Fahrzeugdatenbank/MERCEDES-BENZ SLC-Class

2017 MERCEDES-BENZ SLC-Class M270 DE 20 AL (SLC 200)/M274 DE 20 AL (SLC 300) (R172)

R172 / 2-door convertible / Global (Europe, North America, select Asia markets)

M270 DE 20 AL (SLC 200)M274 DE 20 AL (SLC 300)M276 DE 30 AL (SLC 43 AMG)Exakter Jahres-/Varianten-DatensatzGold

Engine identity

Engine code

M270 DE 20 AL (SLC 200), M274 DE 20 AL (SLC 300), M276 DE 30 AL (SLC 43 AMG)

Engine summary

Turbocharged inline-4 and V6 petrol engines; 4-cylinder models use M270 or M274 engines; AMG model uses M276 V6 bi-turbo

Displacement

1.991 L (I4), 1.991 L (I4), 2.996 L (V6)

Power

SLC 200: ~184 hp; SLC 300: ~245 hp; SLC 43 AMG: 367 hp

Torque

SLC 200: 300 Nm; SLC 300: 370 Nm; SLC 43 AMG: 520 Nm

Fuel system

Direct injection with turbocharging

Timing drive

Chain-driven dual overhead camshafts

OBD-Port

Verify by VIN and market

Oils and fluids

Öltyp

Fully synthetic Mercedes-Benz approved engine oil (e.g., MB 229.5 or later)

Ölmenge

Approximately 6.9 liters service fill with filter change (varies slightly by engine)

Kühlmittel

Approx. 7 liters

Flüssigkeit

Mercedes-Benz approved ATF (specified per transmission type)

Differential fluid

Specified by AMG or standard differential, varies by model

Bremsflüssigkeit

DOT4

Service and parts data

Manual transmission

6-speed manual available in some markets for lower trims

Automatic transmission

7G-TRONIC (7-speed automatic) or 9G-TRONIC (9-speed automatic) depending on market and engine

Spark plugs

Iridium-tipped spark plugs recommended; change interval ~60,000 km

Service interval

Typically 20,000 km or 1 year; depends on market and driving conditions

Reifengrößen

225/45 R18 (standard), 245/40 R18 or 19 for AMG variant

Radmoment

Verify by VIN and market

Common and chronic problems

Electrical issues with COMAND system
Steering rack wear in high mileage
Turbocharger wastegate rattling in some 4-cylinder engines

First checks

Inspect soft-top mechanism and seal integrity
Check for oil leaks from turbocharger area
Verify DTC codes for electronic components

Vor dem Teiletausch

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

Facelifted R172 generation launched in 2016, continued through 2017
Engine and transmission options vary significantly by market due to emissions regulations

Häufige Codes

Source and verification notes

Official Mercedes-Benz 2017 SLC-Class technical brochures
Global automotive specification databases (e.g., Ward's Auto, Edmunds, Manufacturer service manuals)

Kompatible Werkzeuge

Verify by VIN and market

Häufige Fragen

What engine code does the 2017 MERCEDES-BENZ SLC-Class M270 DE 20 AL (SLC 200)/M274 DE 20 AL (SLC 300) (R172) use? 2017 MERCEDES-BENZ SLC-Class M270 DE 20 AL (SLC 200)/M274 DE 20 AL (SLC 300) (R172) is listed here with engine code M270 DE 20 AL (SLC 200), M274 DE 20 AL (SLC 300), M276 DE 30 AL (SLC 43 AMG); engine summary: Turbocharged inline-4 and V6 petrol engines; 4-cylinder models use M270 or M274 engines; AMG model uses M276 V6 bi-turbo.
What oil and capacity does the 2017 MERCEDES-BENZ SLC-Class M270 DE 20 AL (SLC 200)/M274 DE 20 AL (SLC 300) (R172) use? 2017 MERCEDES-BENZ SLC-Class M270 DE 20 AL (SLC 200)/M274 DE 20 AL (SLC 300) (R172) is listed with Fully synthetic Mercedes-Benz approved engine oil (e.g., MB 229.5 or later) and oil capacity Approximately 6.9 liters service fill with filter change (varies slightly by engine). Confirm market and engine option before service.
What are common 2017 MERCEDES-BENZ SLC-Class M270 DE 20 AL (SLC 200)/M274 DE 20 AL (SLC 300) (R172) problems? Highlighted checks for 2017 MERCEDES-BENZ SLC-Class M270 DE 20 AL (SLC 200)/M274 DE 20 AL (SLC 300) (R172): Electrical issues with COMAND system, Steering rack wear in high mileage, Turbocharger wastegate rattling in some 4-cylinder engines.

Engine identity

Engine code

M270 DE 20 AL (SLC 200), M274 DE 20 AL (SLC 300), M276 DE 30 AL (SLC 43 AMG)

Engine summary

Turbocharged inline-4 and V6 petrol engines; 4-cylinder models use M270 or M274 engines; AMG model uses M276 V6 bi-turbo

Displacement

1.991 L (I4), 1.991 L (I4), 2.996 L (V6)

Power

SLC 200: ~184 hp; SLC 300: ~245 hp; SLC 43 AMG: 367 hp

Torque

SLC 200: 300 Nm; SLC 300: 370 Nm; SLC 43 AMG: 520 Nm

Fuel system

Direct injection with turbocharging

Timing drive

Chain-driven dual overhead camshafts

OBD-Port

Verify by VIN and market

Oils and fluids

Öltyp

Fully synthetic Mercedes-Benz approved engine oil (e.g., MB 229.5 or later)

Ölmenge

Approximately 6.9 liters service fill with filter change (varies slightly by engine)

Kühlmittel

Approx. 7 liters

Flüssigkeit

Mercedes-Benz approved ATF (specified per transmission type)

Differential fluid

Specified by AMG or standard differential, varies by model

Bremsflüssigkeit

DOT4

Service and parts data

Manual transmission

6-speed manual available in some markets for lower trims

Automatic transmission

7G-TRONIC (7-speed automatic) or 9G-TRONIC (9-speed automatic) depending on market and engine

Spark plugs

Iridium-tipped spark plugs recommended; change interval ~60,000 km

Service interval

Typically 20,000 km or 1 year; depends on market and driving conditions

Reifengrößen

225/45 R18 (standard), 245/40 R18 or 19 for AMG variant

Radmoment

Verify by VIN and market

Häufige Fragen

What engine code does the 2017 MERCEDES-BENZ SLC-Class M270 DE 20 AL (SLC 200)/M274 DE 20 AL (SLC 300) (R172) use? 2017 MERCEDES-BENZ SLC-Class M270 DE 20 AL (SLC 200)/M274 DE 20 AL (SLC 300) (R172) is listed here with engine code M270 DE 20 AL (SLC 200), M274 DE 20 AL (SLC 300), M276 DE 30 AL (SLC 43 AMG); engine summary: Turbocharged inline-4 and V6 petrol engines; 4-cylinder models use M270 or M274 engines; AMG model uses M276 V6 bi-turbo.

What oil and capacity does the 2017 MERCEDES-BENZ SLC-Class M270 DE 20 AL (SLC 200)/M274 DE 20 AL (SLC 300) (R172) use? 2017 MERCEDES-BENZ SLC-Class M270 DE 20 AL (SLC 200)/M274 DE 20 AL (SLC 300) (R172) is listed with Fully synthetic Mercedes-Benz approved engine oil (e.g., MB 229.5 or later) and oil capacity Approximately 6.9 liters service fill with filter change (varies slightly by engine). Confirm market and engine option before service.

What are common 2017 MERCEDES-BENZ SLC-Class M270 DE 20 AL (SLC 200)/M274 DE 20 AL (SLC 300) (R172) problems? Highlighted checks for 2017 MERCEDES-BENZ SLC-Class M270 DE 20 AL (SLC 200)/M274 DE 20 AL (SLC 300) (R172): Electrical issues with COMAND system, Steering rack wear in high mileage, Turbocharger wastegate rattling in some 4-cylinder engines.

2017 MERCEDES-BENZ SLC-Class M270 DE 20 AL (SLC 200)/M274 DE 20 AL (SLC 300) (R172)

Engine identity

Oils and fluids

Service and parts data

Common and chronic problems

First checks

Vor dem Teiletausch

Important notes

Scanning Engine...

2017 MERCEDES-BENZ SLC-Class M270 DE 20 AL (SLC 200)/M274 DE 20 AL (SLC 300) (R172)

Engine identity

Oils and fluids

Service and parts data

Common and chronic problems

First checks

Vor dem Teiletausch

Important notes