Audi A4 is more dynamic to drive. Audi A4 engine produces 38 HP more power than Audi A6, whereas torque is 40 NM more than Audi A6. Thanks to more power Audi A4 reaches 100 km/h speed 1.1 seconds faster.
Fuel consumption
Fuel consumption (l/100km):
9.3
10.6
The Audi A4 is a better choice when it comes to fuel economy. Audi A4 consumes 1.3 litres less fuel per 100 km than the Audi A6, which means that by driving the Audi A4 over 15,000 km in a year you can save 195 litres of fuel.
Fuel tank capacity:
70 litres
70 litres
Full fuel tank distance:
750 km in combined cycle
660 km in combined cycle
1010 km on highway
970 km on highway
Audi A4 gets more mileage on one fuel tank.
Engines
Average engine lifespan:
360'000 km
530'000 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 A6 engine could be longer.
Engine production duration:
6 years
8 years
Engine spread:
Used also on Audi A6
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. Audi A4 might be a better choice in this respect.
Audi A4 2004 3.1 engine: The engine is prone to piston ring sticking and oil consumption, often requiring replacement of the pistons with forged ones. Frequent oil changes can help mitigate this issue, as can occasional high-speed ... More about Audi A4 2004 3.1 engine
Audi A6 2004 3.0 engine: This engine is known for several recurring issues, most notably the short lifespan of ignition coils, which frequently fail and cause the engine to misfire. This issue is typically accompanied by a Check ... More about Audi A6 2004 3.0 engine
Dimensions
Length:
4.59 m
4.92 m
Width:
1.77 m
1.86 m
Height:
1.43 m
1.46 m
Audi A4 is smaller. Audi A4 is 33 cm shorter than the Audi A6, 9 cm narrower, while the height of Audi A4 is 3 cm lower.
Trunk capacity:
460 litres
546 litres
Trunk max capacity: with rear seats folded down
720 litres
no data
Audi A6 has more luggage space. Audi A4 has 86 litres less trunk space than the Audi A6.
Audi A4 has slightly fewer faults. Deffect rate in annual technical inspection is similar for both cars, it's slightly higher for Audi A6, so Audi A4 quality could be a bit better.
