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SOURCE-RECORDED POWERTRAINS

M256M · source specifications & fitments

Vehicle configurations reporting M256M. Compare documented years, trim labels and source-specific outputs; a shared code does not establish interchangeability.

Make, model, trim or engine code

Vehicle make

Documented year

Vehicles reporting M256M

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 CLE	2025–2026	6 fitments & specifications ↗
Mercedes-Benz E-Class	2026	4 fitments & specifications ↗
Mercedes-Benz G-Class	2025–2026	2 fitments & specifications ↗
Mercedes-Benz GLE-Class	2025–2026	6 fitments & specifications ↗
Mercedes-Benz GLS-Class	2025–2026	2 fitments & specifications ↗

Reported engine supplier: Mercedes-Benz AG. Outputs remain attached to the configurations below; they are not universal ratings for this engine label.

20 source configuration groups

Mercedes-Benz / 2025

CLE

AMG CLE53 4MATIC

Source engine label: M256M
Source engine power: 443 hp≈ 330.3 kW
Transmission: Automatic · 9 speeds
Body: Convertible/Cabriolet

NHTSA VIN specification · Market not established

Specifications & source conditions ↗

Mercedes-Benz / 2025

CLE

AMG CLE53 4MATIC

Source engine label: M256M
Source engine power: 443 hp≈ 330.3 kW
Transmission: Automatic · 9 speeds
Body: Coupe

NHTSA VIN specification · Market not established

Specifications & source conditions ↗

Mercedes-Benz / 2026

CLE

CLE450 4MATIC

Source engine label: M256M
Source engine power: 375 hp≈ 279.6 kW
Transmission: Not recorded · 9 speeds
Body: Coupe

NHTSA VIN specification · Market not established

Specifications & source conditions ↗

Mercedes-Benz / 2026

CLE

AMG CLE53 4MATIC

Source engine label: M256M
Source engine power: 443 hp≈ 330.3 kW
Transmission: Not recorded · 9 speeds
Body: Coupe

NHTSA VIN specification · Market not established

Specifications & source conditions ↗

Mercedes-Benz / 2026

CLE

CLE450 4MATIC

Source engine label: M256M
Source engine power: 375 hp≈ 279.6 kW
Transmission: Not recorded · 9 speeds
Body: Convertible/Cabriolet

NHTSA VIN specification · Market not established

Specifications & source conditions ↗

Mercedes-Benz / 2026

CLE

AMG CLE53 4MATIC

Source engine label: M256M
Source engine power: 443 hp≈ 330.3 kW
Transmission: Not recorded · 9 speeds
Body: Convertible/Cabriolet

NHTSA VIN specification · Market not established

Specifications & source conditions ↗

Mercedes-Benz / 2025

GLS-Class

GLS450 4MATIC

Source engine label: M256M
Source engine power: 375 hp≈ 279.6 kW
Transmission: Automatic · 9 speeds
Body: Sport Utility Vehicle [SUV]/Multipurpose Vehicle [MPV]

NHTSA VIN specification · Market not established

Specifications & source conditions ↗

Mercedes-Benz / 2026

GLS-Class

GLS450 4MATIC

Source engine label: M256M
Source engine power: 375 hp≈ 279.6 kW
Transmission: Not recorded · 9 speeds
Body: Sport Utility Vehicle [SUV]/Multipurpose Vehicle [MPV]

NHTSA VIN specification · Market not established

Specifications & source conditions ↗

Mercedes-Benz / 2026

E-Class

E53e 4MATIC

Source engine label: M256M
Source engine power: 443 hp≈ 330.3 kW
Transmission: Not recorded · 9 speeds
Body: Not recorded

NHTSA VIN specification · Market not established

Specifications & source conditions ↗

Mercedes-Benz / 2026

E-Class

E450 4MATIC All Terrain

Source engine label: M256M
Source engine power: 375 hp≈ 279.6 kW
Transmission: Automatic · 9 speeds
Body: Wagon

NHTSA VIN specification · Market not established

Specifications & source conditions ↗

Mercedes-Benz / 2026

E-Class

E450 4MATIC

Source engine label: M256M
Source engine power: 375 hp≈ 279.6 kW
Transmission: Not recorded · 9 speeds
Body: Sedan/Saloon

NHTSA VIN specification · Market not established

Specifications & source conditions ↗

Mercedes-Benz / 2026

E-Class

AMG E53e 4MATIC

Source engine label: M256M
Source engine power: 443 hp≈ 330.3 kW
Transmission: Automatic · 9 speeds
Body: Sedan/Saloon

NHTSA VIN specification · Market not established

Specifications & source conditions ↗

Mercedes-Benz / 2025

GLE-Class

GLE450 4MATIC

Source engine label: M256M
Source engine power: 375 hp≈ 279.6 kW
Transmission: Automatic · 9 speeds
Body: Sport Utility Vehicle [SUV]/Multipurpose Vehicle [MPV]

NHTSA VIN specification · Market not established

Specifications & source conditions ↗

Mercedes-Benz / 2025

GLE-Class

AMG GLE53

Source engine label: M256M
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 / 2026

GLE-Class

GLE450 4MATIC

Source engine label: M256M
Source engine power: 375 hp≈ 279.6 kW
Transmission: Automatic · 9 speeds
Body: Sport Utility Vehicle [SUV]/Multipurpose Vehicle [MPV]

NHTSA VIN specification · Market not established

Specifications & source conditions ↗

Mercedes-Benz / 2026

GLE-Class

GLE450 4MATIC

Source engine label: M256M
Source engine power: 375 hp≈ 279.6 kW
Transmission: Automatic · 9 speeds
Body: Sport Utility Vehicle [SUV]/Multipurpose Vehicle [MPV]

NHTSA VIN specification · Market not established

Specifications & source conditions ↗

Mercedes-Benz / 2026

GLE-Class

AMG GLE53

Source engine label: M256M
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 / 2026

GLE-Class

AMG GLE53

Source engine label: M256M
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 / 2025

G-Class

G550

Source engine label: M256M
Source engine power: 443 hp≈ 330.3 kW
Transmission: Automatic · 9 speeds
Body: Sport Utility Vehicle [SUV]/Multipurpose Vehicle [MPV]

NHTSA VIN specification · Market not established

Specifications & source conditions ↗

Mercedes-Benz / 2026

G-Class

G550

Source engine label: M256M
Source engine power: 443 hp≈ 330.3 kW
Transmission: Automatic · 9 speeds
Body: Sport Utility Vehicle [SUV]/Multipurpose Vehicle [MPV]

NHTSA VIN specification · Market not established

Specifications & source conditions ↗