Timing belt usually needs to be replaced more often than the chain, but it is usually significantly cheaper. Timing belt motors are generally quieter and less vibrating than chain motors.
Performance
Power:
155 HP
184 HP
Torque:
310 NM
390 NM
Acceleration 0-100 km/h:
9.4 seconds
8.2 seconds
BMW 3 series is a more dynamic driving. Audi A4 engine produces 29 HP less power than BMW 3 series, whereas torque is 80 NM less than BMW 3 series. Due to the lower power, Audi A4 reaches 100 km/h speed 1.2 seconds later.
Fuel consumption
Fuel consumption (l/100km):
6.8
8.0
The Audi A4 is a better choice when it comes to fuel economy. Audi A4 consumes 1.2 litres less fuel per 100 km than the BMW 3 series, which means that by driving the Audi A4 over 15,000 km in a year you can save 180 litres of fuel.
Fuel tank capacity:
66 litres
63 litres
Full fuel tank distance:
970 km in combined cycle
780 km in combined cycle
1200 km on highway
1010 km on highway
Audi A4 gets more mileage on one fuel tank.
Drive type
Wheel drive type:
Front wheel drive (FWD)
Rear wheel drive (RWD)
Engines
Average engine lifespan:
370'000 km
560'000 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 BMW 3 series engine could be longer.
Engine production duration:
2 years
12 years
Engine spread:
Installed on at least 2 other car models, including Audi A6, Skoda Superb
Installed on at least 3 other car models, including BMW 5 sērija, BMW X5, BMW 7 sērija
In general, the longer and for more car models an engine is produced, the better its serviceability and availability of spare parts. BMW 3 series might be a better choice in this respect.
Dimensions
Length:
4.55 m
4.47 m
Width:
1.77 m
1.74 m
Height:
1.43 m
1.42 m
Both cars are similar in size. Audi A4 is 8 cm longer than the BMW 3 series, 3 cm wider, while the height of Audi A4 is 1 cm higher.
Trunk capacity:
445 litres
440 litres
Audi A4 has 5 litres more trunk space than the BMW 3 series.
Turning diameter:
11.1 meters
10 meters
The turning circle of the Audi A4 is 1.1 metres more than that of the BMW 3 series, which means Audi A4 can be harder to manoeuvre in tight streets and parking spaces.
Audi A4 has fewer problems. According to annual technical inspection data BMW 3 series has serious deffects in 20 percent more cases than Audi A4, so Audi A4 quality is probably better
