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Mercedes B class 2014 fuel consumption

Mercedes B class from 2014 to 2018 real fuel consumption according to user reports is approximately 27% higher compared to advertised fuel consumption. Since 2014 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
2014+26%+38% +30%+46%
Show all years
2015+27%+38% +33%+46%
2016+28%+38% +36%+46%
2017+28%+38% +38%+46%
2018+28%+38% +39%+46%

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

2014 - 2018

Mercedes B class 2014 W246 fuel economy

Average advertised fuel consumption for petrol engines40.4 MPG
5.8 l/100km
Average real-world fuel consumption for petrol engines29.2 MPG
8.0 l/100km
Average real gasoline consumption difference *+38%
Average advertised fuel consumption for diesel engines55.7 MPG
4.2 l/100km
Average real-world fuel consumption for diesel engines40.4 MPG
5.8 l/100km
Average real diesel consumption difference *+46%

According to advertised fuel consumption, a Mercedes B class 2014 with automatic transmission consumes on average 0.2 liters per 100 km or 5% less 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 0.5 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 real fuel economy in its class according to user reviews of all the modifications has modification with 2.1 diesel engine and manual transmission (Mercedes B 200 2014 CDI 136 HP). However, of all modifications the best advertised fuel economy in its class has Mercedes B class with 1.6 petrol engine and automatic transmission (Mercedes B 180 2014 122 HP).

ModificationClaimed consumptionReal consumption
1.5 liter diesel engine
Mercedes B 160 2014 CDI 90 HP manual 57.4 MPG
4.1 l/100km
44.4 MPG
5.3 l/100km+29%
Mercedes B 160 2014 CDI Automatic 90 HP automatic 63.6 MPG
3.7 l/100km
39.9 MPG
5.9 l/100km+59%
Mercedes B 180 2014 CDI 109 HP manual 57.4 MPG
4.1 l/100km
45.2 MPG
5.2 l/100km+27%
Mercedes B 180 2014 CDI Automatic 109 HP automatic 63.6 MPG
3.7 l/100km
41.3 MPG
5.7 l/100km+54%
1.6 liter petrol engine
Mercedes B 180 2014 122 HP automatic 43.6 MPG
5.4 l/100km
30.2 MPG
7.8 l/100km+44%
Mercedes B 180 2014 BlueEFFICIENCY 122 HP manual 45.2 MPG
5.2 l/100km
32.7 MPG
7.2 l/100km+38%
Mercedes B 200 2014 156 HP manual 42.0 MPG
5.6 l/100km
31.4 MPG
7.5 l/100km+34%
Mercedes B 200 2014 Automatic 156 HP automatic 43.6 MPG
5.4 l/100km
29.0 MPG
8.1 l/100km+50%
2.0 liter petrol engine
Mercedes B 220 2014 4MATIC 184 HP 4x4 automatic 36.2 MPG
6.5 l/100km
28.7 MPG
8.2 l/100km+26%
Mercedes B 250 2014 211 HP automatic 38.6 MPG
6.1 l/100km
28.0 MPG
8.4 l/100km+38%
Mercedes B 250 2014 4MATIC 211 HP 4x4 automatic 35.6 MPG
6.6 l/100km
25.8 MPG
9.1 l/100km+38%
2.1 liter diesel engine
Mercedes B 200 2014 CDI 136 HP manual 54.7 MPG
4.3 l/100km
39.2 MPG
6.0 l/100km+40%
Mercedes B 200 2014 CDI Automatic 136 HP automatic 58.8 MPG
4.0 l/100km
37.9 MPG
6.2 l/100km+55%
Mercedes B 200 CDI 136 HP 4x4 automatic 47.0 MPG
5.0 l/100km
Mercedes B 220 2014 CDI 177 HP automatic 57.4 MPG
4.1 l/100km
36.2 MPG
6.5 l/100km+59%
Mercedes B 220 CDI 177 HP 4x4 automatic 47.0 MPG
5.0 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.