Volkswagen four-wheel drive systems work hard to keep you safe, linking with other active safety systems on your Volkswagen to constantly monitor driving conditions. It reacts to even the slightest wheel slip and automatically sends the right amount of power to the wheels with the most grip. The second it detects a problem, it delivers extra traction where it's needed.
As a driver, you get reassuring stability and optimum control. And the confidence that your Volkswagen can safely tackle the roughest roads and the worst weather conditions. That lets you relax and enjoy your drive, knowing that 4MOTION is always on the alert to keep you safe and help you out of tricky situations. It will take snow and ice, slippery roads and muddy tracks in its stride, and help you get out of places where a normal car would be stuck.
Split-second action.
All this happens in milliseconds,through control units that are linked to the car's dynamic sensors, engine management system and gearbox. At the heart of the four-wheel drive system is an inter-axle differential -the design varies depending on the particular system. The differential's job is to share power between the front and rear axle, sending it where it's most needed. If the system senses a loss of traction - caused, for instance, by the wheels on one axle spinning on a slippery surface - it will split the wheels' turning power as needed - almost instantly - to correct the problem.
At the same time, the smaller differences in rotational speed, that happen when cornering or manoeuvring, have to be balanced to stop torsional stresses in the drive train. And the differential must be able to work with the car's other active safety systems such as Anti-lock Braking System (ABS) and the electronic stability programme (ESP). In order to meet all these different demands, we offer our four-wheel drive system in three differential variants. They are called:
- Haldex clutch
- Torsen differential
- Lockable centre differential
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