What is the normal brake pad thickness in mm?

The thickness of new brake pads is usually about 1.5cm. However, with friction during use, its thickness will gradually decrease. When the thickness of the brake pads is reduced to 1/3 of the original thickness (about 0.5cm), car owners should check themselves more frequently and be pre pared to replace them. Due to the wheel hub design of some models, it may not be possible to directly observe the brake pad thickness with the naked eye. In this case, the tire needs to be disassembled for inspection.
In addition, there is usually a raised mark on both sides of the brake pad. The thickness of this mark is about 2-3mm, which is also the thinnest replacement limit of the brake pad. When the thickness of the brake pad is parallel to this mark, it must be replaced. When the brake pads approach this mark, car owners should be ready to replace them at any time. However, it is difficult to accurately observe the thickness of the brake pads with the naked eye without removing the tire. Fortunately, many modern models have a handbrake light on the dashboard that warns when the brake pads are too thin, making self-inspection much more convenient.

When checking the condition of the vehicle, the thickness of the brake pads is one of the key factors in deciding whether to replace it. For disc brakes, we can evaluate their wear through visual observation. In normal use, the brake pads will gradually wear with each braking, and the initial thickness will be about 5cm. Professional advice points out that when the thickness of the brake pads is reduced to 1/3 of the original thickness, that is, about 0.5cm, the car owner should increase the frequency of self-inspections and be ready to replace the brake pads with new ones.

There are three ways to accurately measure brake pad thickness: first, you can estimate by looking at the wheel hub gap; second, you can use a specially designed measuring tool for accurate measurement; finally, pay attention to the dashboard The handbrake light on the car will warn you if the brake pads are too thin. During operation, keep your line of sight at an angle of 15° to the wheel hub plane to observe the actual state of the brake pads.

However, there may be errors in judging by the naked eye, so it is highly recommended to use professional tools for measurement to ensure the accuracy of the data. At the same time, when judging the degree of brake pad wear, the overall wear of the brake pad should be compre hensively considered, not just the thickness.

Do not ignore severely worn brake pads, as this may seriously affect driving safety. Once the brake pads are found to be severely worn, they should be replaced immediately to ensure braking performance during driving. Regular inspection and maintenance are important steps to ensure driving safety and cannot be ignored.