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
143 HP
Torque:
320 NM
300 NM
Acceleration 0-100 km/h:
9.9 seconds
9.6 seconds
BMW 3 series is a more dynamic driving. Audi A4 engine produces 3 HP less power than BMW 3 series, but torque is 20 NM more than BMW 3 series. Due to the lower power, Audi A4 reaches 100 km/h speed 0.3 seconds later.
Fuel consumption
Fuel consumption (l/100km):
5.8
4.8
Real fuel consumption:
6.8 l/100km
6.0 l/100km
The BMW 3 series is a better choice when it comes to fuel economy. By specification Audi A4 consumes 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 150 litres more fuel. By comparing actual fuel consumption based on user reports, Audi A4 consumes 0.8 litres more fuel per 100 km than the BMW 3 series.
Fuel tank capacity:
70 litres
61 litres
Full fuel tank distance:
1200 km in combined cycle
1270 km in combined cycle
1520 km on highway
1450 km on highway
1020 km with real consumption
1010 km with real consumption
Drive type
Wheel drive type:
Front wheel drive (FWD)
Rear wheel drive (RWD)
Engines
Average engine lifespan:
420'000 km
350'000 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:
5 years
17 years
Engine spread:
Installed on at least 2 other car models, including Audi A6, Audi A3
Installed on at least 6 other car models, including BMW 5 sērija, BMW 1 sērija, BMW X3, BMW X1
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:
4.59 m
4.52 m
Width:
1.77 m
1.82 m
Height:
1.43 m
1.44 m
Audi A4 is 7 cm longer than the BMW 3 series, 5 cm narrower, while the height of Audi A4 is 1 cm lower.
Trunk capacity:
442 litres
460 litres
Trunk max capacity: with rear seats folded down
no data
1385 litres
Despite its longer length, Audi A4 has 18 litres less trunk space than the BMW 3 series. This could mean that the Audi A4 uses more space in the cabin, so the driver and passengers could be more spacious and comfortable.
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.
