Volkswagen 4Motion All-Wheel-Drive Features and Benefits
You may have heard of Volkswagen’s 4Motion All-Wheel-Drive for VW models like the Tiguan, Touareg and CC, and wondered what are its features and benefits. 4Motion is a technologically advanced permanent four-wheel-drive system that distributes the engine’s power as required, resulting in confident handling and traction in challenging terrain and weather conditions.
The 4Motion All-Wheel-Drive system increases traction reserves and conveys a reassuring sense of confidence for inclement weather or on rough roads. The system increases ride stability, as well as providing outstanding straight-line running and optimum side wind stability. 4MOTION offers not only decisive traction benefits, but also permits higher cornering speeds, thereby enhancing both safety and driving enjoyment.
How does 4Motion work?
4Motion distributes driving forces variably across the front and rear axles. If rotation speeds differ between the two axles, because one of them is slipping on icy or gravely ground, the system distributes torque accordingly across both axles, diverting a portion of it to the other axle as required. At the same time, minor differences in rotation speed during cornering or maneuvering also have to be compensated, to prevent torsional stresses in the drive train.
Another feature of the 4Motion is the Haldux clutch, which is an electronically controlled multi-plate clutch. Driving forces are distributed across the axles variably and adaptively according to driving conditions. The general principle behind the Haldex is allocation of driving forces to the axle with the better traction. In this way, 4MOTION is able to perfectly respond to any driving situation in an instant.
For models where the engine is installed longitudinally, a Torsen differential splits the force between the front and rear axles, according to demand. The word “Torsen” is made up of the words “torque” and “sensing,” indicating that the differential uses torque sensing that responds to varying rotational forces between the input and output shafts (front and rear axle). This enables variable distribution of driving torque between the axles.