Mercedes-Benz / 2018
CLS-Class
CLS550-4M
- Source engine label
- M278
- Source engine power
- 402 hp≈ 299.8 kW
- Transmission
- Automatic · 9 speeds
- Body
- Sedan/Saloon
NHTSA VIN specification · Market not established
Specifications & source conditions ↗SOURCE-RECORDED POWERTRAINS
M278 · source specifications & fitments
Vehicle configurations reporting M278. Compare documented years, trim labels and source-specific outputs; a shared code does not establish interchangeability.
Vehicles reporting M278
Exact engine-code matches from the source. These links do not establish that every variant shares this record’s specifications or market.
| Vehicle | Documented fitment years | Explore |
|---|---|---|
| Mercedes-Benz CLS-Class | 2018–2019, 2021–2022 | 4 fitments & specifications ↗ |
| Mercedes-Benz E-Class | 2017–2019, 2021–2022 | 2 fitments & specifications ↗ |
| Mercedes-Benz GL-Class | 2016 | 1 fitments & specifications ↗ |
| Mercedes-Benz GLS-Class | 2017–2019 | 2 fitments & specifications ↗ |
| Mercedes-Benz S-Class | 2017–2022 | 9 fitments & specifications ↗ |
| Mercedes-Benz SL-Class | 2018–2022 | 2 fitments & specifications ↗ |
Reported engine supplier: Daimler. Outputs remain attached to the configurations below; they are not universal ratings for this engine label.
20 source configuration groups
Mercedes-Benz / 2018
CLS-Class
CLS550
- Source engine label
- M278
- Source engine power
- 402 hp≈ 299.8 kW
- Transmission
- Automatic · 9 speeds
- Body
- Sedan/Saloon
NHTSA VIN specification · Market not established
Specifications & source conditions ↗Mercedes-Benz / 2019, 2021–2022
CLS-Class
CLS550-4M
- Source engine label
- M278
- Source engine power
- 402 hp≈ 299.8 kW
- Transmission
- Automatic · 9 speeds
- Body
- Coupe
NHTSA VIN specification · Market not established
Specifications & source conditions ↗Mercedes-Benz / 2019, 2021–2022
CLS-Class
CLS550
- Source engine label
- M278
- Source engine power
- 402 hp≈ 299.8 kW
- Transmission
- Automatic · 9 speeds
- Body
- Coupe
NHTSA VIN specification · Market not established
Specifications & source conditions ↗Mercedes-Benz / 2017
GLS-Class
GLS550-4M
- Source engine label
- M278
- Source engine power
- 429 hp≈ 319.9 kW
- Transmission
- Not recorded
- Body
- Sport Utility Vehicle [SUV]/Multipurpose Vehicle [MPV]
NHTSA VIN specification · Market not established
Specifications & source conditions ↗Mercedes-Benz / 2018–2019
GLS-Class
GLS550-4M
- Source engine label
- M278
- Source engine power
- 429 hp≈ 319.9 kW
- Transmission
- Automatic · 9 speeds
- Body
- Sport Utility Vehicle [SUV]/Multipurpose Vehicle [MPV]
NHTSA VIN specification · Market not established
Specifications & source conditions ↗Mercedes-Benz / 2017, 2019–2022
S-Class
Mercedes-Maybach S550-4M
- Source engine label
- M278
- Source engine power
- 449 hp≈ 334.8 kW
- Transmission
- Not recorded
- Body
- Sedan/Saloon
NHTSA VIN specification · Market not established
Specifications & source conditions ↗Mercedes-Benz / 2017–2022
S-Class
S550
- Source engine label
- M278
- Source engine power
- 449 hp≈ 334.8 kW
- Transmission
- Not recorded
- Body
- Convertible/Cabriolet
NHTSA VIN specification · Market not established
Specifications & source conditions ↗Mercedes-Benz / 2018–2022
S-Class
S550
- Source engine label
- M278
- Source engine power
- 449 hp≈ 334.8 kW
- Transmission
- Not recorded
- Body
- Coupe
NHTSA VIN specification · Market not established
Specifications & source conditions ↗Mercedes-Benz / 2018
S-Class
S560 4MATIC
- Source engine label
- M278
- Source engine power
- 463 hp≈ 345.3 kW
- Transmission
- Automatic · 9 speeds
- Body
- Sedan/Saloon
NHTSA VIN specification · Market not established
Specifications & source conditions ↗Mercedes-Benz / 2018
S-Class
S560
- Source engine label
- M278
- Source engine power
- 463 hp≈ 345.3 kW
- Transmission
- Automatic · 9 speeds
- Body
- Sedan/Saloon
NHTSA VIN specification · Market not established
Specifications & source conditions ↗Mercedes-Benz / 2018
S-Class
S560
- Source engine label
- M278
- Source engine power
- 463 hp≈ 345.3 kW
- Transmission
- Automatic · 9 speeds
- Body
- Convertible/Cabriolet
NHTSA VIN specification · Market not established
Specifications & source conditions ↗Mercedes-Benz / 2018
S-Class
S560 4MATIC
- Source engine label
- M278
- Source engine power
- 463 hp≈ 345.3 kW
- Transmission
- Automatic · 9 speeds
- Body
- Coupe
NHTSA VIN specification · Market not established
Specifications & source conditions ↗Mercedes-Benz / 2018
S-Class
Maybach S560 4MATIC
- Source engine label
- M278
- Source engine power
- 463 hp≈ 345.3 kW
- Transmission
- Automatic · 9 speeds
- Body
- Sedan/Saloon
NHTSA VIN specification · Market not established
Specifications & source conditions ↗Mercedes-Benz / 2018
S-Class
Maybach S550 4MATIC
- Source engine label
- M278
- Source engine power
- 449 hp≈ 334.8 kW
- Transmission
- Not recorded
- Body
- Sedan/Saloon
NHTSA VIN specification · Market not established
Specifications & source conditions ↗Mercedes-Benz / 2016
GL-Class
GL550-4M
- Source engine label
- M278
- Source engine power
- 429 hp≈ 319.9 kW
- Transmission
- Not recorded
- Body
- Sport Utility Vehicle [SUV]/Multipurpose Vehicle [MPV]
NHTSA VIN specification · Market not established
Specifications & source conditions ↗Mercedes-Benz / 2017–2019, 2021–2022
E-Class
E550
- Source engine label
- M278
- Source engine power
- 402 hp≈ 299.8 kW
- Transmission
- Not recorded
- Body
- Coupe
NHTSA VIN specification · Market not established
Specifications & source conditions ↗Mercedes-Benz / 2017–2019, 2021–2022
E-Class
E550
- Source engine label
- M278
- Source engine power
- 402 hp≈ 299.8 kW
- Transmission
- Not recorded
- Body
- Convertible/Cabriolet
NHTSA VIN specification · Market not established
Specifications & source conditions ↗Mercedes-Benz / 2018
SL-Class
SL550
- Source engine label
- M278
- Source engine power
- 449 hp≈ 334.8 kW
- Transmission
- Automatic · 9 speeds
- Body
- Convertible/Cabriolet
NHTSA VIN specification · Market not established
Specifications & source conditions ↗Mercedes-Benz / 2019–2022
SL-Class
SL550
- Source engine label
- M278
- Source engine power
- 449 hp≈ 334.8 kW
- Transmission
- Automatic · 9 speeds
- Body
- Convertible/Cabriolet
NHTSA VIN specification · Market not established
Specifications & source conditions ↗