Which Car Has

Mercedes-Benz SLC-Class

Transmission, start-stop, premium fuel and flex-fuel by model year, 2017–2020

TransmissionThe 2020 Mercedes-Benz SLC-Class uses a 9-speed automatic in every configuration EPA tested.

Auto start-stopYes. Every 2020 Mercedes-Benz SLC-Class configuration EPA tested has auto start-stop.

Premium fuelEPA tested the 2020 Mercedes-Benz SLC-Class on premium fuel; your owner's manual or fuel-door label is the authority.

Flex-fuel (E85)No. EPA does not list any 2020 Mercedes-Benz SLC-Class configuration as a flex-fuel vehicle (FFV).

2020 at a glance

2 configurations tested by EPA

CVTNone
0 of 2
No CVT
ManualNone
0 of 2
Not offered
Auto start-stopAll
2 of 2
Premium fuelAll
2 of 2
EPA test fuel
Flex-fuel (E85)None
0 of 2
No FFV versions

EPA lists no manual transmission for any Mercedes-Benz SLC-Class from 2017–2020.

Mercedes-Benz SLC-Class features by model year

Which Mercedes-Benz SLC-Class model years have each feature. Each cell links to that year's configurations.
’17’18’19’20
CVT2017 CVT: None2018 CVT: None2019 CVT: None2020 CVT: None
Manual2017 Manual: None2018 Manual: None2019 Manual: None2020 Manual: None
Automated manual2017 Automated manual: None2018 Automated manual: None2019 Automated manual: None2020 Automated manual: None
Automatic2017 Automatic: All2018 Automatic: All2019 Automatic: All2020 Automatic: All
Start-stop2017 Start-stop: All2018 Start-stop: All2019 Start-stop: All2020 Start-stop: All
Premium fuel2017 Premium fuel: All2018 Premium fuel: All2019 Premium fuel: All2020 Premium fuel: All
Flex-fuel2017 Flex-fuel: None2018 Flex-fuel: None2019 Flex-fuel: None2020 Flex-fuel: None
All configurationsSome configurationsNoneNot reported by EPA

Configurations by year

2020 Mercedes-Benz SLC-Class

2 configurations
EPA model nameEngineTransmissionDriveStart-stopEPA test fuelFlex-fuel
AMG SLC433.0L 6-cyl turbo9-speed automatic9-spdRear-WheelYesPremiumNo
SLC3002.0L 4-cyl turbo9-speed automatic9-spdRear-WheelYesPremiumNo

2019 Mercedes-Benz SLC-Class

2 configurations
EPA model nameEngineTransmissionDriveStart-stopEPA test fuelFlex-fuel
AMG SLC433.0L 6-cyl turbo9-speed automatic9-spdRear-WheelYesPremiumNo
SLC3002.0L 4-cyl turbo9-speed automatic9-spdRear-WheelYesPremiumNo

2018 Mercedes-Benz SLC-Class

2 configurations
EPA model nameEngineTransmissionDriveStart-stopEPA test fuelFlex-fuel
AMG SLC433.0L 6-cyl turbo9-speed automatic9-spdRear-WheelYesPremiumNo
SLC3002.0L 4-cyl turbo9-speed automatic9-spdRear-WheelYesPremiumNo

2017 Mercedes-Benz SLC-Class

2 configurations
EPA model nameEngineTransmissionDriveStart-stopEPA test fuelFlex-fuel
AMG SLC433.0L 6-cyl turbo9-speed automatic9-spdRear-WheelYesPremiumNo
SLC3002.0L 4-cyl turbo9-speed automatic9-spdRear-WheelYesPremiumNo

Check before you buy or refuel Confirm on the window sticker, owner's manual or with the dealer. Trims and options can differ from the configurations EPA tested.

About premium fuel EPA data shows the fuel a vehicle was tested on. It does not say whether premium is required or only recommended. Your owner's manual or fuel-door label is the authority.

Before using E85 Confirm the vehicle is a flex-fuel vehicle (FFV) in the owner's manual, or look for a yellow gas cap or an "FFV" badge. Not every version of a model is flex-fuel.

Source: U.S. EPA / Department of Energy vehicle data fromFuelEconomy.gov, data as of September 29, 2026.See how we classify vehicles.

More Mercedes-Benz lists

Other Mercedes-Benz models