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:
116 HP
102 HP
Torque:
155 NM
148 NM
Acceleration 0-100 km/h:
13.3 seconds
13 seconds
Volkswagen Passat engine produces 14 HP more power than Audi A4, whereas torque is 7 NM more than Audi A4. Despite the higher power, Volkswagen Passat reaches 100 km/h speed 0.3 seconds later.
Fuel consumption
Fuel consumption (l/100km):
7.9
7.8
Real fuel consumption:
8.2 l/100km
8.2 l/100km
By specification Volkswagen Passat consumes 0.1 litres more fuel per 100 km than the Audi A4, which means that if you drive 15,000 km in a year, the Volkswagen Passat could require 15 litres more fuel.
Fuel tank capacity:
70 litres
70 litres
Full fuel tank distance:
880 km in combined cycle
890 km in combined cycle
850 km with real consumption
850 km with real consumption
Engines
Average engine lifespan:
350'000 km
460'000 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 A4 engine could be longer.
Engine production duration:
4 years
10 years
Engine spread:
Installed on at least 7 other car models, including Volkswagen Golf, Skoda Octavia, Audi A3
Installed on at least 3 other car models, including Volkswagen Passat, Audi A3, Seat Exeo
In general, the longer and for more car models an engine is produced, the better its serviceability and availability of spare parts.
Audi A4 has fewer problems. According to annual technical inspection data Volkswagen Passat has serious deffects in 20 percent more cases than Audi A4, so Audi A4 quality is probably better
