Mercedes C class 2018 fuel consumption
Mercedes C class from 2018 to 2021 real fuel consumption according to user reports is approximately 17% higher compared to advertised fuel consumption. Since 2018 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 | |
| 2018 | +27% | +20% | +36% | +19% |
| Show all years | ||||
| 2019 | +25% | +19% | +33% | +19% |
| 2020 | +22% | +19% | +31% | +19% |
| 2021 | +20% | +19% | +27% | +19% |
See below for the actual consumption of generations and versions of Mercedes C class.
2018 - 2021
Mercedes C class 2018 sedan fuel economy
| Average advertised fuel consumption for petrol engines | 30.9 MPG 7.6 l/100km |
| Average real-world fuel consumption for petrol engines | 25.6 MPG 9.2 l/100km |
| Average real gasoline consumption difference * | +20% |
| Average advertised fuel consumption for diesel engines | 46.4 MPG 5.1 l/100km |
| Average real-world fuel consumption for diesel engines | 39.4 MPG 6.0 l/100km |
| Average real diesel consumption difference * | +20% |
Mercedes C class 2018 automatic vs manual fuel consumption
According to advertised fuel consumption, a Mercedes C class 2018 with automatic transmission consumes on average 0.3 liters per 100 km or 5% more fuel than similar versions with manual gearbox.
According to data reported by users regarding real fuel consumption, this generation Mercedes C class with automatic transmission consumes around 0.9 litres per 100 km or 13% more fuel than a version with the same engine but a manual gearbox.
Of all modifications the best advertised fuel economy in its class has Mercedes C class with 4.0 petrol engine and automatic transmission (Mercedes AMG C 63 V8 476 HP).
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 200 184 HP 4x4 automatic | 34.1 MPG 6.9 l/100km |
|
| Mercedes C 200 184 HP automatic | 37.3 MPG 6.3 l/100km |
30.9 MPG 7.6 l/100km+21% |
| 1.6 liter petrol engine | ||
| Mercedes C 160 129 HP automatic | 35.6 MPG 6.6 l/100km |
|
| Mercedes C 180 156 HP automatic | 36.2 MPG 6.5 l/100km |
29.0 MPG 8.1 l/100km+25% |
| Mercedes C 180 156 HP manual | 37.9 MPG 6.2 l/100km |
32.7 MPG 7.2 l/100km+16% |
| 1.6 liter diesel engine | ||
| Mercedes C 180d 122 HP manual | 52.3 MPG 4.5 l/100km |
44.4 MPG 5.3 l/100km+18% |
| Mercedes C 200d 160 HP manual | 52.3 MPG 4.5 l/100km |
42.0 MPG 5.6 l/100km+24% |
| 2.0 liter petrol engine | ||
| Mercedes C 300 258 HP automatic | 34.1 MPG 6.9 l/100km |
|
| Mercedes C 300 258 HP 4x4 automatic | 33.6 MPG 7.0 l/100km |
28.7 MPG 8.2 l/100km+17% |
| 2.0 liter diesel engine | ||
| Mercedes C 220d 194 HP 4x4 automatic | 42.8 MPG 5.5 l/100km |
36.2 MPG 6.5 l/100km+18% |
| Mercedes C 220d 194 HP automatic | 49.0 MPG 4.8 l/100km |
|
| Mercedes C 300d 245 HP automatic | 43.6 MPG 5.4 l/100km |
36.2 MPG 6.5 l/100km+20% |
| Mercedes C 300d 245 HP 4x4 automatic | 41.3 MPG 5.7 l/100km |
|
| 3.0 liter petrol engine | ||
| Mercedes C 400 V6 333 HP 4x4 automatic | 28.7 MPG 8.2 l/100km |
24.2 MPG 9.7 l/100km+18% |
| Mercedes AMG C 43 V6 390 HP 4x4 automatic | 25.3 MPG 9.3 l/100km |
21.2 MPG 11.1 l/100km+19% |
| 4.0 liter petrol engine | ||
| Mercedes AMG C 63 V8 476 HP automatic | 23.8 MPG 9.9 l/100km |
19.0 MPG 12.4 l/100km+25% |
| Mercedes AMG C 63 S V8 510 HP automatic | 23.8 MPG 9.9 l/100km |
|
2018 - 2021
Mercedes C class 2018 wagon fuel economy
| Average advertised fuel consumption for petrol engines | 29.3 MPG 8.0 l/100km |
| Average real-world fuel consumption for petrol engines | 23.7 MPG 9.9 l/100km |
| Average real gasoline consumption difference * | +19% |
| Average advertised fuel consumption for diesel engines | 45.9 MPG 5.1 l/100km |
| Average real-world fuel consumption for diesel engines | 39.2 MPG 6.0 l/100km |
| Average real diesel consumption difference * | +18% |
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 Automatic 184 HP automatic | 35.6 MPG 6.6 l/100km |
|
| Mercedes C 200 Automatic 4x4 184 HP automatic | 33.1 MPG 7.1 l/100km |
28.3 MPG 8.3 l/100km+17% |
| 1.6 liter petrol engine | ||
| Mercedes C 160 129 HP automatic | 34.6 MPG 6.8 l/100km |
|
| Mercedes C 180 156 HP automatic | 34.6 MPG 6.8 l/100km |
29.0 MPG 8.1 l/100km+19% |
| 1.6 liter diesel engine | ||
| Mercedes C 180d 122 HP manual | 51.1 MPG 4.6 l/100km |
44.4 MPG 5.3 l/100km+15% |
| Mercedes C 200d 160 Hp 160 HP manual | 51.1 MPG 4.6 l/100km |
42.0 MPG 5.6 l/100km+22% |
| 2.0 liter petrol engine | ||
| Mercedes C 300 258 HP automatic | 33.6 MPG 7.0 l/100km |
|
| 2.0 liter diesel engine | ||
| Mercedes C 200d 150 Hp 150 HP automatic | 47.0 MPG 5.0 l/100km |
40.6 MPG 5.8 l/100km+16% |
| Mercedes C 220d Automatic 194 HP automatic | 47.0 MPG 5.0 l/100km |
39.9 MPG 5.9 l/100km+18% |
| Mercedes C 220d Automatic 4x4 194 HP automatic | 44.4 MPG 5.3 l/100km |
|
| Mercedes C 300d Automatic 245 HP automatic | 42.0 MPG 5.6 l/100km |
35.6 MPG 6.6 l/100km+18% |
| Mercedes C 300d Automatic 4x4 245 HP automatic | 40.6 MPG 5.8 l/100km |
34.6 MPG 6.8 l/100km+17% |
| 3.0 liter petrol engine | ||
| Mercedes C 400 V6 333 HP 4x4 automatic | 28.3 MPG 8.3 l/100km |
24.2 MPG 9.7 l/100km+17% |
| Mercedes AMG C 43 V6 390 HP 4x4 automatic | 24.5 MPG 9.6 l/100km |
21.2 MPG 11.1 l/100km+16% |
| 4.0 liter petrol engine | ||
| Mercedes AMG C 63 V8 476 HP automatic | 23.5 MPG 10.0 l/100km |
19.0 MPG 12.4 l/100km+24% |
| Mercedes AMG C 63 S V8 510 HP automatic | 23.5 MPG 10.0 l/100km |
|
2018 - 2021
Mercedes C class 2018 coupe fuel economy
| Average advertised fuel consumption for petrol engines | 30.1 MPG 7.8 l/100km |
| Average real-world fuel consumption for petrol engines | 24.5 MPG 9.6 l/100km |
| Average real gasoline consumption difference * | +19% |
| Average advertised fuel consumption for diesel engines | 45.2 MPG 5.2 l/100km |
| Average real-world fuel consumption for diesel engines | 38.6 MPG 6.1 l/100km |
| Average real diesel consumption difference * | +20% |
Mercedes C class 2018 automatic vs manual fuel consumption
According to advertised fuel consumption, a Mercedes C class 2018 with automatic transmission consumes on average 0.4 liters per 100 km or 6% more fuel than similar versions with manual gearbox.
Of all modifications the best advertised fuel economy in its class has Mercedes C class with 4.0 petrol engine and automatic transmission (Mercedes AMG C 63 V8 476 HP).
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 200 184 HP 4x4 automatic | 33.6 MPG 7.0 l/100km |
29.4 MPG 8.0 l/100km+14% |
| Mercedes C 200 198 HP automatic | 36.2 MPG 6.5 l/100km |
|
| 1.6 liter petrol engine | ||
| Mercedes C 180 156 HP manual | 37.3 MPG 6.3 l/100km |
|
| Mercedes C 180 156 HP automatic | 35.1 MPG 6.7 l/100km |
29.0 MPG 8.1 l/100km+21% |
| 1.6 liter diesel engine | ||
| Mercedes C 200d 160 HP manual | 50.0 MPG 4.7 l/100km |
42.0 MPG 5.6 l/100km+19% |
| 2.0 liter petrol engine | ||
| Mercedes C 300 258 HP automatic | 34.1 MPG 6.9 l/100km |
|
| Mercedes C 300 258 HP 4x4 automatic | 33.6 MPG 7.0 l/100km |
28.3 MPG 8.3 l/100km+19% |
| 2.0 liter diesel engine | ||
| Mercedes C 220d 194 HP automatic | 48.0 MPG 4.9 l/100km |
40.6 MPG 5.8 l/100km+18% |
| Mercedes C 220d 194 HP 4x4 automatic | 44.4 MPG 5.3 l/100km |
|
| Mercedes C 300d 245 HP automatic | 43.6 MPG 5.4 l/100km |
|
| Mercedes C 300d 245 HP 4x4 automatic | 41.3 MPG 5.7 l/100km |
34.1 MPG 6.9 l/100km+21% |
| 3.0 liter petrol engine | ||
| Mercedes C 400 V6 333 HP 4x4 automatic | 29.0 MPG 8.1 l/100km |
24.2 MPG 9.7 l/100km+20% |
| Mercedes AMG C 43 V6 390 HP 4x4 automatic | 24.8 MPG 9.5 l/100km |
21.2 MPG 11.1 l/100km+17% |
| 4.0 liter petrol engine | ||
| Mercedes AMG C 63 V8 476 HP automatic | 23.3 MPG 10.1 l/100km |
19.0 MPG 12.4 l/100km+23% |
| Mercedes AMG C 63 S V8 510 HP automatic | 23.3 MPG 10.1 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.