE16
LA		 115 kW (154 hp)
@ 5,000 rpm		 250 N⋅m (184 lb⋅ft)
@ 1,250–4,000 rpm
M270 DE20
LA		 1,991 cc (121 cu in) 115 kW (154 hp)
@ 5,000 rpm		 270 N⋅m (199 lb⋅ft)
@ 1,250–4,000 rpm		 2013–
135 kW (181 hp)
@ 5,000 rpm		 300 N⋅m (221 lb⋅ft)
@ 1,250–4,000 rpm
155 kW (208 hp)
@ 5,500 rpm		 350 N⋅m (258 lb⋅ft)
@ 1,200–4,000 rpm		 2012–
160 kW (215 hp)
@ 5,500 rpm		 350 N⋅m (258 lb⋅ft)
@ 1,200–4,000 rpm		 2015–

M270 DE16 LA R

75 kW version

90 kW version

M270 DE16 LA

M270 DE20 LA

115 kW version

135 kW version

155 kW version


160 kW version

M274 engine

Engine Displacement Power Torque Years
M274 DE16
LA		 1,595 cc (97 cu in) 95 kW (127 hp)
@ 5,000 rpm		 210 N⋅m (155 lb⋅ft)
@ 1,200–4,000 rpm		 2015–
115 kW (154 hp)
@ 5,300 rpm		 250 N⋅m (184 lb⋅ft)
@ 1,250–4,000 rpm		 2012–
M274 DE20
LA		 1,991 cc (121 cu in) 115 kW (154 hp)
@ 5,000 rpm		 270 N⋅m (199 lb⋅ft)
@ 1,250–4,000 rpm		 2013–
135 kW (181 hp)
@ 5,500 rpm		 300 N⋅m (221 lb⋅ft)
@ 1,200–4,000 rpm
155 kW (208 hp)
@ 5,500 rpm		 350 N⋅m (258 lb⋅ft)
@ 1,200–4,000 rpm
180 kW (241 hp)
@ 5,500 rpm		 370 N⋅m (273 lb⋅ft)
@ 1,300–4,000 rpm		 2015–

M274 DE16 LA

95 kW version

115 kW version

M274 DE20 LA

115 kW version

135 kW version

155 kW version

180 kW version

References

  1. ↑ "2017 Winner: Mercedes-Benz C300 2.0L Turbocharged DOHC 4-Cyl". WardsAuto. 2017-01-10. Retrieved 2018-07-03.
  2. ↑ "Introduction of the New Inline Engine Generation 4-Cylinder M 274". www.motor-talk.de. Retrieved 2018-07-03.
  3. ↑ "Mercedes Premium 4-Cyl. Engine Does Everything Well". WardsAuto. 2017-12-04. Retrieved 2018-07-03.
  4. ↑ "Infiniti Q50 2.0T: Review | PistonHeads". www.pistonheads.com. Retrieved 2018-07-03.
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