Base de vehículos/MERCEDES-BENZ CLS-Class

2022 MERCEDES-BENZ CLS-Class M256/OM654 (C257)

C257 / 4-Door Coupe / Global with market-specific engine variants

M256OM654M264Registro exacto de año/versiónSilver

Engine identity

Engine code

M256, OM654, M264

Engine summary

The 2022 CLS-Class C257 is offered globally with multiple engines: a 3.0L inline-6 turbocharged with mild hybrid system (engine code M256) in many markets, a 2.0L inline-4 turbo (M264) mainly in Europe, and Diesel inline-4 2.0L (OM654) in selected markets. Power and torque vary by engine and market.

Displacement

1991 cc to 2999 cc, depending on engine

Power

197 hp to 362 hp depending on engine variant

Torque

320 Nm to 500 Nm depending on engine variant

Fuel system

Direct fuel injection with turbocharging and mild hybrid system on M256

Timing drive

Chain-driven camshafts

Puerto OBD

Verify by VIN and market

Oils and fluids

Tipo de aceite

MB recommended synthetic fully formulated engine oils meeting MB 229.5 or 229.71 specification

Capacidad de aceite

Approx. 7.0 to 8.5 liters including filter; service fill; exact capacity depends on engine variant

Refrigerante

Approx. 10 liters, varies by engine and radiator configuration

Fluido

MB approved synthetic ATF, change interval varies by market (typically around 80,000 km or 5 years)

Differential fluid

Synthetic gear oil; interval varies, often coinciding with transmission service

Líquido de frenos

DOT 4 synthetic, replace every 2 years

Service and parts data

Manual transmission

Not offered; all variants use automatic transmissions

Automatic transmission

9G-TRONIC 9-speed automatic (W9A 400/500) or 7G-TRONIC in some global markets

Spark plugs

Iridium-tipped plugs, replace interval approx. 100,000 km

Service interval

Variable depending on market; typically 15,000 km or 1 year oil change interval

Medidas de neumáticos

255/35 R19, 285/30 R20, 275/30 R20

Torque de rueda

Verify by VIN and market

Common and chronic problems

Minor electronic glitches in MBUX system reported
Air suspension wear in higher-mileage vehicles

First checks

Verify engine oil level regularly, especially for mild hybrid variants
Inspect air suspension and brake wear components

Antes de cambiar piezas

Save fault codes and freeze-frame data before clearing anything.
Check engine oil, coolant and transmission fluid using the correct temperature and service procedure.
Verify power, ground, connectors, hoses, leaks and live data before replacing expensive parts.

Important notes

Engine variants and transmission fitment depend on regional regulations and demand.
Oil capacity includes filter change service fill; always check specific engine manual for exact volumes.

Códigos comunes

Source and verification notes

Manufacturer official 2022 CLS-Class technical brochures and service manuals.
Independent automotive technical databases including global Mercedes-Benz service literature.

Herramientas compatibles

Verify by VIN and market

Preguntas frecuentes

What engine code does the 2022 MERCEDES-BENZ CLS-Class M256/OM654 (C257) use? 2022 MERCEDES-BENZ CLS-Class M256/OM654 (C257) is listed here with engine code M256, OM654, M264; engine summary: The 2022 CLS-Class C257 is offered globally with multiple engines: a 3.0L inline-6 turbocharged with mild hybrid system (engine code M256) in many markets, a 2.0L inline-4 turbo (M264) mainly in Europe, and Diesel inline-4 2.0L (OM654) in selected markets. Power and torque vary by engine and market..
What oil and capacity does the 2022 MERCEDES-BENZ CLS-Class M256/OM654 (C257) use? 2022 MERCEDES-BENZ CLS-Class M256/OM654 (C257) is listed with MB recommended synthetic fully formulated engine oils meeting MB 229.5 or 229.71 specification and oil capacity Approx. 7.0 to 8.5 liters including filter; service fill; exact capacity depends on engine variant. Confirm market and engine option before service.
What are common 2022 MERCEDES-BENZ CLS-Class M256/OM654 (C257) problems? Highlighted checks for 2022 MERCEDES-BENZ CLS-Class M256/OM654 (C257): Minor electronic glitches in MBUX system reported, Air suspension wear in higher-mileage vehicles.

Engine identity

Engine code

M256, OM654, M264

Engine summary

Displacement

1991 cc to 2999 cc, depending on engine

Power

197 hp to 362 hp depending on engine variant

Torque

320 Nm to 500 Nm depending on engine variant

Fuel system

Direct fuel injection with turbocharging and mild hybrid system on M256

Timing drive

Chain-driven camshafts

Puerto OBD

Verify by VIN and market

Oils and fluids

Tipo de aceite

MB recommended synthetic fully formulated engine oils meeting MB 229.5 or 229.71 specification

Capacidad de aceite

Approx. 7.0 to 8.5 liters including filter; service fill; exact capacity depends on engine variant

Refrigerante

Approx. 10 liters, varies by engine and radiator configuration

Fluido

MB approved synthetic ATF, change interval varies by market (typically around 80,000 km or 5 years)

Differential fluid

Synthetic gear oil; interval varies, often coinciding with transmission service

Líquido de frenos

DOT 4 synthetic, replace every 2 years

Service and parts data

Manual transmission

Not offered; all variants use automatic transmissions

Automatic transmission

9G-TRONIC 9-speed automatic (W9A 400/500) or 7G-TRONIC in some global markets

Spark plugs

Iridium-tipped plugs, replace interval approx. 100,000 km

Service interval

Variable depending on market; typically 15,000 km or 1 year oil change interval

Medidas de neumáticos

255/35 R19, 285/30 R20, 275/30 R20

Torque de rueda

Verify by VIN and market

Preguntas frecuentes

What engine code does the 2022 MERCEDES-BENZ CLS-Class M256/OM654 (C257) use? 2022 MERCEDES-BENZ CLS-Class M256/OM654 (C257) is listed here with engine code M256, OM654, M264; engine summary: The 2022 CLS-Class C257 is offered globally with multiple engines: a 3.0L inline-6 turbocharged with mild hybrid system (engine code M256) in many markets, a 2.0L inline-4 turbo (M264) mainly in Europe, and Diesel inline-4 2.0L (OM654) in selected markets. Power and torque vary by engine and market..

What oil and capacity does the 2022 MERCEDES-BENZ CLS-Class M256/OM654 (C257) use? 2022 MERCEDES-BENZ CLS-Class M256/OM654 (C257) is listed with MB recommended synthetic fully formulated engine oils meeting MB 229.5 or 229.71 specification and oil capacity Approx. 7.0 to 8.5 liters including filter; service fill; exact capacity depends on engine variant. Confirm market and engine option before service.

What are common 2022 MERCEDES-BENZ CLS-Class M256/OM654 (C257) problems? Highlighted checks for 2022 MERCEDES-BENZ CLS-Class M256/OM654 (C257): Minor electronic glitches in MBUX system reported, Air suspension wear in higher-mileage vehicles.

2022 MERCEDES-BENZ CLS-Class M256/OM654 (C257)

Engine identity

Oils and fluids

Service and parts data

Common and chronic problems

First checks

Antes de cambiar piezas

Important notes

Scanning Engine...

2022 MERCEDES-BENZ CLS-Class M256/OM654 (C257)

Engine identity

Oils and fluids

Service and parts data

Common and chronic problems

First checks

Antes de cambiar piezas

Important notes