Mercedes-Benz M260/M264 engine

The M260 and M264 are turbocharged inline-four engines produced by Mercedes-Benz since 2017. It is the successor to the M270 and M274 engine.

Mercedes-Benz M260/M264
Overview
ManufacturerMercedes-Benz
Production2017–
Layout
ConfigurationInline-four engine
Displacement1.5 L (1,497 cc) (M264)
2.0 L (1,991 cc) (M260, M264)
Cylinder bore80.4 mm (3.17 in)
83 mm (3.27 in)
Piston stroke73.7 mm (2.90 in)
92 mm (3.62 in)
Block materialAluminium alloy
Head materialAluminium alloy
ValvetrainDOHC 4 valves x cyl. with VVT
Compression ratio10.5:1
Combustion
SuperchargerBorgWarner's e-Booster (2019–)
TurbochargerSingle twin-scroll
Fuel systemDirect injection
Fuel typePetrol
Cooling systemWater cooled
Output
Power output135–220 kW (184–299 PS; 181–295 hp)
Torque output280–400 N⋅m (207–295 lb⋅ft)
Chronology
PredecessorM270/M274

Design

Both engines are based upon the outgoing M270 and the M274 respectively. Like the M270 and the M274, the M260 refers to the transverse configuration (for front-wheel drive models) while the M264 refers to the longitudinally mounted engine (for rear-wheel drive models).[1] They use dual overhead camshafts with 4 valves per cylinder, feature twin-scroll turbochargers,[2] and have particulate filters installed. M264 engines also have intake variable valve timing and a 48V system that powers the electric auxiliary compressor and integrated starter alternator. However, unlike M256 which uses a BorgWarner electric auxiliary compressor, the M264 has a belt-driven starter-alternator combo as well as a 48V electric water pump.[3]

Models
Engine Displacement Power Torque Years
M260 E20
DE LA		 2.0 L; 121.5 cu in (1,991 cc) 165 kW (224 PS; 221 hp)
at 5,500 rpm		 350 N⋅m (258 lb⋅ft)
at 1,800–4,000 rpm		 2017–
M264 E15
DEH LA		 1.5 L; 91.4 cu in (1,497 cc) 135 kW (184 PS; 181 hp)
at 5,800–6,100 rpm		 280 N⋅m (207 lb⋅ft)
at 3,000–4,000 rpm		 2017–
1.5 L; 91.4 cu in (1,497 cc) 116 kW (158 PS; 156 hp)[4] 250 N⋅m (184 lb⋅ft)
M264 E20
DEH LA		 2.0 L; 121.5 cu in (1,991 cc) 145 kW (197 PS; 194 hp)
at 5,800–6,100 rpm		 320 N⋅m (236 lb⋅ft)
at 1,650–4,000 rpm		 2019–
190 kW (258 PS; 255 hp)
at 5,800–6,100 rpm		 370 N⋅m (273 lb⋅ft)
at 1,800–4,000 rpm		 2017–
220 kW (299 PS; 295 hp)
at 5,800–6,100 rpm		 400 N⋅m (295 lb⋅ft)
at 3,000–4,000 rpm		 2017–

M260 E20 DE LA

M264 E15 DEH LA
  • 2018–present W205 C200[7]
  • 2019–present W213 E180 (without EQ Boost for Pakistan, Singapore & Egypt)
  • 2020–present C257 CLS260

M264 E20 DEH LA

References
  1. "Mercedes-Benz M260 and M264 engines". australiancar.reviews. Retrieved 2018-07-03.
  2. "The new Mercedes A-Class will debut gasoline engines, Car News!". Like Automotive. 2017-08-10. Retrieved 2018-07-03.
  3. "Mercedes brings 48-volt electrical system to 2018 E-class". newatlas.com. Retrieved 2018-07-03.
  4. "Tested: 2019 Mercedes-Benz C180 AMG Line – NamWheels". Retrieved 2020-09-02.
  5. "Mercedes-Benz A-Class Coming To America With New, More Potent Engine". CarBuzz. Retrieved 2018-07-03.
  6. "Mercedes-AMG A35 revealed with 302bhp | Autocar". www.autocar.co.uk. Retrieved 2018-10-03.
  7. Kable, Greg (2018-02-12). "Facelifted Mercedes-Benz C-Class revealed - Facelifted Mercedes-Benz C-Class revealed". Drive. Retrieved 2018-07-03.
  8. Panait, Mircea (2017-10-27). "2018 Mercedes-Benz E 350 Coupe and Cabrio Introduce Mild-Hybrid M 264 Engine". autoevolution. Retrieved 2018-07-03.
  9. "Mercedes-Benz C-Class to get new engines and tech in 2018 facelift | Autocar". www.autocar.co.uk. Retrieved 2018-07-03.
  10. "Mercedes CLS pre-production (2017) ride review". CAR Magazine. Retrieved 2018-07-03.
  11. "2019 W213 Mercedes-Benz E200 SportStyle, E 300 Exclusive launched - new engines, kit; from RM330k". Paul Tan's Automotive News. 2019-03-06. Retrieved 2019-03-18.
  12. https://www.mercedes-benz.com.cn/vehicles/sedan/s-class.html
  13. https://www.motor1.com/news/443156/mercedes-g350-revealed-china/
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