Mercedes-Benz M176/M177/M178 engine

Mercedes-Benz M176/M177/M178
Overview
Manufacturer Daimler AG
Production 2015—present
Layout
Configuration V8
Displacement 3,982 cc (243.0 cu in)
Cylinder bore 83 mm (3.3 in)
Piston stroke 92 mm (3.6 in)
Cylinder block alloy Cast-aluminum, closed deck
Valvetrain DOHC
RPM range
Redline 7000 rpm
Combustion
Fuel system Direct Injection
Fuel type Gasoline
Oil system
  • M178: Dry-sump
  • M177 and M176: Wet sump
Chronology
Predecessor Mercedes-Benz M278 engine,Mercedes-Benz M157 engine

The M176/M177/M178 is a gasoline V8 engine line-up designed by Mercedes-AMG. They are replacing the outgoing Mercedes-Benz M278 engine and Mercedes-Benz M156 engine line-up.

The V8 engine is the further development of the Mercedes-AMG M133 engine, two blocks sharing a single crankshaft.[1] However, the V8s are twin-turbocharged, with the BorgWarner turbochargers positioned between the two cylinder heads in a "hot-V" configuration. The injectors are Bosch's new piezo-electric direct fuel injectors, and they deliver five squirts of fuel per combustion cycle.[2]

Within the family, the M178 and M177 variations are used in Mercedes-AMG vehicles and assembled in the AMG base at Affalterbach, while the M176 is used in mainstream Mercedes-Benz models and assembled in Mercedes's Untertürkheim plant outside Stuttgart[3], starting with the 2015 G500 and G500 4X42.[4]

M176

The M176 is the version used in mainstream Mercedes-Benz models, debuting in 2015 for the Mercedes G500 and G500 4x42.[4]

Applications

  • Mercedes-Benz G500 and G500 4x42
  • Mercedes-Benz S560
  • Mercedes-Maybach S560

M177

The M177 was the first variation[5] released in the Mercedes-AMG C63. In contrast to the M178, this version of the engine uses wet-sump lubrication. In the C63 and GLC63 applications, the turbos are single-scrolled, whereas in E63 and S63 are twin-scrolled and different exhaust manifold. The twin-scroll application also features cylinder deactivation.[6] This engine is also used in the Aston Martin DB11 and the Aston Martin V8 Vantage (2019), as part of the agreement between Aston Martin and Daimler AG that began in 2013.[7][8][9][10]

Applications

  • Mercedes-AMG C63 and C63 S
  • Mercedes-AMG E63 and E63 S
  • Mercedes-AMG S63
  • Mercedes-AMG GLC63 and GLC63 S
  • Mercedes-AMG GT63 and GT63 S 4-Door
  • Aston Martin DB11 V8
  • Aston Martin Vantage

M178

The M178 was the second variation in the family to be released. Initially released in the Mercedes-AMG GT and GT S, it had 345 kW (463 hp)and 375 kW (503 hp) respectively. Later versions have been added for the GT C and GT R models and higher output.[2]

Applications

See also

List of Mercedes-Benz engines

References

  1. ↑ https://www.autoevolution.com/news/mercedes-amg-gt-m178-engine-specs-unveiled-videophoto-gallery-82472.html
  2. 1 2 "In-Depth With the 2016 Mercedes-AMG GT's New V-8: So Long, Natural Aspiration—Hello, Twin Turbos!". Car and Driver. 2014-07-02. Retrieved 2017-12-07.
  3. ↑ http://blog.mercedes-benz-passion.com/2016/10/mercedes-benz-bringt-2017-neue-generation-von-vier-und-sechszylinder-reihenmotoren-bei-benzin-und-diesel-auf-den-markt/
  4. 1 2 "New Engines Highlight Daimler's Plans for 2018 S-class Update". Car and Driver. 2016-11-14. Retrieved 2017-12-07.
  5. ↑ www.auto-motor-und-sport.de/news/mercedes-c63-amg-auf-dem-autosalon-in-paris-2014-die-power-versionen-der-neuen-c-klasse-5098003.html
  6. ↑ "OMG AMG: We Go Inside Mercedes-AMG Headquarters in Affalterbach". Car and Driver. Retrieved 2017-12-07.
  7. ↑ Kew, Ollie (25 July 2013). "Aston Martin to use Mercedes AMG V8 engines (2013)". CAR Magazine. Retrieved 19 March 2018.
  8. ↑ Edelstein, Stephen (25 July 2013). "Germany and England bury the hatchet: Aston Martin and Mercedes-Benz finalize partnership". Digital Trends. Retrieved 19 March 2018.
  9. ↑ Hayward, Matthew (19 December 2013). "V8 advantage – Aston Martin launches 'more affordable' V8 DB11 grand tourer". Daily Telegraph. Retrieved 18 March 2018.
  10. ↑ Panait, Mircea (2017-11-16). "2019 Aston Martin Vantage Drifting Teaser Is Slow-Motion Goodness". autoevolution. Retrieved 2018-03-18.
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