Audi A4 engine produces 13 HP less power than Mercedes C class, whereas torque is 25 NM less than Mercedes C class.
Fuel consumption
Fuel consumption (l/100km):
7.9
8.4
Real fuel consumption:
8.5 l/100km
9.0 l/100km
The Audi A4 is a better choice when it comes to fuel economy. By specification Audi A4 consumes 0.5 litres less fuel per 100 km than the Mercedes C class, which means that by driving the Audi A4 over 15,000 km in a year you can save 75 litres of fuel. By comparing actual fuel consumption based on user reports, Audi A4 consumes 0.5 litres less fuel per 100 km than the Mercedes C class.
Fuel tank capacity:
70 litres
62 litres
Full fuel tank distance:
880 km in combined cycle
730 km in combined cycle
1180 km on highway
980 km on highway
820 km with real consumption
680 km with real consumption
Audi A4 gets more mileage on one fuel tank.
Drive type
Wheel drive type:
Front wheel drive (FWD)
Rear wheel drive (RWD)
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:
8 years
13 years
Engine spread:
Installed on at least 2 other car models, including Volkswagen Passat, Audi A6
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.
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
