- Newest year: 2011
- Gas
- Small cars
2010-2011 Mercedes-Benz CLS-Class MPG & Fuel Cost
2 model years · 14–16 MPG combined
15,000 mi/yr · premium gasoline $5.36/gal (U.S. average, Sep 2026)
Cheaper to fuel than 1 of 10 small car configurations, MY2011. Ranked against all rated configurations, not sales-weighted.
2010-2011 Mercedes-Benz CLS-Class at a glance
The 2010-2011 Mercedes-Benz CLS-Class covers 2 model years in the EPA database (4 configurations in all), rated 14–16 MPG combined. The newest model year, 2011, costs about $4,870 a year to fuel for its most efficient version, the CLS550 5.5L 8-cyl RWD (16 MPG), at premium gasoline $5.36/gal (U.S. average, Sep 2026). EPA changed the ratings in 2011.
2010-2011 Mercedes-Benz CLS-Class by model year
What the 2011 CLS550 5.5L 8-cyl RWD costs to drive
Per month
$406
$4,870 a year ÷ 12
Per 25 miles
$8.12
Per 100 miles
$32.47
Five years
$24,350
5 × the yearly cost, prices held at today's level
vs the small car median
$1,590more a year
Class median $3,280 a year, MY2011
Based on 15,000 miles a year and premium gasoline $5.36/gal (U.S. average, Sep 2026).
2011 Mercedes-Benz CLS-Class MPG
Versus 2010: The most efficient configuration stays at 16 MPG. Its annual cost goes from $5,020 to $4,870, $150 less.
Gas configurations (2)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| CLS550 (Most efficient) | 5.5L 8-cyl | RWD | 14 | 21 | 16 | $4,870 |
| CLS63 AMG | 6.3L 8-cyl | RWD | 12 | 18 | 14 | $5,660 |
2 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2010 Mercedes-Benz CLS-Class MPG
14–16 MPG · $5,020–$5,740/yr
Gas configurations (2)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| CLS550 (Most efficient) | 5.5L 8-cyl | RWD | 14 | 21 | 16 | $5,020 |
| CLS63 AMG | 6.3L 8-cyl | RWD | 12 | 18 | 14 | $5,740 |
2 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
Fuel cost by state
Yearly cost of the CLS550 5.5L 8-cyl RWD: $5,810 in California and $4,230 in Texas, a $1,580 difference.
- California $5,810
- Washington $5,460
- New York $4,810
- Florida $4,450
- Texas $4,230
Similar cars
Closest combined MPG among MY2011 small car models.
Generations
Frequently asked questions
What gas mileage does the 2010-2011 Mercedes-Benz CLS-Class get?
EPA rates the 2010-2011 Mercedes-Benz CLS-Class at 14–16 MPG combined across 4 configurations and 2 model years. The most efficient version, the 2011 CLS550 5.5L 8-cyl RWD, is rated 16 MPG (14 city, 21 highway).
Which years had the best MPG in the 2010-2011 Mercedes-Benz CLS-Class?
Every model year of the 2010-2011 Mercedes-Benz CLS-Class tops out at 16 MPG combined, so no year is better than another.
Did EPA ratings change during the 2010-2011 Mercedes-Benz CLS-Class?
Yes. Ratings changed in 2011.
How does the 2010-2011 Mercedes-Benz CLS-Class compare with the previous generation?
The previous generation (2007-2009 Mercedes-Benz CLS-Class) is rated 14–16 MPG combined and costs $5,020–$5,740 a year to fuel; the 2010-2011 model is rated 14–16 MPG and costs $4,870–$5,740 a year.
How much does it cost to fuel a 2011 Mercedes-Benz CLS-Class per year?
Driving 15,000 miles a year at premium gasoline $5.36/gal (U.S. average, Sep 2026), the CLS550 5.5L 8-cyl RWD costs about $4,870 a year. Across all 2 configurations the cost runs $4,870–$5,660 a year. That is a $790 difference between the cheapest and the costliest configuration.
How much does it cost to drive a 2011 Mercedes-Benz CLS-Class 100 miles?
About $32.47 per 100 miles for the CLS550 5.5L 8-cyl RWD at premium gasoline $5.36/gal (U.S. average, Sep 2026), and between $32.47 and $37.73 across all configurations. That is the annual cost over 15,000 miles divided by 150.
Is the 2011 Mercedes-Benz CLS-Class more efficient in the city or on the highway?
The CLS550 5.5L 8-cyl RWD is rated 14 city and 21 highway MPG, so it is more efficient on the highway, by 7 MPG.
How does the 2011 Mercedes-Benz CLS-Class compare with other small car configurations?
The CLS550 5.5L 8-cyl RWD costs about $4,870 a year to fuel, $1,590 more than the class median of $3,280, and less than 1 of 10 small car configurations. The comparison covers all 313 rated small car configurations for MY2011, not weighted by sales.
Is the 2011 Mercedes-Benz CLS-Class different from the 2010 model?
The most efficient configuration stays at 16 MPG. Its annual cost goes from $5,020 to $4,870, $150 less. EPA lists 2 configurations for 2011 against 2 configurations for 2010. See the 2010 Mercedes-Benz CLS-Class for that year.