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:
150 HP
130 HP
Torque:
330 NM
285 NM
Acceleration 0-100 km/h:
9.3 seconds
10.7 seconds
BMW 3 series is more dynamic to drive. BMW 3 series engine produces 20 HP more power than Audi A6, whereas torque is 45 NM more than Audi A6. Thanks to more power BMW 3 series reaches 100 km/h speed 1.4 seconds faster.
Fuel consumption
Fuel consumption (l/100km):
5.7
5.7
Fuel tank capacity:
63 litres
70 litres
Full fuel tank distance:
1100 km in combined cycle
1220 km in combined cycle
1400 km on highway
1520 km on highway
960 km with real consumption
1070 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:
420'000 km
420'000 km
Engine resource depends largely on regular maintenance and the quality of the oils and fuels used.
Engine production duration:
9 years
8 years
Engine spread:
Installed on at least 2 other car models, including BMW 1 sērija, BMW X3
Installed on at least 3 other car models, including Volkswagen Passat, Audi A4, Skoda Superb
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.
BMW 3 series is smaller. BMW 3 series is 32 cm shorter than the Audi A6, 7 cm narrower, while the height of BMW 3 series is 7 cm lower.
Trunk capacity:
435 litres
455 litres
Trunk max capacity: with rear seats folded down
1345 litres
no data
BMW 3 series has 20 litres less trunk space than the Audi A6.
Turning diameter:
10 meters
11.7 meters
The turning circle of the BMW 3 series is 1.7 metres less than that of the Audi A6, which means BMW 3 series can be easier to manoeuvre in tight streets and parking spaces.
Audi A6 has fewer problems. According to annual technical inspection data BMW 3 series has serious deffects in 10 percent more cases than Audi A6, so Audi A6 quality is probably slightly better
