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:
170 HP
140 HP
Torque:
400 NM
320 NM
Acceleration 0-100 km/h:
9.1 seconds
9.9 seconds
Mercedes C class is more dynamic to drive. Mercedes C class engine produces 30 HP more power than Audi A4, whereas torque is 80 NM more than Audi A4. Thanks to more power Mercedes C class reaches 100 km/h speed 0.8 seconds faster.
Fuel consumption
Fuel consumption (l/100km):
7.1
5.8
Real fuel consumption:
7.9 l/100km
6.8 l/100km
The Audi A4 is a better choice when it comes to fuel economy. By specification Mercedes C class consumes 1.3 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 195 litres more fuel. By comparing actual fuel consumption based on user reports, Mercedes C class consumes 1.1 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, but under equal conditions the average life of a Mercedes C class engine could be longer.
Engine production duration:
8 years
5 years
Engine spread:
Installed on at least 4 other car models, including Mercedes E klase, Mercedes ML, Mercedes G klase
Installed on at least 2 other car models, including Audi A6, Audi A3
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:
4.54 m
4.59 m
Width:
1.73 m
1.77 m
Height:
1.47 m
1.43 m
Mercedes C class is smaller, but slightly higher. Mercedes C class is 5 cm shorter than the Audi A4, 4 cm narrower, while the height of Mercedes C class is 4 cm higher.
Trunk capacity:
no data
442 litres
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
