Mercedes C class 2021 fuel consumption
Mercedes C class from 2021 to 2023 real fuel consumption according to user reports is approximately 17% higher compared to advertised fuel consumption. Since 2021 the Mercedes C class average difference between owner-reported real-world fuel consumption and declared fuel economy has been less than industry average.
Year-to-year deviations of actual owner-reported average fuel consumption from advertised values
| Year | Gasoline cars | Diesel cars | ||
|---|---|---|---|---|
| All carmakers | Mercedes C class | All carmakers | Mercedes C class | |
| 2021 | +20% | +5% | +27% | +8% |
| Show all years | ||||
| 2022 | +18% | +4% | +24% | +8% |
| 2023 | +16% | +4% | +22% | +8% |
See below for the actual consumption of generations and versions of Mercedes C class.
2021
Mercedes C class 2021 sedan fuel economy
| Average advertised fuel consumption for petrol engines | 31.4 MPG 7.5 l/100km |
| Average real-world fuel consumption for petrol engines | 28.6 MPG 8.2 l/100km |
| Average real gasoline consumption difference * | +7% |
| Average advertised fuel consumption for diesel engines | 44.4 MPG 5.3 l/100km |
| Average real-world fuel consumption for diesel engines | 42.0 MPG 5.6 l/100km |
| Average real diesel consumption difference * | +13% |
The table below shows the real and claimed fuel consumption and the differences for specific versions.
| Modification | Claimed consumption | Real consumption |
|---|---|---|
| 1.5 liter petrol engine | ||
| Mercedes C 180 EQ Boost 170 HP automatic | 36.2 MPG 6.5 l/100km |
32.2 MPG 7.3 l/100km+12% |
| Mercedes C 200 EQ Boost 204 HP automatic | 32.7 MPG 7.2 l/100km |
31.4 MPG 7.5 l/100km+4% |
| Mercedes C 200 EQ Boost 204 HP 4x4 automatic | 34.1 MPG 6.9 l/100km |
|
| 2.0 liter petrol engine | ||
| Mercedes C 300 EQ Boost 258 HP automatic | 31.8 MPG 7.4 l/100km |
|
| Mercedes C 300 EQ Boost 258 HP 4x4 automatic | 29.8 MPG 7.9 l/100km |
27.4 MPG 8.6 l/100km+9% |
| Mercedes AMG C 43 408 HP 4x4 automatic | 25.8 MPG 9.1 l/100km |
24.8 MPG 9.5 l/100km+4% |
| 2.0 liter diesel engine | ||
| Mercedes C 200 d EQ Boost 163 HP automatic | 52.3 MPG 4.5 l/100km |
44.4 MPG 5.3 l/100km+18% |
| Mercedes C 220 d EQ Boost 200 HP 4x4 automatic | 42.8 MPG 5.5 l/100km |
39.9 MPG 5.9 l/100km+7% |
| Mercedes C 220 d EQ Boost 200 HP automatic | 42.0 MPG 5.6 l/100km |
|
| Mercedes C 300 d EQ Boost 265 HP automatic | 42.0 MPG 5.6 l/100km |
|
2021
Mercedes C class 2021 wagon fuel economy
| Average advertised fuel consumption for petrol engines | 28.9 MPG 8.1 l/100km |
| Average real-world fuel consumption for petrol engines | 28.2 MPG 8.3 l/100km |
| Average real gasoline consumption difference * | insignificant |
| Average advertised fuel consumption for diesel engines | 41.0 MPG 5.7 l/100km |
| Average real-world fuel consumption for diesel engines | 39.9 MPG 5.9 l/100km |
| Average real diesel consumption difference * | +4% |
The table below shows the real and claimed fuel consumption and the differences for specific versions.
| Modification | Claimed consumption | Real consumption |
|---|---|---|
| 1.5 liter petrol engine | ||
| Mercedes C 200 EQ Boost Automatic 204 HP automatic | 31.8 MPG 7.4 l/100km |
29.8 MPG 7.9 l/100km+7% |
| Mercedes C 200 EQ Boost Automatic 4x4 204 HP automatic | 30.2 MPG 7.8 l/100km |
|
| 2.0 liter petrol engine | ||
| Mercedes C 300 EQ Boost 258 HP 4x4 automatic | 29.0 MPG 8.1 l/100km |
28.3 MPG 8.3 l/100km+2% |
| Mercedes AMG C 43 408 HP 4x4 automatic | 25.6 MPG 9.2 l/100km |
24.8 MPG 9.5 l/100km+3% |
| 2.0 liter diesel engine | ||
| Mercedes C 220 d EQ Boost Automatic 200 HP automatic | 40.6 MPG 5.8 l/100km |
39.9 MPG 5.9 l/100km+2% |
| Mercedes C 220 d EQ Boost Automatic 4x4 200 HP automatic | 42.0 MPG 5.6 l/100km |
39.9 MPG 5.9 l/100km+5% |
| Mercedes C 300 d EQ Boost 265 HP automatic | 40.6 MPG 5.8 l/100km |
|
* - Difference between advertised and user reported fuel economy has been calculated taking into account only those car versions for which information is available both on the fuel consumption specified by the manufacturer and reported by users.
User-reported fuel consumption may not accurately represent all users' experiences due to variables such as driving conditions, driving style, technical condition of the vehicle, and other circumstances. Thus, it should not be relied upon as a representative indicator.