BMW 3 series is more dynamic to drive. BMW 3 series engine produces 14 HP more power than Mercedes C class, the torque is the same for both cars. Thanks to more power BMW 3 series reaches 100 km/h speed 1.4 seconds faster.
Fuel consumption
Fuel consumption (l/100km):
5.3
6.7
Real fuel consumption:
7.6 l/100km
7.4 l/100km
By specification BMW 3 series consumes 1.4 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 210 litres of fuel. But when we compare the real fuel consumption reported by users, BMW 3 series consumes 0.2 litres more fuel per 100 km than the Mercedes C class.
Fuel tank capacity:
60 litres
59 litres
Full fuel tank distance:
1130 km in combined cycle
880 km in combined cycle
1360 km on highway
1130 km on highway
780 km with real consumption
790 km with real consumption
Engines
Average engine lifespan:
300'000 km
440'000 km
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 Mercedes C class engine could be longer.
Engine production duration:
5 years
13 years
Engine spread:
Used also on BMW 1 sērija
Installed on at least 3 other car models, including Mercedes E klase, Mercedes CLK, Mercedes SLK
In general, the longer and for more car models an engine is produced, the better its serviceability and availability of spare parts. Mercedes C class might be a better choice in this respect.
Dimensions
Length:
4.62 m
4.59 m
Width:
1.81 m
1.77 m
Height:
1.42 m
1.43 m
BMW 3 series is larger, but slightly lower. BMW 3 series is 3 cm longer than the Mercedes C class, 4 cm wider, while the height of BMW 3 series is 2 cm lower.
Trunk capacity:
480 litres
475 litres
BMW 3 series has 5 litres more trunk space than the Mercedes C class.
Turning diameter:
11.3 meters
10.8 meters
The turning circle of the BMW 3 series is 0.5 metres more than that of the Mercedes C class, which means BMW 3 series can be harder to manoeuvre in tight streets and parking spaces.
Gross weight (kg):
1`940
1`995
Safety:
BMW 3 series scores higher in safety tests, but Mercedes C class is better rated in child safety tests.
