Mercedes C class engine produces 20 HP more power than BMW 3 series, whereas torque is 30 NM more than BMW 3 series.
Fuel consumption
Fuel consumption (l/100km):
9.9
7.4
The BMW 3 series is a better choice when it comes to fuel economy. Mercedes C class consumes 2.5 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 375 litres more fuel.
Fuel tank capacity:
62 litres
63 litres
Full fuel tank distance:
620 km in combined cycle
850 km in combined cycle
830 km on highway
1100 km on highway
BMW 3 series gets more mileage on one fuel tank.
Dimensions
Length:
4.54 m
4.48 m
Width:
1.73 m
1.74 m
Height:
1.46 m
1.41 m
Mercedes C class is 6 cm longer than the BMW 3 series, 1 cm narrower, while the height of Mercedes C class is 5 cm higher.
Trunk capacity:
no data
435 litres
Trunk max capacity: with rear seats folded down
no data
1345 litres
Turning diameter:
10.8 meters
10 meters
The turning circle of the Mercedes C class is 0.8 metres more than that of the BMW 3 series, which means Mercedes C class can be harder to manoeuvre in tight streets and parking spaces.
Mercedes C class has fewer problems. According to annual technical inspection data BMW 3 series has serious deffects in 10 percent more cases than Mercedes C class, so Mercedes C class quality is probably slightly better
