Mercedes C class engine produces 13 HP more power than Audi A4, whereas torque is 25 NM more than Audi A4.
Fuel consumption
Fuel consumption (l/100km):
8.4
7.9
Real fuel consumption:
9.0 l/100km
8.5 l/100km
The Audi A4 is a better choice when it comes to fuel economy. By specification Mercedes C class consumes 0.5 litres more fuel per 100 km than the Audi A4, which means that if you drive 15,000 km in a year, the Mercedes C class could require 75 litres more fuel. By comparing actual fuel consumption based on user reports, Mercedes C class consumes 0.5 litres more fuel per 100 km than the Audi A4.
Engine resource depends largely on regular maintenance and the quality of the oils and fuels used.
Engine production duration:
13 years
8 years
Engine spread:
Installed on at least 3 other car models, including Mercedes E klase, Mercedes CLK, Mercedes SLK
Installed on at least 2 other car models, including Volkswagen Passat, Audi A6
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 is smaller. Mercedes C class is 2 cm shorter than the Audi A4, 4 cm narrower the height of the cars does not differ significantly.
Trunk capacity:
455 litres
445 litres
Even though the car is shorter, Mercedes C class has 10 litres more trunk space than the Audi A4. The Audi A4 may have more interior space, so the cabin could be more spacious and more comfortable for the driver and passengers.
Turning diameter:
10.8 meters
11.1 meters
The turning circle of the Mercedes C class is 0.3 metres less than that of the Audi A4.
Audi A4 has fewer problems. According to annual technical inspection data Mercedes C class has serious deffects in 20 percent more cases than Audi A4, so Audi A4 quality is probably better