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Blogger tests Xiaomi SU7 braking 22 times in a row over 100 kilometers: Brake pads caught fire and braking distance did not increase significantly

Re Feng Fri, Apr 12 2024 10:28 AM EST

On April 10th, a blogger conducted an extreme test on the braking system of the Xiaomi SU7 Max Founder's Edition.

The blogger mentioned that his Xiaomi SU7 underwent 22 consecutive full-force brakes over 100 kilometers. Due to limited testing equipment for measuring braking distance, the test data was not very precise.

The braking distance was not compared laterally with others' tests; the focus was solely on the changes in braking distance from the 1st to the 22nd attempt.

During the test, they conducted six consecutive 0-100 km/h brakes. While the braking distance slightly increased, the change was not significant. However, after the sixth attempt, the central control screen displayed a warning "Brake system overheated, performance limited."

Subsequently, they conducted multiple tests, and the ABS of the braking system started working, extending the braking distance, but it remained within 5 meters.

It wasn't until the 22nd braking test that a roadside photographer alerted them that the brake pads were on fire, with flames visible from the wheel hub, prompting them to terminate the test.

However, the blogger mentioned that the brake pads had actually caught fire since the 20th attempt, but the driver's braking feel remained unchanged, and the braking distance did not significantly increase.

Based on past experience, it's normal for the braking distance of other models on the market to increase by +10 meters or even double at this stage.

The blogger pointed out that under any circumstances on ordinary streets, the Xiaomi SU7 handled effortlessly, with a significant redundancy in the design of the braking system, surpassing expectations.

However, if it were on a racetrack, where frequent braking from 200 km/h to 100 km/h is required, the braking system would endure several times the pressure compared to emergency braking on the streets, possibly resulting in significant thermal degradation of the brakes.

Therefore, the blogger advised that in the factory state, it's best to avoid continuous track running with the original braking system, limiting it to just one lap on the track. s_9f15b79abb9744e7baa33f6500acf061.png

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