Engine chain usually needs to be replaced less often than the timing belt, but the cost of replacing the chain is usually higher. Chain motors are considered to be more reliable, but noisier and more vibration generating.
Performance
Power:
136 HP
115 HP
Torque:
210 NM
265 NM
Acceleration 0-100 km/h:
12.9 seconds
11.2 seconds
Audi A6 is a more dynamic driving. Mercedes E class engine produces 21 HP more power than Audi A6, but torque is 55 NM less than Audi A6. Despite the higher power, Mercedes E class reaches 100 km/h speed 1.7 seconds later.
Fuel consumption
Fuel consumption (l/100km):
7.4
6.9
Real fuel consumption:
7.6 l/100km
6.7 l/100km
The Audi A6 is a better choice in terms of fuel economy based on user-reported consumption, although the specification shows otherwise. By specification Mercedes E class consumes 0.5 litres more fuel per 100 km than the Audi A6, which means that if you drive 15,000 km in a year, the Mercedes E class could require 75 litres more fuel. By comparing actual fuel consumption based on user reports, Mercedes E class consumes 0.9 litres more fuel per 100 km than the Audi A6.
Fuel tank capacity:
65 litres
80 litres
Full fuel tank distance:
870 km in combined cycle
1150 km in combined cycle
1220 km on highway
1450 km on highway
850 km with real consumption
1190 km with real consumption
Audi A6 gets more mileage on one fuel tank.
Drive type
Wheel drive type:
Rear wheel drive (RWD)
Front wheel drive (FWD)
Engines
Average engine lifespan:
700'000 km
770'000 km
Engine resource depends largely on regular maintenance and the quality of the oils and fuels used, but under equal conditions the average life of a Audi A6 engine could be longer.
Engine production duration:
8 years
6 years
Engine spread:
Used only for this car
Used also on Audi 100
In general, the longer and for more car models an engine is produced, the better its serviceability and availability of spare parts. Audi A6 might be a better choice in this respect.
Dimensions
Length:
4.80 m
4.80 m
Width:
1.80 m
1.78 m
Height:
1.42 m
1.43 m
Both cars are similar in size. Mercedes E class and Audi A6 are practically the same length.
Trunk capacity:
520 litres
510 litres
Mercedes E class has 10 litres more trunk space than the Audi A6.
Turning diameter:
11.3 meters
11.4 meters
The turning circle of the Mercedes E class is 0.1 metres less than that of the Audi A6.
Mercedes E class has fewer problems. According to annual technical inspection data Audi A6 has serious deffects in 10 percent more cases than Mercedes E class, so Mercedes E class quality is probably slightly better
