Audi A6 engine produces 7 HP more power than Mercedes C class, but torque is 10 NM less than Mercedes C class.
Fuel consumption
Fuel consumption (l/100km):
8.5
8.4
Real fuel consumption:
9.1 l/100km
8.7 l/100km
By specification Audi A6 consumes 0.1 litres more fuel per 100 km than the Mercedes C class, which means that if you drive 15,000 km in a year, the Audi A6 could require 15 litres more fuel. By comparing actual fuel consumption based on user reports, Audi A6 consumes 0.4 litres more fuel per 100 km than the Mercedes C class.
Fuel tank capacity:
70 litres
62 litres
Full fuel tank distance:
820 km in combined cycle
730 km in combined cycle
1040 km on highway
980 km on highway
760 km with real consumption
710 km with real consumption
Audi A6 gets more mileage on one fuel tank.
Drive type
Wheel drive type:
Front wheel drive (FWD)
Rear wheel drive (RWD)
Engines
Average engine lifespan:
460'000 km
440'000 km
Engine resource depends largely on regular maintenance and the quality of the oils and fuels used.
Engine production duration:
4 years
13 years
Engine spread:
Used also on Audi A4
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.
Dimensions
Length:
4.80 m
4.53 m
Width:
1.81 m
1.73 m
Height:
1.45 m
1.43 m
Audi A6 is larger. Audi A6 is 27 cm longer than the Mercedes C class, 8 cm wider, while the height of Audi A6 is 2 cm higher.
Trunk capacity:
551 litres
no data
Turning diameter:
11.7 meters
10.8 meters
The turning circle of the Audi A6 is 0.9 metres more than that of the Mercedes C class, which means Audi A6 can be harder to manoeuvre in tight streets and parking spaces.
Mercedes C class has fewer problems. According to annual technical inspection data Audi A6 has serious deffects in 10 percent more cases than Mercedes C class, so Mercedes C class quality is probably slightly better
