Mercedes-Benz CLS-Class MPG by Year & Engine (EPA)
EPA fuel-economy ratings for every rated Mercedes-Benz CLS-Class model year from 2006 to 2023 — each engine and transmission with its official city, highway and combined figures. Over these years the CLS-Class has been offered with 3.0L 6-cyl, 4.7L 8-cyl, 5.5L 8-cyl, 6.3L 8-cyl, 6.2L 8-cyl, 5.0L 8-cyl engines; the most efficient version is the 2021 (up to 26 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 CLS-Class fuel economy by year
| Year | Combined | Engines | Median used price | For sale |
|---|---|---|---|---|
| 2023 | 25 MPG | 3.0L 6-cyl | $54,992 | 7 listings |
| 2022 | 25 MPG | 3.0L 6-cyl | $44,900 | 11 listings |
| 2021 | 25–26 MPG | 3.0L 6-cyl | $37,983 | 9 listings |
| 2020 | 26 MPG | 3.0L 6-cyl | $38,000 | 14 listings |
| 2019 | 26 MPG | 3.0L 6-cyl | $31,393 | 15 listings |
| 2018 | 20–21 MPG | 4.7L 8-cyl | $25,398 | 5 listings |
| 2017 | 20–21 MPG | 4.7L 8-cyl | $29,412 | 10 listings |
| 2016 | 20–24 MPG | 3.0L 6-cyl, 4.7L 8-cyl | $20,495 | 15 listings |
| 2015 | 18–24 MPG | 3.0L 6-cyl, 4.7L 8-cyl, 5.5L 8-cyl | $16,999 | 10 listings |
| 2014 | 18–20 MPG | 4.7L 8-cyl, 5.5L 8-cyl | — | — |
| 2013 | 19–20 MPG | 4.7L 8-cyl, 5.5L 8-cyl | — | — |
| 2012 | 19–20 MPG | 4.7L 8-cyl, 5.5L 8-cyl | — | — |
| 2011 | 14–16 MPG | 5.5L 8-cyl, 6.3L 8-cyl | — | — |
| 2010 | 14–16 MPG | 5.5L 8-cyl, 6.3L 8-cyl | — | — |
| 2009 | 14–16 MPG | 5.5L 8-cyl, 6.2L 8-cyl | — | — |
| 2008 | 14–16 MPG | 5.5L 8-cyl, 6.2L 8-cyl | — | — |
| 2007 | 14–16 MPG | 5.5L 8-cyl, 6.2L 8-cyl | — | — |
| 2006 | 15–16 MPG | 5.0L 8-cyl, 5.4L 8-cyl | — | — |
2023 Mercedes-Benz CLS-Class: engines & MPG
The 2023 CLS-Class was EPA-rated in 1 version (3.0L 6-cyl), with combined economy of 25 MPG. Used 2023 models currently list for a median of $54,992 on VehiSales (7 for sale).
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| CLS450 4matic | 3.0L 6-cyl | Automatic 9-spd | Premium | 22 | 30 | 25 MPG |
2022 Mercedes-Benz CLS-Class: engines & MPG
The 2022 CLS-Class was EPA-rated in 1 version (3.0L 6-cyl), with combined economy of 25 MPG. Used 2022 models currently list for a median of $44,900 on VehiSales (11 for sale).
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| CLS450 4matic | 3.0L 6-cyl | Automatic 9-spd | Premium | 22 | 30 | 25 MPG |
2021 Mercedes-Benz CLS-Class: engines & MPG
The 2021 CLS-Class was EPA-rated in 2 versions (3.0L 6-cyl), with combined economy from 25 to 26 MPG. Used 2021 models currently list for a median of $37,983 on VehiSales (9 for sale).
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| CLS450 | 3.0L 6-cyl | Automatic 9-spd | Premium | 23 | 30 | 26 MPG |
| CLS450 4matic | 3.0L 6-cyl | Automatic 9-spd | Premium | 22 | 29 | 25 MPG |
2020 Mercedes-Benz CLS-Class: engines & MPG
The 2020 CLS-Class was EPA-rated in 2 versions (3.0L 6-cyl), with combined economy of 26 MPG. Used 2020 models currently list for a median of $38,000 on VehiSales (14 for sale).
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| CLS450 | 3.0L 6-cyl | Automatic 9-spd | Premium | 24 | 31 | 26 MPG |
| CLS450 4matic | 3.0L 6-cyl | Automatic 9-spd | Premium | 23 | 30 | 26 MPG |
2019 Mercedes-Benz CLS-Class: engines & MPG
The 2019 CLS-Class was EPA-rated in 2 versions (3.0L 6-cyl), with combined economy of 26 MPG. Used 2019 models currently list for a median of $31,393 on VehiSales (15 for sale).
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| CLS450 4matic | 3.0L 6-cyl | Automatic 9-spd | Premium | 23 | 30 | 26 MPG |
| CLS450 | 3.0L 6-cyl | Automatic 9-spd | Premium | 24 | 31 | 26 MPG |
2018 Mercedes-Benz CLS-Class: engines & MPG
The 2018 CLS-Class was EPA-rated in 2 versions (4.7L 8-cyl), with combined economy from 20 to 21 MPG. Used 2018 models currently list for a median of $25,398 on VehiSales (5 for sale).
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| CLS550 | 4.7L 8-cyl | Automatic 9-spd | Premium | 18 | 26 | 21 MPG |
| CLS550 4matic | 4.7L 8-cyl | Automatic 9-spd | Premium | 17 | 25 | 20 MPG |
2017 Mercedes-Benz CLS-Class: engines & MPG
The 2017 CLS-Class was EPA-rated in 2 versions (4.7L 8-cyl), with combined economy from 20 to 21 MPG. Used 2017 models currently list for a median of $29,412 on VehiSales (10 for sale).
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| CLS550 | 4.7L 8-cyl | Automatic 9-spd | Premium | 18 | 26 | 21 MPG |
| CLS550 4matic | 4.7L 8-cyl | Automatic 9-spd | Premium | 17 | 25 | 20 MPG |
2016 Mercedes-Benz CLS-Class: engines & MPG
The 2016 CLS-Class was EPA-rated in 4 versions (3.0L 6-cyl, 4.7L 8-cyl), with combined economy from 20 to 24 MPG. Used 2016 models currently list for a median of $20,495 on VehiSales (15 for sale).
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| CLS400 | 3.0L 6-cyl | Automatic 7-spd | Premium | 20 | 30 | 24 MPG |
| CLS400 4matic | 3.0L 6-cyl | Automatic 7-spd | Premium | 19 | 26 | 22 MPG |
| CLS550 4matic | 4.7L 8-cyl | Automatic 9-spd | Premium | 17 | 25 | 20 MPG |
| CLS550 | 4.7L 8-cyl | Automatic 9-spd | Premium | 18 | 26 | 20 MPG |
2015 Mercedes-Benz CLS-Class: engines & MPG
The 2015 CLS-Class was EPA-rated in 5 versions (3.0L 6-cyl, 4.7L 8-cyl, 5.5L 8-cyl), with combined economy from 18 to 24 MPG. Used 2015 models currently list for a median of $16,999 on VehiSales (10 for sale).
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| CLS400 | 3.0L 6-cyl | Automatic 7-spd | Premium | 20 | 29 | 24 MPG |
| CLS400 4matic | 3.0L 6-cyl | Automatic 7-spd | Premium | 19 | 26 | 22 MPG |
| CLS550 | 4.7L 8-cyl | Automatic 9-spd | Premium | 18 | 26 | 20 MPG |
| CLS550 4matic | 4.7L 8-cyl | Automatic 7-spd | Premium | 17 | 24 | 19 MPG |
| CLS63 AMG S 4matic | 5.5L 8-cyl | Automatic 7-spd | Premium | 16 | 22 | 18 MPG |
2014 Mercedes-Benz CLS-Class: engines & MPG
The 2014 CLS-Class was EPA-rated in 6 versions (4.7L 8-cyl, 5.5L 8-cyl), with combined economy from 18 to 20 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| CLS550 | 4.7L 8-cyl | Automatic 7-spd | Premium | 17 | 25 | 20 MPG |
| CLS63 AMG | 5.5L 8-cyl | Automatic 7-spd | Premium | 16 | 25 | 19 MPG |
| CLS550 4matic | 4.7L 8-cyl | Automatic 7-spd | Premium | 17 | 24 | 19 MPG |
| CLS63 AMG S | 5.5L 8-cyl | Automatic 7-spd | Premium | 16 | 25 | 19 MPG |
| CLS63 AMG S 4matic | 5.5L 8-cyl | Automatic 7-spd | Premium | 16 | 22 | 18 MPG |
| CLS63 AMG 4matic | 5.5L 8-cyl | Automatic 7-spd | Premium | 16 | 22 | 18 MPG |
2013 Mercedes-Benz CLS-Class: engines & MPG
The 2013 CLS-Class was EPA-rated in 3 versions (4.7L 8-cyl, 5.5L 8-cyl), with combined economy from 19 to 20 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| CLS550 | 4.7L 8-cyl | Automatic 7-spd | Premium | 17 | 25 | 20 MPG |
| CLS63 AMG | 5.5L 8-cyl | Automatic 7-spd | Premium | 16 | 25 | 19 MPG |
| CLS550 4matic | 4.7L 8-cyl | Automatic 7-spd | Premium | 16 | 25 | 19 MPG |
2012 Mercedes-Benz CLS-Class: engines & MPG
The 2012 CLS-Class was EPA-rated in 3 versions (4.7L 8-cyl, 5.5L 8-cyl), with combined economy from 19 to 20 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| CLS550 | 4.7L 8-cyl | Automatic 7-spd | Premium | 17 | 25 | 20 MPG |
| CLS63 AMG | 5.5L 8-cyl | Automatic 7-spd | Premium | 16 | 25 | 19 MPG |
| CLS550 4matic | 4.7L 8-cyl | Automatic 7-spd | Premium | 16 | 25 | 19 MPG |
2011 Mercedes-Benz CLS-Class: engines & MPG
The 2011 CLS-Class was EPA-rated in 2 versions (5.5L 8-cyl, 6.3L 8-cyl), with combined economy from 14 to 16 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| CLS550 | 5.5L 8-cyl | Automatic 7-spd | Premium | 14 | 21 | 16 MPG |
| CLS63 AMG | 6.3L 8-cyl | Automatic 7-spd | Premium | 12 | 18 | 14 MPG |
2010 Mercedes-Benz CLS-Class: engines & MPG
The 2010 CLS-Class was EPA-rated in 2 versions (5.5L 8-cyl, 6.3L 8-cyl), with combined economy from 14 to 16 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| CLS550 | 5.5L 8-cyl | Automatic 7-spd | Premium | 14 | 21 | 16 MPG |
| CLS63 AMG | 6.3L 8-cyl | Automatic 7-spd | Premium | 12 | 18 | 14 MPG |
2009 Mercedes-Benz CLS-Class: engines & MPG
The 2009 CLS-Class was EPA-rated in 2 versions (5.5L 8-cyl, 6.2L 8-cyl), with combined economy from 14 to 16 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| CLS550 | 5.5L 8-cyl | Automatic 7-spd | Premium | 14 | 21 | 16 MPG |
| CLS63 AMG | 6.2L 8-cyl | Automatic (S7) | Premium | 12 | 18 | 14 MPG |
2008 Mercedes-Benz CLS-Class: engines & MPG
The 2008 CLS-Class was EPA-rated in 2 versions (5.5L 8-cyl, 6.2L 8-cyl), with combined economy from 14 to 16 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| CLS550 | 5.5L 8-cyl | Automatic 7-spd | Premium | 14 | 21 | 16 MPG |
| CLS63 AMG | 6.2L 8-cyl | Automatic (S7) | Premium | 12 | 18 | 14 MPG |
2007 Mercedes-Benz CLS-Class: engines & MPG
The 2007 CLS-Class was EPA-rated in 2 versions (5.5L 8-cyl, 6.2L 8-cyl), with combined economy from 14 to 16 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| CLS550 | 5.5L 8-cyl | Automatic 7-spd | Premium | 14 | 20 | 16 MPG |
| CLS63 AMG | 6.2L 8-cyl | Automatic (S7) | Premium | 12 | 18 | 14 MPG |
2006 Mercedes-Benz CLS-Class: engines & MPG
The 2006 CLS-Class was EPA-rated in 2 versions (5.0L 8-cyl, 5.4L 8-cyl), with combined economy from 15 to 16 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| CLS500 | 5.0L 8-cyl | Automatic 7-spd | Premium | 14 | 20 | 16 MPG |
| CLS55 AMG | 5.4L 8-cyl | Automatic (S5) | Premium | 13 | 19 | 15 MPG |
Frequently asked questions
What MPG does a Mercedes-Benz CLS-Class get?
Depending on year and engine, EPA combined ratings for the CLS-Class range from 16 to 26 MPG. The most efficient rated version is the 2021 model year.
What engines does the 2023 Mercedes-Benz CLS-Class have?
The 2023 CLS-Class was EPA-rated with 3.0L 6-cyl engines — see the 2023 table above for each version's exact city/highway figures.
Does the Mercedes-Benz CLS-Class require premium gas?
Yes — every EPA-rated gas CLS-Class version specifies premium gasoline.
Is there a hybrid or electric CLS-Class?
Yes — the ratings above include hybrid versions; look for them in the per-year tables.
https://vehisales.com/research/fuel-economy/mercedes-benz/cls-class.
See also: Mercedes-Benz CLS-Class hub — live listings, prices & reliability · Used Mercedes-Benz CLS-Class prices by year · Most fuel-efficient cars by segment · Model price trends. Media inquiries: [email protected].