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Mercedes C class 2004 fuel consumption

Mercedes C class from 2004 to 2007 real fuel consumption according to user reports is approximately 20% higher compared to advertised fuel consumption. Since 2004 the Mercedes C class average difference between owner-reported real-world fuel consumption and declared fuel economy has been similar to average.

Year-to-year deviations of actual owner-reported average fuel consumption from advertised values

YearGasoline carsDiesel cars
All carmakersMercedes C classAll carmakersMercedes C class
2004+7%+6% +9%+8%
Show all years
2005+8%+6% +10%+9%
2006+9%+7% +11%+12%
2007+11%+7% +12%+12%

See below for the actual consumption of generations and versions of Mercedes C class.

2004 - 2007

Mercedes C class 2004 sedan fuel economy

Average advertised fuel consumption for petrol engines24.3 MPG
9.7 l/100km
Average real-world fuel consumption for petrol engines23.2 MPG
10.1 l/100km
Average real gasoline consumption difference *+6%
Average advertised fuel consumption for diesel engines34.7 MPG
6.8 l/100km
Average real-world fuel consumption for diesel engines32.0 MPG
7.4 l/100km
Average real diesel consumption difference *+9%

According to advertised fuel consumption, a Mercedes C class 2004 with automatic transmission consumes on average 0.1 liters per 100 km or 2% more fuel than similar versions with manual gearbox. Based on user-reported real-world fuel consumption, this generation Mercedes C class with automatic transmission consumes around 0.6 litres per 100 km or 8% more fuel than a version with the same engine but a manual gearbox.

Compared to similar cars from other manufacturers, the Mercedes C class fuel economy is slightly better than average. The best real fuel economy in its class according to user reviews of all the modifications has modification with 3.0 petrol engine and manual transmission (Mercedes C 280 2005 231 HP). However, of all modifications the best advertised fuel economy in its class has Mercedes C class with 3.5 petrol engine and manual transmission (Mercedes C 350 2005 272 HP).

ModificationClaimed consumptionReal consumption
1.8 liter petrol engine
Mercedes C 180 2004 Kompressor 143 HP manual 29.8 MPG
7.9 l/100km
27.7 MPG
8.5 l/100km+8%
Mercedes C 180 2004 Kompressor 143 HP automatic 28.0 MPG
8.4 l/100km
26.1 MPG
9.0 l/100km+7%
Mercedes C 200 2004 Kompressor 163 HP manual 27.4 MPG
8.6 l/100km
27.0 MPG
8.7 l/100km+1%
Mercedes C 200 2004 Kompressor 163 HP automatic 26.7 MPG
8.8 l/100km
24.8 MPG
9.5 l/100km+8%
Mercedes C 230 2004 Kompressor 192 HP manual 26.4 MPG
8.9 l/100km
24.5 MPG
9.6 l/100km+8%
Mercedes C 230 2004 Kompressor 192 HP automatic 26.4 MPG
8.9 l/100km
24.5 MPG
9.6 l/100km+8%
2.1 liter diesel engine
Mercedes C 200 2004 CDI 122 HP manual 38.6 MPG
6.1 l/100km
36.8 MPG
6.4 l/100km+5%
Mercedes C 200 2004 CDI 122 HP automatic 35.6 MPG
6.6 l/100km
32.7 MPG
7.2 l/100km+9%
Mercedes C 220 2004 CDI 150 HP manual 38.6 MPG
6.1 l/100km
34.1 MPG
6.9 l/100km+13%
Mercedes C 220 2004 CDI 150 HP automatic 36.2 MPG
6.5 l/100km
31.8 MPG
7.4 l/100km+14%
2.5 liter petrol engine
Mercedes C 230 2005 204 HP manual 25.3 MPG
9.3 l/100km
24.8 MPG
9.5 l/100km+2%
Mercedes C 230 2005 204 HP automatic 25.3 MPG
9.3 l/100km
24.8 MPG
9.5 l/100km+2%
2.6 liter petrol engine
Mercedes C 240 2004 170 HP manual 22.0 MPG
10.7 l/100km
Mercedes C 240 2004 170 HP automatic 23.1 MPG
10.2 l/100km
21.8 MPG
10.8 l/100km+6%
Mercedes C 240 2004 4Matic 170 HP 4x4 automatic 22.2 MPG
10.6 l/100km
21.8 MPG
10.8 l/100km+2%
2.7 liter diesel engine
Mercedes C 270 2004 CDI 170 HP manual 34.6 MPG
6.8 l/100km
32.2 MPG
7.3 l/100km+7%
Mercedes C 270 2004 CDI 170 HP automatic 33.1 MPG
7.1 l/100km
29.8 MPG
7.9 l/100km+11%
3.0 liter petrol engine
Mercedes C 280 2005 231 HP manual 25.0 MPG
9.4 l/100km
25.0 MPG
9.4 l/100km0%
Mercedes C 280 2005 231 HP automatic 25.0 MPG
9.4 l/100km
22.6 MPG
10.4 l/100km+11%
Mercedes C 280 2005 4Matic 231 HP 4x4 automatic 24.0 MPG
9.8 l/100km
22.6 MPG
10.4 l/100km+6%
3.0 liter diesel engine
Mercedes C 320 2005 CDI 224 HP manual 34.1 MPG
6.9 l/100km
Mercedes C 320 2005 CDI 224 HP automatic 32.2 MPG
7.3 l/100km
28.7 MPG
8.2 l/100km+12%
Mercedes C 30 2004 CDI AMG 231 HP automatic 30.9 MPG
7.6 l/100km
28.7 MPG
8.2 l/100km+8%
3.2 liter petrol engine
Mercedes C 320 2004 218 HP manual 21.6 MPG
10.9 l/100km
Mercedes C 320 2004 218 HP automatic 23.1 MPG
10.2 l/100km
22.6 MPG
10.4 l/100km+2%
Mercedes C 320 2004 4Matic 218 HP 4x4 automatic 22.0 MPG
10.7 l/100km
20.6 MPG
11.4 l/100km+7%
3.5 liter petrol engine
Mercedes C 350 2005 272 HP manual 24.8 MPG
9.5 l/100km
Mercedes C 350 2005 272 HP automatic 24.2 MPG
9.7 l/100km
21.8 MPG
10.8 l/100km+11%
Mercedes C 350 2005 4Matic 272 HP 4x4 automatic 22.8 MPG
10.3 l/100km
20.5 MPG
11.5 l/100km+12%
5.4 liter petrol engine
Mercedes C 55 2004 AMG 367 HP automatic 19.8 MPG
11.9 l/100km
17.3 MPG
13.6 l/100km+14%

* - 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.