Mercedes-Benz SLK-Class MPG by Year & Engine (EPA)
EPA fuel-economy ratings for every rated Mercedes-Benz SLK-Class model year from 1999 to 2016 — each engine and transmission with its official city, highway and combined figures. Over these years the SLK-Class has been offered with 2.0L 4-cyl, 3.5L 6-cyl, 1.8L 4-cyl, 5.5L 8-cyl, 3.0L 6-cyl, 5.4L 8-cyl engines; the most efficient version is the 2016 (up to 27 MPG combined). Every rated gas version calls for premium gasoline. Data: U.S. Department of Energy & EPA, fueleconomy.gov; prices are live medians from VehiSales listings.
Mercedes-Benz SLK-Class fuel economy by year
| Year | Combined | Engines | Median used price | For sale |
|---|---|---|---|---|
| 2016 | 24–27 MPG | 2.0L 4-cyl, 3.5L 6-cyl | $21,599 | 6 listings |
| 2015 | 22–26 MPG | 1.8L 4-cyl, 3.5L 6-cyl, 5.5L 8-cyl | $19,311 | 14 listings |
| 2014 | 22–26 MPG | 1.8L 4-cyl, 3.5L 6-cyl, 5.5L 8-cyl | — | — |
| 2013 | 22–26 MPG | 1.8L 4-cyl, 3.5L 6-cyl, 5.5L 8-cyl | — | — |
| 2012 | 22–26 MPG | 1.8L 4-cyl, 3.5L 6-cyl, 5.5L 8-cyl | — | — |
| 2011 | 20–21 MPG | 3.5L 6-cyl, 3.0L 6-cyl | — | — |
| 2010 | 17–21 MPG | 3.5L 6-cyl, 3.0L 6-cyl, 5.5L 8-cyl | — | — |
| 2009 | 17–21 MPG | 3.5L 6-cyl, 3.0L 6-cyl, 5.4L 8-cyl | — | — |
| 2008 | 16–20 MPG | 3.0L 6-cyl, 3.5L 6-cyl, 5.4L 8-cyl | — | — |
| 2007 | 16–20 MPG | 3.0L 6-cyl, 3.5L 6-cyl, 5.4L 8-cyl | — | — |
| 2006 | 16–21 MPG | 3.0L 6-cyl, 3.5L 6-cyl, 5.4L 8-cyl | — | — |
| 2005 | 16–19 MPG | 3.5L 6-cyl, 5.4L 8-cyl | — | — |
| 2004 | 17–22 MPG | 2.3L 4-cyl, 3.2L 6-cyl | — | — |
| 2003 | 17–22 MPG | 2.3L 4-cyl, 3.2L 6-cyl | — | — |
| 2002 | 18–23 MPG | 2.3L 4-cyl, 3.2L 6-cyl | — | — |
| 2001 | 19–23 MPG | 2.3L 4-cyl, 3.2L 6-cyl | — | — |
| 2000 | 22 MPG | 2.3L 4-cyl | — | — |
| 1999 | 22 MPG | 2.3L 4-cyl | — | — |
2016 Mercedes-Benz SLK-Class: engines & MPG
The 2016 SLK-Class was EPA-rated in 2 versions (2.0L 4-cyl, 3.5L 6-cyl), with combined economy from 24 to 27 MPG. Used 2016 models currently list for a median of $21,599 on VehiSales (6 for sale).
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| SLK300 | 2.0L 4-cyl | Automatic 9-spd | Premium | 24 | 32 | 27 MPG |
| SLK350 | 3.5L 6-cyl | Automatic 7-spd | Premium | 21 | 29 | 24 MPG |
2015 Mercedes-Benz SLK-Class: engines & MPG
The 2015 SLK-Class was EPA-rated in 4 versions (1.8L 4-cyl, 3.5L 6-cyl, 5.5L 8-cyl), with combined economy from 22 to 26 MPG. Used 2015 models currently list for a median of $19,311 on VehiSales (14 for sale).
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| SLK250 | 1.8L 4-cyl | Manual 6-spd | Premium | 22 | 32 | 26 MPG |
| SLK250 | 1.8L 4-cyl | Automatic 7-spd | Premium | 23 | 32 | 26 MPG |
| SLK350 | 3.5L 6-cyl | Automatic 7-spd | Premium | 21 | 28 | 24 MPG |
| SLK55 AMG | 5.5L 8-cyl | Automatic 7-spd | Premium | 19 | 28 | 22 MPG |
2014 Mercedes-Benz SLK-Class: engines & MPG
The 2014 SLK-Class was EPA-rated in 4 versions (1.8L 4-cyl, 3.5L 6-cyl, 5.5L 8-cyl), with combined economy from 22 to 26 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| SLK250 | 1.8L 4-cyl | Automatic 7-spd | Premium | 23 | 32 | 26 MPG |
| SLK250 | 1.8L 4-cyl | Manual 6-spd | Premium | 22 | 32 | 26 MPG |
| SLK350 | 3.5L 6-cyl | Automatic 7-spd | Premium | 21 | 28 | 24 MPG |
| SLK55 AMG | 5.5L 8-cyl | Automatic 7-spd | Premium | 19 | 28 | 22 MPG |
2013 Mercedes-Benz SLK-Class: engines & MPG
The 2013 SLK-Class was EPA-rated in 4 versions (1.8L 4-cyl, 3.5L 6-cyl, 5.5L 8-cyl), with combined economy from 22 to 26 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| SLK250 | 1.8L 4-cyl | Manual 6-spd | Premium | 22 | 32 | 26 MPG |
| SLK250 | 1.8L 4-cyl | Automatic 7-spd | Premium | 23 | 32 | 26 MPG |
| SLK350 | 3.5L 6-cyl | Automatic 7-spd | Premium | 21 | 28 | 24 MPG |
| SLK55 AMG | 5.5L 8-cyl | Automatic 7-spd | Premium | 19 | 28 | 22 MPG |
2012 Mercedes-Benz SLK-Class: engines & MPG
The 2012 SLK-Class was EPA-rated in 4 versions (1.8L 4-cyl, 3.5L 6-cyl, 5.5L 8-cyl), with combined economy from 22 to 26 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| SLK250 | 1.8L 4-cyl | Manual 6-spd | Premium | 22 | 32 | 26 MPG |
| SLK250 | 1.8L 4-cyl | Automatic 7-spd | Premium | 23 | 32 | 26 MPG |
| SLK350 | 3.5L 6-cyl | Automatic 7-spd | Premium | 20 | 29 | 23 MPG |
| SLK55 AMG | 5.5L 8-cyl | Automatic 7-spd | Premium | 19 | 28 | 22 MPG |
2011 Mercedes-Benz SLK-Class: engines & MPG
The 2011 SLK-Class was EPA-rated in 4 versions (3.5L 6-cyl, 3.0L 6-cyl), with combined economy from 20 to 21 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| SLK350 | 3.5L 6-cyl | Automatic 7-spd | Premium | 19 | 25 | 21 MPG |
| SLK300 | 3.0L 6-cyl | Automatic 7-spd | Premium | 19 | 26 | 21 MPG |
| SLK350 | 3.5L 6-cyl | Manual 6-spd | Premium | 18 | 25 | 20 MPG |
| SLK300 | 3.0L 6-cyl | Manual 6-spd | Premium | 18 | 25 | 20 MPG |
2010 Mercedes-Benz SLK-Class: engines & MPG
The 2010 SLK-Class was EPA-rated in 5 versions (3.5L 6-cyl, 3.0L 6-cyl, 5.5L 8-cyl), with combined economy from 17 to 21 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| SLK300 | 3.5L 6-cyl | Automatic 7-spd | Premium | 19 | 26 | 21 MPG |
| SLK300 | 3.0L 6-cyl | Manual 6-spd | Premium | 18 | 26 | 21 MPG |
| SLK350 | 3.5L 6-cyl | Automatic 7-spd | Premium | 18 | 25 | 20 MPG |
| SLK350 | 3.5L 6-cyl | Manual 6-spd | Premium | 17 | 25 | 20 MPG |
| SLK55 AMG | 5.5L 8-cyl | Automatic 7-spd | Premium | 14 | 22 | 17 MPG |
2009 Mercedes-Benz SLK-Class: engines & MPG
The 2009 SLK-Class was EPA-rated in 5 versions (3.5L 6-cyl, 3.0L 6-cyl, 5.4L 8-cyl), with combined economy from 17 to 21 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| SLK350 | 3.5L 6-cyl | Manual 6-spd | Premium | 18 | 26 | 21 MPG |
| SLK300 | 3.0L 6-cyl | Automatic 7-spd | Premium | 19 | 26 | 21 MPG |
| SLK350 | 3.5L 6-cyl | Automatic 7-spd | Premium | 18 | 26 | 21 MPG |
| SLK300 | 3.0L 6-cyl | Manual 6-spd | Premium | 17 | 26 | 20 MPG |
| SLK55 AMG | 5.4L 8-cyl | Automatic (S7) | Premium | 14 | 22 | 17 MPG |
2008 Mercedes-Benz SLK-Class: engines & MPG
The 2008 SLK-Class was EPA-rated in 5 versions (3.0L 6-cyl, 3.5L 6-cyl, 5.4L 8-cyl), with combined economy from 16 to 20 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| SLK280 | 3.0L 6-cyl | Manual 6-spd | Premium | 17 | 25 | 20 MPG |
| SLK280 | 3.0L 6-cyl | Automatic 7-spd | Premium | 18 | 24 | 20 MPG |
| SLK350 | 3.5L 6-cyl | Manual 6-spd | Premium | 16 | 23 | 19 MPG |
| SLK350 | 3.5L 6-cyl | Automatic 7-spd | Premium | 17 | 23 | 19 MPG |
| SLK55 AMG | 5.4L 8-cyl | Automatic (S7) | Premium | 14 | 20 | 16 MPG |
2007 Mercedes-Benz SLK-Class: engines & MPG
The 2007 SLK-Class was EPA-rated in 5 versions (3.0L 6-cyl, 3.5L 6-cyl, 5.4L 8-cyl), with combined economy from 16 to 20 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| SLK280 | 3.0L 6-cyl | Manual 6-spd | Premium | 17 | 25 | 20 MPG |
| SLK280 | 3.0L 6-cyl | Automatic 7-spd | Premium | 18 | 24 | 20 MPG |
| SLK350 | 3.5L 6-cyl | Manual 6-spd | Premium | 16 | 23 | 19 MPG |
| SLK350 | 3.5L 6-cyl | Automatic 7-spd | Premium | 17 | 23 | 19 MPG |
| SLK55 AMG | 5.4L 8-cyl | Automatic (S7) | Premium | 14 | 20 | 16 MPG |
2006 Mercedes-Benz SLK-Class: engines & MPG
The 2006 SLK-Class was EPA-rated in 5 versions (3.0L 6-cyl, 3.5L 6-cyl, 5.4L 8-cyl), with combined economy from 16 to 21 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| SLK280 | 3.0L 6-cyl | Automatic 7-spd | Premium | 18 | 25 | 21 MPG |
| SLK280 | 3.0L 6-cyl | Manual 6-spd | Premium | 17 | 25 | 20 MPG |
| SLK350 | 3.5L 6-cyl | Manual 6-spd | Premium | 16 | 23 | 19 MPG |
| SLK350 | 3.5L 6-cyl | Automatic 7-spd | Premium | 17 | 22 | 19 MPG |
| SLK55 AMG | 5.4L 8-cyl | Automatic (S7) | Premium | 14 | 20 | 16 MPG |
2005 Mercedes-Benz SLK-Class: engines & MPG
The 2005 SLK-Class was EPA-rated in 3 versions (3.5L 6-cyl, 5.4L 8-cyl), with combined economy from 16 to 19 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| SLK350 | 3.5L 6-cyl | Automatic 7-spd | Premium | 17 | 23 | 19 MPG |
| SLK350 | 3.5L 6-cyl | Manual 6-spd | Premium | 16 | 23 | 19 MPG |
| SLK55 AMG | 5.4L 8-cyl | Automatic (S7) | Premium | 14 | 20 | 16 MPG |
2004 Mercedes-Benz SLK-Class: engines & MPG
The 2004 SLK-Class was EPA-rated in 5 versions (2.3L 4-cyl, 3.2L 6-cyl), with combined economy from 17 to 22 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| SLK230 | 2.3L 4-cyl | Automatic 5-spd | Premium | 19 | 26 | 22 MPG |
| SLK230 | 2.3L 4-cyl | Manual 6-spd | Premium | 19 | 26 | 21 MPG |
| SLK320 | 3.2L 6-cyl | Automatic 5-spd | Premium | 18 | 24 | 20 MPG |
| SLK320 | 3.2L 6-cyl | Manual 6-spd | Premium | 17 | 24 | 19 MPG |
| SLK32 AMG | 3.2L 6-cyl | Automatic 5-spd | Premium | 15 | 21 | 17 MPG |
2003 Mercedes-Benz SLK-Class: engines & MPG
The 2003 SLK-Class was EPA-rated in 5 versions (2.3L 4-cyl, 3.2L 6-cyl), with combined economy from 17 to 22 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| SLK230 Kompressor | 2.3L 4-cyl | Automatic 5-spd | Premium | 19 | 26 | 22 MPG |
| SLK320 | 3.2L 6-cyl | Automatic 5-spd | Premium | 18 | 24 | 20 MPG |
| SLK230 Kompressor | 2.3L 4-cyl | Manual 6-spd | Premium | 17 | 25 | 20 MPG |
| SLK320 | 3.2L 6-cyl | Manual 6-spd | Premium | 15 | 24 | 18 MPG |
| SLK32 AMG | 3.2L 6-cyl | Automatic 5-spd | Premium | 15 | 21 | 17 MPG |
2002 Mercedes-Benz SLK-Class: engines & MPG
The 2002 SLK-Class was EPA-rated in 5 versions (2.3L 4-cyl, 3.2L 6-cyl), with combined economy from 18 to 23 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| SLK230 Kompressor | 2.3L 4-cyl | Automatic 5-spd | Premium | 20 | 27 | 23 MPG |
| SLK230 Kompressor | 2.3L 4-cyl | Manual 6-spd | Premium | 18 | 27 | 21 MPG |
| SLK320 | 3.2L 6-cyl | Automatic 5-spd | Premium | 18 | 24 | 20 MPG |
| SLK320 | 3.2L 6-cyl | Manual 6-spd | Premium | 15 | 24 | 18 MPG |
| SLK32 AMG | 3.2L 6-cyl | Automatic 5-spd | Premium | 16 | 22 | 18 MPG |
2001 Mercedes-Benz SLK-Class: engines & MPG
The 2001 SLK-Class was EPA-rated in 4 versions (2.3L 4-cyl, 3.2L 6-cyl), with combined economy from 19 to 23 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| SLK230 Kompressor | 2.3L 4-cyl | Automatic 5-spd | Premium | 20 | 27 | 23 MPG |
| SLK320 | 3.2L 6-cyl | Automatic 5-spd | Premium | 18 | 25 | 21 MPG |
| SLK230 Kompressor | 2.3L 4-cyl | Manual 6-spd | Premium | 18 | 27 | 21 MPG |
| SLK320 | 3.2L 6-cyl | Manual 6-spd | Premium | 16 | 25 | 19 MPG |
2000 Mercedes-Benz SLK-Class: engines & MPG
The 2000 SLK-Class was EPA-rated in 2 versions (2.3L 4-cyl), with combined economy of 22 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| SLK230 Kompressor | 2.3L 4-cyl | Manual 5-spd | Premium | 19 | 28 | 22 MPG |
| SLK230 Kompressor | 2.3L 4-cyl | Automatic 5-spd | Premium | 20 | 27 | 22 MPG |
1999 Mercedes-Benz SLK-Class: engines & MPG
The 1999 SLK-Class was EPA-rated in 2 versions (2.3L 4-cyl), with combined economy of 22 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| SLK230 Kompressor | 2.3L 4-cyl | Manual 5-spd | Premium | 19 | 28 | 22 MPG |
| SLK230 Kompressor | 2.3L 4-cyl | Automatic 5-spd | Premium | 19 | 27 | 22 MPG |
Frequently asked questions
What MPG does a Mercedes-Benz SLK-Class get?
Depending on year and engine, EPA combined ratings for the SLK-Class range from 19 to 27 MPG. The most efficient rated version is the 2016 model year.
What engines does the 2016 Mercedes-Benz SLK-Class have?
The 2016 SLK-Class was EPA-rated with 2.0L 4-cyl, 3.5L 6-cyl engines — see the 2016 table above for each version's exact city/highway figures.
Does the Mercedes-Benz SLK-Class require premium gas?
Yes — every EPA-rated gas SLK-Class version specifies premium gasoline.
https://vehisales.com/research/fuel-economy/mercedes-benz/slk-class.
See also: Mercedes-Benz SLK-Class hub — live listings, prices & reliability · Most fuel-efficient cars by segment · Model price trends. Media inquiries: [email protected].