A: The maximum wear limit of the brake disc is 2 mm. After using the limit, the new brake disc must be replaced. However, in actual use, most car owners do not strictly enforce this standard. The frequency of replacement should also be measured according to your driving habits. The approximate measurement criteria are as follows:
1. Check the replacement frequency of the brake pads. If the frequency of replacement of the film is very high, it is recommended to check the thickness of the brake disc. After all, if you charge the film faster, it means that you use a lot of brakes, so check the brake disc regularly.
2. according to the wear situation to decide: in addition to normal wear, the quality of the brake pads or brake discs and the wear and tear caused by unknown objects during normal use. If the brake disc is worn by unknown objects with some deep grooves, or if the disc surface is worn out (some places are thin, some places are thick), it is recommended to replace it.Because this kind of wear and tear will directly affect our safe driving. Generally, the front brake disc is inspected every 60,000 km, and the rear brake disc is inspected every 120,000 km. The maintenance cycle specified by different car manufacturers is not exactly the same. The specific replacement cycle is subject to the requirements of the car manufacturer.