Mercedes-Benz M176/M177/M178 engine

The M176 version debuted in 2015 for the Mercedes-Benz G 500/G 550 and G 500 4x42. In 2019, M176 was equipped with EQ Boost mild hybrid 48V electrical system, producing additional output and of torque. This mild hybrid system was fitted to GLE 580 4MATIC and GLS 580 4MATIC. The M176 engine with EQ Boost has been upgraded in 2021 for S 580 4MATIC with increased output for petrol engine () and decreased output for EQ Boost (). Applications == M177 ==

The M177 was the first variation 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. As part of the agreement with Mercedes-AMG since 2013, Aston Martin installs the M177 engines in the DB11 V8 and DB11 Volante (2017–), Vantage (2018–), DBX (2021–) and DB12 (2023–). In late 2019, the 48V system used in the M176 was added to the M177 engines for extra performance, improved fuel consumption, and reduced emission output. Applications == M178 ==

The M178 is the second variation in the family, geared toward higher performance and motorsport. The versions were introduced in Mercedes-AMG GT (C190). Specifications • Cylinder arrangement V8 • Cylinder angle 90° • Cylinder block alloy Cast aluminum, closed deck • Cylinder head alloy Cast aluminum, zirconium alloy • Valves per cylinder 4 (DOHC) • Variable valve timing Camshaft adjustment on both the inlet and outlet side • Displacement • Bore x stroke • Cylinder spacing • Compression ratio 10.5:1 • Output at 6,250 rpm [Output per liter ] • Maximum torque at 1750 – 4750 rpm [Torque per liter ] • Maximum engine speed 7,200 rpm • Maximum charge pressure • Peak engine pressure • Air delivery Forced induction, 2x twin scroll turbochargers spinning to 186,000 rpm with electronically controlled blow-off valves • Fuel delivery Electronically controlled direct petrol injection with spray-guided combustion, fully variable, fuel pressure • Coolant delivery 3 phase thermostat, timing chain driven water pump rated /min flow • Oil delivery oil, dry-sump, via two-stage controlled suction pump ( /min), a pressure pump and a external oil tank • Oil cooling External engine oil cooler in the front • Charged air cooling Indirect air/water intercooling, cooling charged air to 25 °C (77 °F) above outside temperature under full load • Engine weight (dry) • Emissions standard Euro 6 • NEDC combined consumption Under / Applications == See also ==