How to see the wear degree of automobile brake pads
How to check the wear degree of automobile brake pads: check whether there is a deep groove exceeding 1mm on the brake disc, check whether the thickness on both sides of the brake disc is consistent, whether the brake disc is uneven or cracked, etc. Some brake disc products have wear indicators, that is, three small pits are distributed on the disc surface. Measure the depth of the pits with a vernier caliper to know the wear degree.
1. Check whether there is a deep groove exceeding 1mm on the brake disc, whether the thickness on both sides of the brake disc is consistent, and whether the brake disc is uneven or cracked. Some brake disc products have wear indicators, that is, three small pits are distributed on the disc surface. Measure the depth of the pits with a vernier caliper to 1.5mm, that is, the total wear depth of the brake disc on both sides reaches 3mm.
2. Listen to the sound: if the light brake is accompanied by the "iron rubbing iron" or the sound (or the effect of the brake pad running in at the beginning of installation), the brake pad must be replaced immediately. Because the limit marks on both sides of the brake pad have directly rubbed the brake disc, it proves that the brake pad has exceeded the limit.
Extended data: the replacement of brake pads depends on how long the gasket has been used in your car life. In general, the brake pads need to be replaced if they travel more than 80000km. However, if you hear the friction sound of your wheels, you should replace the brake pads regardless of the mileage. If you are not sure how many kilometers you have traveled, perhaps go to a free replacement pad shop, buy brake pads from them or go to a car service shop to install them.