Mercedes-Benz CLS450 4matic MPG by year — every rating on record
The Mercedes-Benz CLS450 4matic has a combined EPA fuel economy rating for 5 model years, from 2019 to 2023. Across those years its best rated version returned 26 mpg (2019) and its thirstiest returned 25 mpg (2021). The EPA record holds 5 configurations for this nameplate, most recently a Compact Cars.
Year-by-year EPA ratings
| Model year | Configurations | Best combined | Worst combined | Class rank that year | Drivetrains | Fuel | EPA class |
|---|---|---|---|---|---|---|---|
| 2019 | 1 | 26 mpg | 26 mpg | #50 of 86 (42th pct) | 4-Wheel Drive | Premium | Compact Cars |
| 2020 | 1 | 26 mpg | 26 mpg | #46 of 79 (42th pct) | 4-Wheel Drive | Premium | Compact Cars |
| 2021 | 1 | 25 mpg | 25 mpg | #58 of 79 (27th pct) | 4-Wheel Drive | Premium | Compact Cars |
| 2022 | 1 | 25 mpg | 25 mpg | #59 of 73 (19th pct) | 4-Wheel Drive | Premium | Compact Cars |
| 2023 | 1 | 25 mpg | 25 mpg | #55 of 72 (24th pct) | All-Wheel Drive | Premium | Compact Cars |
Where it has stood in its class
Ranked against every other nameplate the EPA filed under the same class that year. The Mercedes-Benz CLS450 4matic placed highest in 2020 at #46 of 79, and lowest in 2022 at #59 of 73. It spent 0 of its 5 ranked years in the top half of its class.
Every configuration on record
All 5 configurations EPA lists for this nameplate, newest first.
| Year | Configuration | Engine detail | City | Highway | Combined | Gallons/yr | Barrels/yr | EPA fuel cost/yr | CO2 g/mi | GHG |
|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | 3.0L 6-cyl All-Wheel Drive Automatic 9-spd Premium | SIDI; Mild Hybrid, turbocharged, Hybrid, start-stop | 22 | 30 | 25 | 460.0 | 11.9 | $3,100 | 357 | 5/10 |
| 2022 | 3.0L 6-cyl 4-Wheel Drive Automatic 9-spd Premium | SIDI; Mild Hybrid, turbocharged, Hybrid, start-stop | 22 | 30 | 25 | 460.0 | 11.9 | $3,100 | 357 | 5/10 |
| 2021 | 3.0L 6-cyl 4-Wheel Drive Automatic 9-spd Premium | SIDI; Mild Hybrid, turbocharged, Hybrid, start-stop | 22 | 29 | 25 | 460.0 | 11.9 | $3,100 | 357 | 5/10 |
| 2020 | 3.0L 6-cyl 4-Wheel Drive Automatic 9-spd Premium | SIDI; Mild Hybrid, turbocharged, Hybrid, start-stop | 23 | 30 | 26 | 442.3 | 11.4 | $3,000 | 343 | 5/10 |
| 2019 | 3.0L 6-cyl 4-Wheel Drive Automatic 9-spd Premium | SIDI; Mild Hybrid, turbocharged, Hybrid, start-stop | 23 | 30 | 26 | 442.3 | 11.4 | $3,000 | 343 | 5/10 |
How the rating has moved between model years
Comparing the best-rated configuration of each year. 0 of 1 year-over-year steps improved the top rating.
| Change | Best combined | Delta | Gallons a year at the newer rating |
|---|---|---|---|
| 2020 → 2021 | 26 → 25 mpg | -1 mpg | 460 gal |
What CLS450 4matic fuel costs over a year
At the EPA's 11,500 miles a year, the 2023 Mercedes-Benz CLS450 4matic burns 460 to 460 gallons depending on configuration. Below is what that costs at three pump prices, and how much more the thirstiest configuration costs than the most efficient one.
| Pump price | Most efficient | Thirstiest | Spread |
|---|---|---|---|
| $3.00/gal | $1,380 | $1,380 | $0 |
| $3.50/gal | $1,610 | $1,610 | $0 |
| $4.00/gal | $1,840 | $1,840 | $0 |
EPA’s own estimate for the 2023 model year is $3,100 to $3,100 a year in fuel, or $4,250 more than the average new vehicle over five years.
How it compares with other Compact Cars
Across the 498 nameplates EPA classifies as Compact Cars, the median best combined rating is 26 mpg. At 25 mpg the Mercedes-Benz CLS450 4matic is 1 mpg below the median, which is worth about $62 a year at $3.50 a gallon.
- All Compact Cars rankings — every nameplate in the class, best to worst.
Other Mercedes-Benz nameplates
Every Mercedes-Benz model compared → — all nameplates ranked by best combined rating, with what each one costs a year.