BMW 3 series is more dynamic to drive. BMW 3 series engine produces 21 HP more power than Mercedes C class, whereas torque is 10 NM more than Mercedes C class. Thanks to more power BMW 3 series reaches 100 km/h speed 1 seconds faster.
Fuel consumption
Fuel consumption (l/100km):
6.9
7.7
Real fuel consumption:
7.6 l/100km
8.5 l/100km
The BMW 3 series is a better choice when it comes to fuel economy. By specification BMW 3 series consumes 0.8 litres less fuel per 100 km than the Mercedes C class, which means that by driving the BMW 3 series over 15,000 km in a year you can save 120 litres of fuel. By comparing actual fuel consumption based on user reports, BMW 3 series consumes 0.9 litres less fuel per 100 km than the Mercedes C class.
Fuel tank capacity:
61 litres
66 litres
Full fuel tank distance:
880 km in combined cycle
850 km in combined cycle
1050 km on highway
1040 km on highway
800 km with real consumption
770 km with real consumption
Drive type
Wheel drive type:
4x4 - AWD (all-wheel-drive)
All wheel drive (AWD, 4x4)
Engines
Engine production duration:
17 years
20 years
Engine spread:
Installed on at least 4 other car models, including BMW 5 sērija, BMW X5, BMW 7 sērija, BMW X6
Installed on at least 9 other car models, including Mercedes E klase, Mercedes ML, Mercedes G klase
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.
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.
