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:
140 HP
122 HP
Torque:
320 NM
280 NM
Acceleration 0-100 km/h:
9.7 seconds
11 seconds
Audi A4 is more dynamic to drive. Audi A4 engine produces 18 HP more power than BMW 3 series, whereas torque is 40 NM more than BMW 3 series. Thanks to more power Audi A4 reaches 100 km/h speed 1.3 seconds faster.
Fuel consumption
Fuel consumption (l/100km):
5.7
5.6
Real fuel consumption:
6.8 l/100km
6.3 l/100km
The BMW 3 series is a better choice when it comes to fuel economy. By specification Audi A4 consumes 0.1 litres more fuel per 100 km than the BMW 3 series, which means that if you drive 15,000 km in a year, the Audi A4 could require 15 litres more fuel. By comparing actual fuel consumption based on user reports, Audi A4 consumes 0.5 litres more fuel per 100 km than the BMW 3 series.
Fuel tank capacity:
70 litres
61 litres
Full fuel tank distance:
1220 km in combined cycle
1080 km in combined cycle
1550 km on highway
1380 km on highway
1020 km with real consumption
960 km with real consumption
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:
420'000 km
390'000 km
Engine resource depends largely on regular maintenance and the quality of the oils and fuels used.
Engine production duration:
5 years
9 years
Engine spread:
Installed on at least 2 other car models, including Audi A6, Audi A3
Used also on BMW 1 sērija
In general, the longer and for more car models an engine is produced, the better its serviceability and availability of spare parts.
Dimensions
Length:
4.59 m
4.52 m
Width:
1.77 m
1.82 m
Height:
1.43 m
1.42 m
Audi A4 is 7 cm longer than the BMW 3 series, 5 cm narrower, while the height of Audi A4 is 1 cm higher.
Trunk capacity:
460 litres
460 litres
Trunk max capacity: with rear seats folded down
833 litres
460 litres
Turning diameter:
11.1 meters
11 meters
The turning circle of the Audi A4 is 0.1 metres more than that of the BMW 3 series.
Audi A4 has slightly fewer faults. Deffect rate in annual technical inspection is similar for both cars, it's slightly higher for BMW 3 series, so Audi A4 quality could be a bit better.
