Mercedes-Benz M270/M274 engine

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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.

Mercedes-Benz M270/M274
Overview
ManufacturerMercedes-Benz
Production2011 – present
Layout
ConfigurationInline 4
Displacement1.6 L (1,595 cc) (M270/M274 DE16)
2.0 L (1,991 cc) (M270/M274 DE20)
Cylinder bore83 mm (3.27 in)
Piston stroke73.7 mm (2.90 in) (1.6 L)
92 mm (3.62 in) (2.0 L)
Cylinder block materialAluminium alloy
Cylinder head materialAluminium alloy
ValvetrainDOHC 4 valves x cyl. with VVT
Compression ratio10.3:1 (1.6 L engines)
9.8:1 (2.0 L engines)
Combustion
SuperchargerBorgWarner's e-Booster (2019–)
TurbochargerSingle-turbo
Fuel systemDirect injection
Fuel typeGasoline
Cooling systemWater cooled
Output
Power output75–180 kW (101–241 hp; 102–245 PS)
Torque output180–370 N⋅m (133–273 lb⋅ft)
Chronology
PredecessorM266 and M271
SuccessorM260/M264 and M282

Design

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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 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.[3] The M274 engine was also used on the Infiniti Q50 since 2014.[4]

M270 engine

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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–
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
115 kW (154 hp; 156 PS)
at 5,000 rpm
250 N⋅m (184 lb⋅ft)
at 1,250–4,000 rpm
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–
135 kW (181 hp; 184 PS)
at 5,000 rpm
300 N⋅m (221 lb⋅ft)
at 1,250–4,000 rpm
155 kW (208 hp; 211 PS)
at 5,500 rpm
350 N⋅m (258 lb⋅ft)
at 1,200–4,000 rpm
2012–
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

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75 kW version

90 kW version

M270 DE16 LA

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M270 DE20 LA

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115 kW version

135 kW version

155 kW version

160 kW version

M274 engine

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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–
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–
135 kW (181 hp; 184 PS)
at 5,500 rpm
300 N⋅m (221 lb⋅ft)
at 1,200–4,000 rpm
155 kW (208 hp; 211 PS)
at 5,500 rpm
350 N⋅m (258 lb⋅ft)
at 1,200–4,000 rpm
180 kW (241 hp; 245 PS)
at 5,500 rpm
370 N⋅m (273 lb⋅ft)
at 1,300–4,000 rpm
2015–
189 kW (253 hp; 257 PS)
at 5,800 – 6,100 rpm
2019–

M274 DE16 LA

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95 kW version

115 kW version

M274 DE20 LA

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115 kW version

135 kW version

 

155 kW version

180 kW version

References

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  1. ^ "2017 Winner: Mercedes-Benz C300 2.0L Turbocharged DOHC 4-Cyl". WardsAuto. 2017-01-10. Archived from the original on 2018-07-03. Retrieved 2018-07-03.
  2. ^ "Introduction of the New Inline Engine Generation 4-Cylinder M 274". www.motor-talk.de. Archived from the original on 2018-07-03. Retrieved 2018-07-03.
  3. ^ "Mercedes Premium 4-Cyl. Engine Does Everything Well". WardsAuto. 2017-12-04. Archived from the original on 2018-07-03. Retrieved 2018-07-03.
  4. ^ "Infiniti Q50 2.0T: Review | PistonHeads". www.pistonheads.com. Archived from the original on 2018-07-03. Retrieved 2018-07-03.
  5. ^ China model only
  6. ^ "性能 | Q70L | 英菲尼迪中国". Archived from the original on 2018-10-31. Retrieved 2018-11-01.