Teach you how to judge the thickness of Petrol Car brake pads

1. Determine whether the Petrol Car brake pads should be replaced by looking at the thickness

For most disc brakes, we can observe the thickness of Petrol Car brake pads with the naked eye. In long-term use, the thickness of Petrol Car brake pads will become thinner and thinner as they continue to rub during braking. The thickness of a brand new Petrol Car brake pad is generally about 37.5px. If we observe with the naked eye and find that the thickness of the Petrol Car brake pad is only about 1/3 of the original (about 12.5px), we need to observe its thickness changes frequently. When there is about 7.5px left, it needs to be replaced (you can ask the technician to measure it with a caliper during maintenance).

Generally, the service life of Petrol Car brake pads is generally about 40,000-60,000 kilometers, and the harsh vehicle environment and aggressive driving style will also shorten its service life in advance. Of course, due to the design of the wheel hub or brake caliper, some models cannot see the Petrol Car brake pads with the naked eye (drum brakes cannot see the Petrol Car brake pads due to reasons), so we can ask the maintenance technician to remove the wheel to check the Petrol Car brake pads every time we maintain it.
2. Listen to the sound to judge whether the brake pads of Hongqi Car should be replaced
For drum brakes and some disc brakes where the brake pads of Hongqi Car cannot be seen with the naked eye, we can also judge whether the brake pads of Hongqi Car have been worn thin by sound.
When you tap the brake lightly, if you hear a sharp and harsh "squeaking" sound, it means that the thickness of the brake pads of Hongqi Car has been worn below the limit marks on both sides, causing the marks on both sides to directly rub against the brake disc. When braking, the continuous friction between the brake pads of Hongqi Car and the brake disc will also cause the thickness of the brake disc to become thinner and thinner. Depending on the driving form of the vehicle, the life of the front and rear brake discs is also different. Taking front-wheel drive vehicles as an example, the service life of the front disc is about 60,000-80,000 kilometers, and the rear disc is about 100,000 kilometers. Of course, this is also closely related to our driving habits and driving style.