5.6.3 Mini Countryman
The engine is installed transversely. Under normal conditions the car is front-wheel drive. The thrust is transmitted to the rear axle from the gearbox through a pair of gears (it can be conventionally called a transfer mechanism). But a viscous drive is installed directly in front of the rear drive gear. As soon as there is wheel slip on the front axle, the clutch starts transmitting part of the torque from the engine to the rear wheels. In case if there is no need for traction on the rear wheels, the clutch discs open - and the car again becomes front-wheel drive.
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