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Why is Audi Called Fake Four-Wheel Drive?

2 Answers

EleanorRose

07/29/25 6:14am

Currently, Audi's Quattro four-wheel drive system is divided into two forms: one is the on-demand four-wheel drive, and the other is the full-time four-wheel drive. The on-demand four-wheel drive system can be understood as a castrated version of the mechanical Quattro system, where the rear differential adopts a multi-plate differential, resulting in reduced performance. Therefore, this Quattro system using a multi-plate clutch is referred to as "fake four-wheel drive". The differences between on-demand four-wheel drive and full-time four-wheel drive are as follows: 1. Different working modes: On-demand four-wheel drive operates mostly in front-wheel drive mode. When the vehicle detects wheel spin, it uses brakes, ABS, and other means to brake the spinning wheel, thereby transferring power to the opposite wheel to help the vehicle escape. Full-time four-wheel drive, on the other hand, maintains a four-wheel drive state all the time, which greatly enhances vehicle stability. 2. Different differentials: On-demand four-wheel drive uses a multi-plate differential, while full-time four-wheel drive employs a purely mechanical Torsen differential lock, which is superior in both performance and reliability.

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OAurora

08/12/25 9:42am

As an automotive technology enthusiast, I've always felt there's some truth to the claim that Audi's quattro all-wheel drive is a 'fake' system. The main reason is its use of the quattro ultra system, which automatically switches to front-wheel drive on dry roads to save fuel. However, in emergencies like snow or muddy conditions, the torque distribution isn't as balanced as with traditional Torsen differentials, making it easy to criticize as an incomplete AWD system. This design is actually intended to improve fuel efficiency and reduce energy consumption, not to deceive. In real-world driving, I've experienced moments when turning in the rain where the rear wheels felt underpowered, which was slightly unnerving, but it does save significant fuel costs during daily commutes. I think people shouldn't just judge by labels - test driving at dealerships gives a more realistic understanding of its pros and cons. Safety should always come first.

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