What is Volkswagen's four-wheel drive system called?
2 Answers
Volkswagen's four-wheel drive system is called the Volkswagen 4MOTION system. The Volkswagen 4MOTION system can freely distribute power between the front and rear wheels according to different terrain conditions, and can even apply all driving force to a single wheel when necessary. The core technology of 4Motion is the Haldex central differential. The Haldex central differential has now evolved into a multi-plate clutch differential control system, which achieves intelligent torque distribution through the combined action of mechanical devices and electro-hydraulic control systems. This multi-plate clutch is arranged in different positions depending on the vehicle model, some near the rear axle differential, and some integrated with the transmission similar to Audi's approach. Its principle is similar to the clutch of a manual transmission car, except that the clamping force between the friction components is changed from spring force to hydraulic pressure. The basic structure is: the end of the input shaft is radially fixed to the clutch plates through splines; the output shaft is cast as one piece with the housing, and multiple clutch plates are also installed inside the housing. Torque distribution is achieved through the effect of hydraulic pressure on the clutch plates. The level of hydraulic pressure determines the amount of torque distributed, and the hydraulic pressure is generated by the ECU controlling the solenoid valve. With the ECU, it naturally becomes simple to determine when and where to distribute how much torque to each wheel.
I've always driven Volkswagen cars, and their all-wheel-drive system is called 4MOTION. I've driven the Tiguan quite a few times in rain and snow, and it feels very stable without easily losing traction. The system can automatically detect road conditions and distribute power to the wheels that need it, significantly improving grip. Whether driving in the city or on short trips, it provides much more confidence on slippery roads or when going uphill. Models like the Golf R or Touran also come with this system, which is simple to maintain—just a check every 5,000 kilometers. The fuel consumption is slightly higher than with two-wheel drive, but safety comes first. It's especially reassuring when traveling with kids in winter, without worrying about skidding. Overall, it's very practical.
