BMW 3 series engine produces 6 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 0.5 seconds faster.
Fuel consumption
Fuel consumption (l/100km):
7.4
7.4
Fuel tank capacity:
60 litres
66 litres
Full fuel tank distance:
810 km in combined cycle
890 km in combined cycle
1070 km on highway
1170 km on highway
710 km with real consumption
800 km with real consumption
Mercedes C class gets more mileage on one fuel tank.
Engines
Average engine lifespan:
420'000 km
440'000 km
Engine resource depends largely on regular maintenance and the quality of the oils and fuels used.
Engine production duration:
11 years
13 years
Engine spread:
Installed on at least 4 other car models, including BMW 1 sērija, BMW X3, BMW X1, BMW Z4
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. BMW 3 series might be a better choice in this respect.
Dimensions
Length:
4.52 m
4.58 m
Width:
1.82 m
1.77 m
Height:
1.42 m
1.45 m
BMW 3 series is 6 cm shorter than the Mercedes C class, 5 cm wider, while the height of BMW 3 series is 3 cm lower.
Trunk capacity:
460 litres
475 litres
BMW 3 series has 15 litres less trunk space than the Mercedes C class.
Turning diameter:
11 meters
10.8 meters
The turning circle of the BMW 3 series is 0.2 metres more than that of the Mercedes C class.
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
