| Mercedes-Benz M176/M177/M178 | |
| Manufacturer: | Mercedes-AMG |
| Production: | 2014–present |
| Predecessor: | Mercedes-Benz M278 / M157 engine (4.7 L & 5.5 L) Mercedes-Benz M152 engine Mercedes-Benz M156 engine |
| Configuration: | 90° V8 |
| Displacement: | 3982cc |
| Bore: | 832NaN2 |
| Stroke: | 922NaN2 |
| Block: | Cast-aluminium, closed deck |
| Valvetrain: | DOHC 4 valves x cyl. |
| Compression: | 10.5:1 |
| Supercharger: | BorgWarner e-Booster (EQ Boost; 2019—present) |
| Turbocharger: | BorgWarner twin-turbos |
| Fuelsystem: | Direct injection |
| Fueltype: | Gasoline |
| Coolingsystem: | Water-cooled |
| Redline: | 7,000 rpm |
| Power: | 340- |
| Torque: | 600- |
| Weight: | 209kg (461lb) |
The M176/M177/M178 is a petrol V8 engine range designed by Mercedes-AMG, replacing the M278 and M157 engines, and is based on the M133 engine.[1]
The engine has two BorgWarner turbochargers positioned between the two cylinder heads in a "hot-V" configuration. The fuel injection system uses Bosch's new piezo-electric direct fuel injectors that deliver five squirts of fuel per combustion cycle.[2]
The M176 engines are mostly assembled by machine with some components assembled by technicians at Untertürkheim manufacturing centre outside Stuttgart. The M177 and M178 are individually assembled by the technicians in "one man, one engine" principle at the AMG manufacturing centre in Affalterbach.[3]
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 160NaN0 and 2500NaN0 of torque.[4] 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 (370abbr=onNaNabbr=on) and decreased output for EQ Boost (150NaN0).
| Model | Years |
|---|---|
| Mercedes-Benz G 500/G 550 and G 500 4×4² (W463, first generation) | 2015–2018 |
| Mercedes-Benz S 560/S 560 4MATIC (W222/V222) | 2017–2020 |
| Mercedes-Maybach S 560/S 560 4MATIC (X222) | 2017–2020 |
| 2017–2020 | |
| Mercedes-Benz G 500/G 550 (W463, second generation) | 2018–2024 |
| Mercedes-Benz GLE 580 4MATIC (W167/V167) | 2019– |
| Mercedes-Benz GLS 580 4MATIC (X167) | 2019– |
| Mercedes-Benz S 580 4MATIC (W223/V223) | 2021– |
| Mercedes-Maybach S 580 4MATIC (without EQ Boost) (Z223) | 2021– |
| BAIC BJ90 | 2017– |
The M177 was the first variation released in the Mercedes-AMG C63.[5] 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]
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–).[7] [8] [9] [10]
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.[11]
| Model | Years |
|---|---|
| Mercedes-AMG C 63 and C 63 S (W205) | 2015–2021 |
| Mercedes-AMG E 63 4MATIC+ and E 63 S 4MATIC+ (W213) | 2016–2022 |
| Mercedes-AMG S 63 Coupe 4MATIC (C217) and S 63 Cabriolet 4MATIC (A217) | 2018–2020 |
| Mercedes-AMG S 63 4MATIC and S 63 (W222/V222) | 2017–2020 |
| Mercedes-AMG GT 63 4MATIC+, GT 63 S 4MATIC+, and GT 63 S E Performance (X290) | 2018– |
| Mercedes-AMG G 63 (W463, second generation) | 2019– |
| Mercedes-AMG GLC 63 4MATIC, GLC 63 4MATIC Coupé, GLC 63 S 4MATIC, and GLC 63 S 4MATIC Coupé (X253) | 2018– |
| Mercedes-AMG GLE 63 4MATIC+ and 63 S 4MATIC+ (X167) with ISG) | 2020– |
| 2020– | |
| Mercedes-Maybach GLS 600 (X167) with ISG | 2020– |
| Mercedes-AMG SL 55 4MATIC+, SL 63 4MATIC+ (R232) | 2022– |
| Mercedes-AMG S 63 E Performance (W223) | 2022– |
| Brabus Rocket 900 "ONE OF TEN" (enlarged to 4.4 L) | 2020– |
| Aston Martin DB11 V8 and DB11 Volante | 2017– |
| Aston Martin Vantage V8, Vantage F1 Edition and Vantage AMR 59 | 2018– |
| Aston Martin DBX V8 and DBX707 | 2021– |
| Aston Martin DB12 | 2023– |
The M178 is the second variation in the family, geared toward higher performance and motorsport. The 340and versions were introduced in Mercedes-AMG GT (C190). The power has been upgraded several times. Brabus offers PowerXtra B40S-800, a performance upgrade kit for AMG GT.[12] The kit increases the output to 5880NaN0 at 6,500 rpm and 10000NaN0 at 1,750-4,500 rpm.
| Model | Years | Power | Torque |
|---|---|---|---|
| Mercedes-AMG GT (C190) | 03/2015–03/2017 | 3400NaN0 at 6,000 rpm | 6000NaN0 at 1,600–5,000 rpm |
| 07/2017–07/2020 | 3500NaN0 at 6,000 rpm | 6300NaN0 at 1,700–5,000 rpm | |
| 07/2020– | 3900NaN0 at 5,500–6,750 rpm | 6700NaN0 at 2,100–5,250 rpm | |
| Mercedes-AMG GT S (C190) | 03/2015–03/2017 | 3750NaN0 at 6,250 rpm | 6500NaN0 at 1,750–4,750 rpm |
| 03/2017–07/2020 | 3840NaN0 at 6,250 rpm | 6700NaN0 at 1,800–5,000 rpm | |
| Mercedes-AMG GT C (C190) | 03/2017– | 4100NaN0 at 5,750–6,750 rpm | 6800NaN0 at 1,900–5,750 rpm |
| Mercedes-AMG GT R (C190) | 4300NaN0 at 6,250 rpm | 7000NaN0 at 1,900–5,500 rpm | |
| Mercedes-AMG GT Black Series (C190) (Engine Code M178 LS2) | 07/2020– | 5370NaN0 at 6,700–6,900 rpm | 8000NaN0 at 2,000–6,000 rpm |
| Mercedes-AMG GT Track Series (C190) (Engine Code M178 LS2) | 03/2022 | 5400NaN0 at 6,700–6,900 rpm | 8500NaN0 at 2,000–6,000 rpm |
| Aston Martin Valhalla (Engine Code M178 LS2) | 2023– | 551.50NaN0 |