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Differences Between Torsen and Haldex Differentials in Audi Quattro

Model: Audi Q3 F3 - Years: 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
Part: Differential

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The Audi Quattro all-wheel drive system is associated with Torsen and Haldex differentials and refers to a family of all-wheel drive systems that Audi has developed over the years: the system with a mechanical locking center differential that uses a Torsen differential to distribute torque between the front and rear axles; the version with plate technology uses a hydraulic multi-plate clutch to disconnect the rear axle under normal driving conditions, thus improving fuel efficiency; the version with electric torque vectoring distributes torque not only between the axles but also among the individual rear wheels, further enhancing driving dynamics.

Now, let's look at the differences between Torsen and Haldex: The Torsen is a mechanical locking differential.

This means it automatically and continuously distributes torque to the wheels based on the traction of each wheel. It works by utilizing the friction between helical gears, which transmit torque proportionally to the slip of one wheel compared to the other.

The Haldex, on the other hand, is a multi-plate friction locking differential. Under normal conditions, most of the torque is sent to the front wheels.

When a wheel slips, an electronic control unit activates a pump that increases oil pressure, tightening the clutch discs and transferring torque to the rear axle.


Updated on 6 November 2026 by ScegliAuto


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