Mercedes-Benz SLK-Class
Transmission, start-stop, premium fuel and flex-fuel by model year, 2010–2016
TransmissionThe 2016 Mercedes-Benz SLK-Class is offered with a 7-speed automatic or a 9-speed automatic, depending on configuration.
Auto start-stopYes. Every 2016 Mercedes-Benz SLK-Class configuration EPA tested has auto start-stop.
Premium fuelEPA tested the 2016 Mercedes-Benz SLK-Class on premium fuel; your owner's manual or fuel-door label is the authority.
Flex-fuel (E85)No. EPA does not list any 2016 Mercedes-Benz SLK-Class configuration as a flex-fuel vehicle (FFV).
2016 at a glance
3 configurations tested by EPA
EPA lists a manual transmission for the Mercedes-Benz SLK-Class in these model years: 2010–2015 (6 years of data from 2010–2016).
Mercedes-Benz SLK-Class features by model year
Configurations by year
2016 Mercedes-Benz SLK-Class
3 configurations
| EPA model name | Engine | Transmission | Drive | Start-stop | EPA test fuel | Flex-fuel |
|---|---|---|---|---|---|---|
| AMG SLK55 | 5.5L 8-cyl | 7-speed automatic7-spd | Rear-Wheel | Yes | Premium | No |
| SLK300 | 2.0L 4-cyl turbo | 9-speed automatic9-spd | Rear-Wheel | Yes | Premium | No |
| SLK350 | 3.5L 6-cyl | 7-speed automatic7-spd | Rear-Wheel | Yes | Premium | No |
2015 Mercedes-Benz SLK-Class
4 configurations
| EPA model name | Engine | Transmission | Drive | Start-stop | EPA test fuel | Flex-fuel |
|---|---|---|---|---|---|---|
| SLK250 | 1.8L 4-cyl turbo | 7-speed automatic7-spd | Rear-Wheel | No | Premium | No |
| SLK250 | 1.8L 4-cyl turbo | 6-speed manual6-spd | Rear-Wheel | No | Premium | No |
| SLK350 | 3.5L 6-cyl | 7-speed automatic7-spd | Rear-Wheel | Yes | Premium | No |
| SLK55 AMG | 5.5L 8-cyl | 7-speed automatic7-spd | Rear-Wheel | Yes | Premium | No |
2014 Mercedes-Benz SLK-Class
4 configurations
| EPA model name | Engine | Transmission | Drive | Start-stop | EPA test fuel | Flex-fuel |
|---|---|---|---|---|---|---|
| SLK250 | 1.8L 4-cyl turbo | 7-speed automatic7-spd | Rear-Wheel | No | Premium | No |
| SLK250 | 1.8L 4-cyl turbo | 6-speed manual6-spd | Rear-Wheel | No | Premium | No |
| SLK350 | 3.5L 6-cyl | 7-speed automatic7-spd | Rear-Wheel | Yes | Premium | No |
| SLK55 AMG | 5.5L 8-cyl | 7-speed automatic7-spd | Rear-Wheel | Yes | Premium | No |
2013 Mercedes-Benz SLK-Class
4 configurations
| EPA model name | Engine | Transmission | Drive | Start-stop | EPA test fuel | Flex-fuel |
|---|---|---|---|---|---|---|
| SLK250 | 1.8L 4-cyl turbo | 7-speed automatic7-spd | Rear-Wheel | No | Premium | No |
| SLK250 | 1.8L 4-cyl turbo | 6-speed manual6-spd | Rear-Wheel | No | Premium | No |
| SLK350 | 3.5L 6-cyl | 7-speed automatic7-spd | Rear-Wheel | No | Premium | No |
| SLK55 AMG | 5.5L 8-cyl | 7-speed automatic7-spd | Rear-Wheel | No | Premium | No |
2012 Mercedes-Benz SLK-Class
4 configurations
| EPA model name | Engine | Transmission | Drive | Start-stop | EPA test fuel | Flex-fuel |
|---|---|---|---|---|---|---|
| SLK250 | 1.8L 4-cyl turbo | 7-speed automatic7-spd | Rear-Wheel | Not reported | Premium | No |
| SLK250 | 1.8L 4-cyl turbo | 6-speed manual6-spd | Rear-Wheel | Not reported | Premium | No |
| SLK350 | 3.5L 6-cyl | 7-speed automatic7-spd | Rear-Wheel | Not reported | Premium | No |
| SLK55 AMG | 5.5L 8-cyl | 7-speed automatic7-spd | Rear-Wheel | Not reported | Premium | No |
2011 Mercedes-Benz SLK-Class
4 configurations
| EPA model name | Engine | Transmission | Drive | Start-stop | EPA test fuel | Flex-fuel |
|---|---|---|---|---|---|---|
| SLK300 | 3.0L 6-cyl | 7-speed automatic7-spd | Rear-Wheel | Not reported | Premium | No |
| SLK300 | 3.0L 6-cyl | 6-speed manual6-spd | Rear-Wheel | Not reported | Premium | No |
| SLK350 | 3.5L 6-cyl | 7-speed automatic7-spd | Rear-Wheel | Not reported | Premium | No |
| SLK350 | 3.5L 6-cyl | 6-speed manual6-spd | Rear-Wheel | Not reported | Premium | No |
2010 Mercedes-Benz SLK-Class
5 configurations
| EPA model name | Engine | Transmission | Drive | Start-stop | EPA test fuel | Flex-fuel |
|---|---|---|---|---|---|---|
| SLK300 | 3.0L 6-cyl | 6-speed manual6-spd | Rear-Wheel | Not reported | Premium | No |
| SLK300 | 3.5L 6-cyl | 7-speed automatic7-spd | Rear-Wheel | Not reported | Premium | No |
| SLK350 | 3.5L 6-cyl | 7-speed automatic7-spd | Rear-Wheel | Not reported | Premium | No |
| SLK350 | 3.5L 6-cyl | 6-speed manual6-spd | Rear-Wheel | Not reported | Premium | No |
| SLK55 AMG | 5.5L 8-cyl | 7-speed automatic7-spd | Rear-Wheel | Not reported | Premium | No |
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
- Mercedes-Benz models without a CVT
- Mercedes-Benz models with a manual transmission
- Mercedes-Benz models with an automated manual transmission
- Mercedes-Benz models with a conventional automatic transmission
- Mercedes-Benz models with auto start-stop
- Mercedes-Benz models without auto start-stop
- Mercedes-Benz models EPA tested on premium fuel
- Mercedes-Benz models that are flex-fuel (E85)
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