Mercedes C class is more dynamic to drive. Mercedes C class engine produces 14 HP more power than BMW 3 series, whereas torque is 40 NM more than BMW 3 series. Thanks to more power Mercedes C class reaches 100 km/h speed 1.1 seconds faster.
Fuel consumption
Fuel consumption (l/100km):
8.4
7.3
Real fuel consumption:
9.0 l/100km
8.9 l/100km
The BMW 3 series is a better choice when it comes to fuel economy. By specification Mercedes C class consumes 1.1 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 165 litres more fuel. By comparing actual fuel consumption based on user reports, Mercedes C class consumes 0.1 litres more fuel per 100 km than the BMW 3 series.
Fuel tank capacity:
62 litres
60 litres
Full fuel tank distance:
730 km in combined cycle
820 km in combined cycle
980 km on highway
1000 km on highway
680 km with real consumption
670 km with real consumption
Engines
Average engine lifespan:
440'000 km
420'000 km
Engine resource depends largely on regular maintenance and the quality of the oils and fuels used.
Engine production duration:
13 years
11 years
Engine spread:
Installed on at least 3 other car models, including Mercedes E klase, Mercedes CLK, Mercedes SLK
Installed on at least 4 other car models, including BMW 1 sērija, BMW X3, BMW X1, BMW Z4
In general, the longer and for more car models an engine is produced, the better its serviceability and availability of spare parts. BMW 3 series might be a better choice in this respect.
Dimensions
Length:
4.53 m
4.52 m
Width:
1.73 m
1.82 m
Height:
1.43 m
1.42 m
Mercedes C class is 1 cm longer than the BMW 3 series, 9 cm narrower, while the height of Mercedes C class is 1 cm higher.
Trunk capacity:
no data
460 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.
BMW 3 series has fewer problems. According to annual technical inspection data Mercedes C class has serious deffects in 30 percent more cases than BMW 3 series, so BMW 3 series quality is probably significantly better