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:
163 HP
140 HP
Torque:
340 NM
320 NM
Acceleration 0-100 km/h:
8.6 seconds
10 seconds
BMW 3 series is more dynamic to drive. BMW 3 series engine produces 23 HP more power than Audi A6, whereas torque is 20 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):
5.9
6.4
Real fuel consumption:
6.5 l/100km
7.5 l/100km
The BMW 3 series is a better choice when it comes to fuel economy. By specification BMW 3 series consumes 0.5 litres less fuel per 100 km than the Audi A6, which means that by driving the BMW 3 series over 15,000 km in a year you can save 75 litres of fuel. By comparing actual fuel consumption based on user reports, BMW 3 series consumes 1 litres less fuel per 100 km than the Audi A6.
Engine resource depends largely on regular maintenance and the quality of the oils and fuels used.
Engine production duration:
9 years
4 years
Engine spread:
Used also on BMW 1 sērija
Used only for this car
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:
4.52 m
4.93 m
Width:
1.82 m
1.86 m
Height:
1.44 m
1.46 m
BMW 3 series is smaller. BMW 3 series is 41 cm shorter than the Audi A6, 4 cm narrower, while the height of BMW 3 series is 2 cm lower.
Trunk capacity:
460 litres
565 litres
Trunk max capacity: with rear seats folded down
1385 litres
no data
Audi A6 has more luggage space. BMW 3 series has 105 litres less trunk space than the Audi A6.
Turning diameter:
11 meters
12 meters
The turning circle of the BMW 3 series is 1 metres less than that of the Audi A6, which means BMW 3 series can be easier to manoeuvre in tight streets and parking spaces.
BMW 3 series has slightly fewer faults. Deffect rate in annual technical inspection is similar for both cars, it's slightly higher for Audi A6, so BMW 3 series quality could be a bit better.
