Mercedes C class is a more dynamic driving. BMW 3 series engine produces 123 HP less power than Mercedes C class, whereas torque is 150 NM less than Mercedes C class. Due to the lower power, BMW 3 series reaches 100 km/h speed 1.8 seconds later.
Fuel consumption
Fuel consumption (l/100km):
9.8
11.9
Real fuel consumption:
11.1 l/100km
13.5 l/100km
The BMW 3 series is a better choice when it comes to fuel economy. By specification BMW 3 series consumes 2.1 litres less fuel per 100 km than the Mercedes C class, which means that by driving the BMW 3 series over 15,000 km in a year you can save 315 litres of fuel. By comparing actual fuel consumption based on user reports, BMW 3 series consumes 2.4 litres less fuel per 100 km than the Mercedes C class.
Engine resource depends largely on regular maintenance and the quality of the oils and fuels used, but under equal conditions the average life of a BMW 3 series engine could be longer.
Engine production duration:
7 years
10 years
Engine spread:
Installed on at least 6 other car models, including BMW 5 sērija, BMW X5, BMW 7 sērija, BMW X3, BMW Z4
Used also on Mercedes SLK
In general, the longer and for more car models an engine is produced, the better its serviceability and availability of spare parts.
Dimensions
Length:
4.48 m
4.54 m
Width:
1.74 m
1.73 m
Height:
1.41 m
1.47 m
BMW 3 series is 6 cm shorter than the Mercedes C class, 1 cm wider, while the height of BMW 3 series is 6 cm lower.
Trunk capacity:
435 litres
no data
Trunk max capacity: with rear seats folded down
1345 litres
no data
Turning diameter:
10 meters
10.8 meters
The turning circle of the BMW 3 series is 0.8 metres less than that of the Mercedes C class, which means BMW 3 series can be easier to manoeuvre in tight streets and parking spaces.
Mercedes C class has slightly fewer faults. Deffect rate in annual technical inspection is similar for both cars, it's slightly higher for BMW 3 series, so Mercedes C class quality could be a bit better.
