Mercedes C class is more dynamic to drive. Mercedes C class engine produces 34 HP more power than BMW 3 series, whereas torque is 70 NM more than BMW 3 series. Thanks to more power Mercedes C class reaches 100 km/h speed 2 seconds faster.
Fuel consumption
Fuel consumption (l/100km):
7.6
6.4
The BMW 3 series is a better choice when it comes to fuel economy. Mercedes C class consumes 1.2 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 180 litres more fuel.
Fuel tank capacity:
66 litres
63 litres
Full fuel tank distance:
860 km in combined cycle
980 km in combined cycle
1130 km on highway
1210 km on highway
BMW 3 series gets more mileage on one fuel tank.
Engines
Average engine lifespan:
440'000 km
330'000 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
6 years
Engine spread:
Installed on at least 3 other car models, including Mercedes E klase, Mercedes CLK, Mercedes SLK
Used also on BMW 1 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:
4.58 m
4.53 m
Width:
1.77 m
1.82 m
Height:
1.45 m
1.42 m
Mercedes C class is 5 cm longer than the BMW 3 series, 5 cm narrower, while the height of Mercedes C class is 3 cm higher.
Trunk capacity:
475 litres
460 litres
Mercedes C class has 15 litres more trunk space than the BMW 3 series.
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 slightly fewer faults. Deffect rate in annual technical inspection is similar for both cars, it's slightly higher for Mercedes C class, so BMW 3 series quality could be a bit better.
