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Mercedes B class 2005 fuel consumption

Mercedes B class from 2005 to 2008 real fuel consumption according to user reports is approximately 27% higher compared to advertised fuel consumption. Since 2005 the Mercedes B class average difference between owner-reported real-world fuel consumption and declared fuel economy has been significantly higher than average.

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

YearGasoline carsDiesel cars
All carmakersMercedes B classAll carmakersMercedes B class
2005+8%+20% +10%+12%
Show all years
2006+9%+20% +11%+12%
2007+11%+20% +12%+12%
2008+12%+20% +13%+12%

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

2005 - 2008

Mercedes B class 2005 W245 fuel economy

Average advertised fuel consumption for petrol engines32.6 MPG
7.2 l/100km
Average real-world fuel consumption for petrol engines27.2 MPG
8.7 l/100km
Average real gasoline consumption difference *+20%
Average advertised fuel consumption for diesel engines40.7 MPG
5.8 l/100km
Average real-world fuel consumption for diesel engines36.3 MPG
6.5 l/100km
Average real diesel consumption difference *+12%

According to advertised fuel consumption, a Mercedes B class 2005 with automatic transmission consumes on average 0.3 liters per 100 km or 4% more fuel than similar versions with manual gearbox. Based on user-reported real-world fuel consumption, this generation Mercedes B 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 of other manufacturers, the Mercedes B class advertised fuel economy is significantly above average, but according to available user reports on actual consumption, real fuel economy is slightly worse than average.
The best fuel economy in its class of all the modifications has one with 2.0 petrol engine and manual transmission (Mercedes B 200 2005 136 HP).

ModificationClaimed consumptionReal consumption
1.5 liter petrol engine
Mercedes B 150 2005 95 HP manual 35.6 MPG
6.6 l/100km
29.8 MPG
7.9 l/100km+20%
Mercedes B 150 2005 Automatic 95 HP automatic 34.6 MPG
6.8 l/100km
30.2 MPG
7.8 l/100km+15%
1.7 liter petrol engine
Mercedes B 170 2005 115 HP manual 34.6 MPG
6.8 l/100km
29.8 MPG
7.9 l/100km+16%
Mercedes B 170 2005 Automatic 115 HP automatic 33.1 MPG
7.1 l/100km
27.4 MPG
8.6 l/100km+21%
2.0 liter petrol engine
Mercedes B 200 2005 136 HP manual 32.7 MPG
7.2 l/100km
29.4 MPG
8.0 l/100km+11%
Mercedes B 200 2005 Automatic 136 HP automatic 32.2 MPG
7.3 l/100km
26.1 MPG
9.0 l/100km+23%
Mercedes B 200 2005 Turbo 193 HP manual 29.8 MPG
7.9 l/100km
24.2 MPG
9.7 l/100km+23%
Mercedes B 200 2005 Turbo Automatic 193 HP automatic 29.0 MPG
8.1 l/100km
22.6 MPG
10.4 l/100km+28%
2.0 liter diesel engine
Mercedes B 180 2005 CDI 109 HP manual 42.0 MPG
5.6 l/100km
39.2 MPG
6.0 l/100km+7%
Mercedes B 180 2005 CDI Automatic 109 HP automatic 39.9 MPG
5.9 l/100km
35.1 MPG
6.7 l/100km+14%
Mercedes B 200 2005 CDI 140 HP manual 42.0 MPG
5.6 l/100km
37.3 MPG
6.3 l/100km+13%
Mercedes B 200 2005 CDI Automatic 140 HP automatic 39.2 MPG
6.0 l/100km
34.1 MPG
6.9 l/100km+15%

* - 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.