Applies to: vehicles with four-wheel drive
General notes
On four-wheel drive vehicles, the engine power is distributed to all four wheels as required. The distribution of power is controlled automatically according to your driving style and the road conditions. Also refer to link►.
The four-wheel drive system varies the distribution of power to the front and rear axles. It interacts with a selective wheel torque control, which intervenes when cornering link►. On vehicles with sport differential*, the power distribution to the rear wheels is variable and can be adjusted via drive select link►.
The four-wheel drive is specially designed to complement the superior engine power of your Audi. This combination gives the car exceptional handling and performance capabilities - both on normal roads and in more difficult conditions, such as snow and ice. Even so (or perhaps especially for this reason), it is important to observe certain safety points ►.
Winter tyres
Thanks to its four-wheel drive, your car will have plenty of traction in winter conditions, even with the standard tyres. Nevertheless, we still recommend that winter tyres or all-season tyres should be fitted on all four wheels when winter road conditions are expected, mainly because this will give a better braking response.
Snow chains
On roads where snow chains are mandatory, this also applies to cars with four-wheel drive link►.
Replacing tyres
On vehicles with four-wheel drive, all four tyres must have the same rolling circumference. Also avoid using tyres with varying tread depths link►.
- Even with four-wheel drive, you should always adjust your speed to suit the conditions. Do not let the extra safety provided tempt you into taking any risks when driving – this can cause accidents.
- The braking ability of your car is limited by the grip of the tyres. In this respect, your car is no different from a car without four-wheel drive. So do not be tempted to drive too fast on icy or slippery roads just because the car still has good acceleration in these conditions – risk of accident!
- On wet roads bear in mind that the front wheels may start to “aquaplane” and lose contact with the road if the car is driven too fast. If this should happen, there will be no sudden increase in engine speed to warn the driver, as with a front-wheel drive car. So do not drive too fast in the wet: adjust your speed to suit the conditions (accident risk).