Mercedes-Benz S-Class MPG by Year
Here's the official EPA Mercedes-Benz S-Class MPG for every model year from 1994 to 2027.
S-Class MPG by Year and Version
The EPA has rated 224 configurations of the S-Class across gas, hybrid, plug-in hybrid and diesel versions. Pick a year to see each engine and drivetrain.
| Version | Engine | Transmission | Drive | City | Hwy | Combined | EPA |
|---|---|---|---|---|---|---|---|
| S500 4maticMild hybridPremium Gasoline | 3.0L 6-cyl | Auto 9-spd | AWD | 20 | 29 | 23 | View |
| S580 4matic MaybachMild hybridPremium Gasoline | 4.0L 8-cyl | Auto 9-spd | AWD | 16 | 27 | 20 | View |
| S580 4maticMild hybridPremium Gasoline | 4.0L 8-cyl | Auto 9-spd | AWD | 17 | 27 | 20 | View |
| Maybach S680 4maticPremium Gasoline | 6.0L 12-cyl | Auto 9-spd | AWD | 12 | 20 | 15 | View |
Plug-in hybrid rows show the gas-only rating.
S-Class MPG Over the Years
Each bar shows the range of combined MPG across every S-Class configuration the EPA rated that year, from the thirstiest version to the most efficient. Hover or tap a year to see the numbers.
Years When S-Class Fuel Economy Changed
Most years look a lot like the one before. These are the years where the EPA numbers moved in a way that matters if you're shopping for a used S-Class.
- 2003: Four-wheel drive becomes available. The best four-wheel drive version is rated at 17 MPG combined.
- 2010: The first hybrid S-Class shows up in the EPA data. Its 21 MPG combined rating tops the previous year's best of 17 MPG.
- 2015: A plug-in hybrid version arrives. Its 26 MPG combined rating on gas alone tops the previous year's best of 20 MPG.
How the S-Class Compares
The EPA rated 16 large cars for 2026. The best S-Class version, at 23 MPG combined, ties for 8th with 1 other model of 16. Combined ratings in the class run from 14 to 51 MPG, with a median of 23. Plug-in hybrids and electric models are ranked separately.
| Rank | Model | Combined |
|---|---|---|
| 1 | Hyundai Sonata | 51 MPG |
| 2 | Honda Accord | 48 MPG |
| 2 | Honda Civic | 48 MPG |
| 4 | Acura Integra | 32 MPG |
| 5 | Kia K4 | 30 MPG |
| 8 | Mercedes-Benz S-Class | 23 MPG |
What Does a S-Class Cost to Fuel?
Pick a S-Class, then enter your gas price and how much you drive. The math uses the EPA city and highway ratings, weighted by how much of your driving happens in each.
S-Class MPG Questions
Which S-Class year gets the best gas mileage?
The 2015 to 2017 S550e holds the top EPA rating at 26 MPG combined (24 city, 30 highway). That's its gas-only rating as a plug-in hybrid. Among 2026 models, the S500 4matic is rated at 23 MPG combined.
What's the best gas mileage from a non-hybrid S-Class?
The 2024 and 2025 S500 4matic with the 3.0L 6-cylinder and all-wheel drive is rated at 24 MPG combined (21 city, 31 highway).
Is there still a gas-only S-Class?
Yes. The 2026 S-Class lineup includes 4 gas-only versions, rated 15 to 23 MPG combined.
Does four-wheel drive hurt S-Class fuel economy?
Not on the 2021 model. On the 2021 S-Class, the best rear-wheel drive version is rated at 20 MPG combined and the best four-wheel drive version at 24 MPG.
Why doesn't my S-Class match the EPA numbers?
EPA ratings come from standardized lab tests so every car is measured the same way. Your results depend on speed, climate, idling, cargo, tire pressure and upkeep. The ratings are best for comparing one car against another. To track your own numbers, try the MPG calculator.
Keep Going
Where These Numbers Come From
Cedrick Reese built this page from the EPA fuel economy file published on fueleconomy.gov. It has 224 ratings for the S-Class from 1994 to 2027, and every one of them is shown in the table. Each row in the table links to the matching EPA vehicle record, so you can check any figure against the source. Ratings from before 2008 use the EPA's revised estimates, which put older vehicles on the same scale as newer ones. Plug-in hybrid figures in the table are the gas-only ratings, since those are the ones you can compare with a regular car. The page is rebuilt whenever the EPA publishes an updated file, which picks up new model years and any rating corrections. The cost calculator uses the gas price you enter rather than a national average, so the result fits where you live.
Ratings on this page come from the EPA file downloaded on October 1, 2026.
Sources
- Download Fuel Economy Data, fueleconomy.gov, U.S. DOE and EPA
- Vehicle data field definitions, including the revised 1984-2007 estimates, fueleconomy.gov
- Factors that affect fuel economy, fueleconomy.gov