BMW 3 series engine produces 20 HP less power than Mercedes C class, whereas torque is 30 NM less than Mercedes C class. Despite less power, BMW 3 series reaches 100 km/h speed 0.1 seconds faster.
Fuel consumption
Fuel consumption (l/100km):
no data
6.7
Fuel tank capacity:
60 litres
59 litres
880 km with real consumption
790 km with real consumption
Engines
Average engine lifespan:
320'000 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.
BMW 3 series is larger, but slightly lower. BMW 3 series is 3 cm longer than the Mercedes C class, 4 cm wider the height of the cars does not differ significantly.
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`935
1`995
Safety:
BMW 3 series scores higher in safety tests, but Mercedes C class is better rated in child safety tests.