Mercedes C class and BMW 3 series have the same engine power, but Mercedes C class torque is 30 NM more than BMW 3 series. Mercedes C class reaches 100 km/h speed 0.1 seconds later.
Fuel consumption
Fuel consumption (l/100km):
9.9
7.4
Real fuel consumption:
11.3 l/100km
10.6 l/100km
The BMW 3 series is a better choice when it comes to fuel economy. By specification Mercedes C class consumes 2.5 litres more fuel per 100 km than the BMW 3 series, which means that if you drive 15,000 km in a year, the Mercedes C class could require 375 litres more fuel. By comparing actual fuel consumption based on user reports, Mercedes C class consumes 0.7 litres more fuel per 100 km than the BMW 3 series.
Fuel tank capacity:
66 litres
63 litres
Full fuel tank distance:
660 km in combined cycle
850 km in combined cycle
900 km on highway
1080 km on highway
580 km with real consumption
590 km with real consumption
BMW 3 series gets more mileage on one fuel tank.
Engines
Average engine lifespan:
450'000 km
350'000 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:
13 years
7 years
Engine spread:
Installed on at least 9 other car models, including Mercedes E klase, Mercedes ML, Mercedes S klase
Installed on at least 2 other car models, including BMW 5 sērija, BMW 6 sērija
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:
4.60 m
4.53 m
Width:
1.77 m
1.82 m
Height:
1.46 m
1.44 m
Mercedes C class is 7 cm longer than the BMW 3 series, 5 cm narrower, while the height of Mercedes C class is 2 cm higher.
Trunk capacity:
no data
460 litres
Trunk max capacity: with rear seats folded down
no data
1385 litres
Turning diameter:
10.8 meters
11 meters
The turning circle of the Mercedes C class is 0.2 metres less than that of the BMW 3 series.
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.
