Mercedes-Benz
C300
U.S. fuel economy and specifications from the EPA.
30Best combined MPG2024 model year
2008–2027Model years17 with EPA ratings
22Rated configurationsDrive, transmission and engine
2–3.5 LEngine sizeDisplacement
Best combined MPG by model year
The highest EPA rating among each year's configurations.
2008 21 MPG
2009 21 MPG
2010 21 MPG
2011 21 MPG
2012 No rating
2013 No rating
2014 No rating
2015 28 MPG
2016 28 MPG
2017 28 MPG
2018 27 MPG
2019 27 MPG
2020 28 MPG
2021 27 MPG
2022 29 MPG
2023 29 MPG
2024 30 MPG
2025 29 MPG
2026 29 MPG
2027 29 MPG
1 configuration.
Rear-Wheel Drive · Automatic 9-spd
Premium gasoline · Compact Cars
- Combined MPG
- 29
- Engine displacement
- 2.0 L
- Cylinders
- 4
Rear-Wheel Drive · Automatic 9-spd
Premium gasoline · Compact Cars
- Combined MPG
- 29
- Engine displacement
- 2.0 L
- Cylinders
- 4
Rear-Wheel Drive · Automatic 9-spd
Premium gasoline · Compact Cars
- Combined MPG
- 29
- Engine displacement
- 2.0 L
- Cylinders
- 4
2025 EPA test-car reference
Engine ratings from the EPA test-car reference.
| Engine rated hp | Displacement | Transmission | Drive |
|---|---|---|---|
| 255 | 2.0 L | Automatic · 9 gears | 2-Wheel Drive, Rear |
Rear-Wheel Drive · Automatic 9-spd
Premium gasoline · Compact Cars
- Combined MPG
- 30
- Engine displacement
- 2.0 L
- Cylinders
- 4
Rear-Wheel Drive · Automatic 9-spd
Premium gasoline · Compact Cars
- Combined MPG
- 29
- Engine displacement
- 2.0 L
- Cylinders
- 4
Rear-Wheel Drive · Automatic 9-spd
Premium gasoline · Compact Cars
- Combined MPG
- 29
- Engine displacement
- 2.0 L
- Cylinders
- 4
Rear-Wheel Drive · Automatic 9-spd
Premium gasoline · Compact Cars
- Combined MPG
- 27
- Engine displacement
- 2.0 L
- Cylinders
- 4
Rear-Wheel Drive · Automatic 9-spd
Premium gasoline · Compact Cars
- Combined MPG
- 28
- Engine displacement
- 2.0 L
- Cylinders
- 4
Rear-Wheel Drive · Automatic 9-spd
Premium gasoline · Compact Cars
- Combined MPG
- 27
- Engine displacement
- 2.0 L
- Cylinders
- 4
Rear-Wheel Drive · Automatic 9-spd
Premium gasoline · Compact Cars
- Combined MPG
- 27
- Engine displacement
- 2.0 L
- Cylinders
- 4
Rear-Wheel Drive · Automatic 7-spd
Premium gasoline · Compact Cars
- Combined MPG
- 28
- Engine displacement
- 2.0 L
- Cylinders
- 4
Rear-Wheel Drive · Automatic 7-spd
Premium gasoline · Compact Cars
- Combined MPG
- 28
- Engine displacement
- 2.0 L
- Cylinders
- 4
Rear-Wheel Drive · Automatic 7-spd
Premium gasoline · Compact Cars
- Combined MPG
- 28
- Engine displacement
- 2.0 L
- Cylinders
- 4
Rear-Wheel Drive · Automatic 7-spd
Premium gasoline · Compact Cars
- Combined MPG
- 21
- Engine displacement
- 3.0 L
- Cylinders
- 6
Rear-Wheel Drive · Automatic 7-spd
Premium gasoline or E85 · Compact Cars
- Combined MPG on premium gasoline
- 20
- Combined MPG on E85
- 15
- Engine displacement
- 3.0 L
- Cylinders
- 6
Rear-Wheel Drive · Manual 6-spd
Premium gasoline · Compact Cars
- Combined MPG
- 21
- Engine displacement
- 3.0 L
- Cylinders
- 6
Rear-Wheel Drive · Manual 6-spd
Premium gasoline · Compact Cars
- Combined MPG
- 21
- Engine displacement
- 3.0 L
- Cylinders
- 6
Rear-Wheel Drive · Automatic 7-spd
Premium gasoline or E85 · Compact Cars
- Combined MPG on premium gasoline
- 21
- Combined MPG on E85
- 15
- Engine displacement
- 3.0 L
- Cylinders
- 6
Rear-Wheel Drive · Automatic 7-spd
Premium gasoline · Compact Cars
- Combined MPG
- 21
- Engine displacement
- 3.5 L
- Cylinders
- 6
Rear-Wheel Drive · Automatic 7-spd
Premium gasoline or E85 · Compact Cars
- Combined MPG on premium gasoline
- 21
- Combined MPG on E85
- 15
- Engine displacement
- 3.0 L
- Cylinders
- 6
Rear-Wheel Drive · Manual 6-spd
Premium gasoline · Compact Cars
- Combined MPG
- 21
- Engine displacement
- 3.0 L
- Cylinders
- 6
Rear-Wheel Drive · Automatic 7-spd
Premium gasoline or E85 · Compact Cars
- Combined MPG on premium gasoline
- 21
- Combined MPG on E85
- 15
- Engine displacement
- 3.0 L
- Cylinders
- 6