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How to identify the quality of ceramic brake pads

Update:14 Sep 2018
Summary:

During the running of the vehicle, the ceramic brake pa […]

During the running of the vehicle, the ceramic brake pads are also constantly worn. For this reason, maintenance inspections should be carried out in order to avoid trials during the running of the vehicle. In general, the following methods must be mastered during the inspection of ceramic brake pads:

1. Look at the thickness: The thickness of a new brake pad is generally about 1.5cm, and it will gradually become thinner as the friction is constant during use. When the thickness of the brake pad is visually observed, only about 1/3 of the thickness (about 0.5 cm) is left. The owner must increase the frequency of the self-test and be ready to replace it. There are individual models that do not have the conditions for visual inspection due to wheel hub design and need to be disassembled to complete.

2, Feeling strength: When driving on the road, if you feel very hard, there is always a soft feeling. It is often necessary to step the brakes deeper to achieve the previous braking effect. When the emergency brake is taken, the pedal position will be obviously felt. If it is low, it may be that the brake pads have basically lost friction. At this time, it must be replaced, otherwise it will cause serious accidents. In addition, the brake effect is reduced, which will lead to an increase in brake oil consumption. Therefore, it is important to check the brake oil while replacing the brake pads.

3. Listening to the sound: If the brakes are accompanied by the sound of “iron shovel” or the squeaking sound (there may be the effect of the brake pads running at the beginning of installation), the brake pads must be immediately replace. Because the limit marks on both sides of the brake pads have directly rubbed the brake discs, it proves that the brake pads have exceeded the limit. Each brake pad has a raised mark on both sides. The thickness of this mark is about two or three millimeters. This is the limit of the thinnest replacement of the brake disc. If the thickness of the brake pad is parallel to this mark, it must be replaced. Therefore, when the thickness of the brake pad is close to this mark, the owner must observe and prepare at any time, but it is difficult to accurately observe it through the naked eye without disassembling the tire. It is recommended to go to the 4S shop or the regular repair shop for inspection to determine whether it needs to be replaced. .

4. Brake warning light: Whether the brake warning light on the instrument panel is lit is the basis for judging whether the brake pad should be replaced. Some high-end cars will have brake warning lights and in general the brake alarm line is only available on the front brake pads. When the warning light is on, it is quite dangerous if you change it at this time. Because this kind of warning system directly senses the thickness of the brake pad, and some of the brake pads are completely worn, and the brake oil is extremely lowered, so that the warning light is illuminated. If it is the latter, wait until the warning light is on, the metal base of the brake pad and the brake disc are already in the state of iron grinding iron. At this time, the sharp iron cutting will be seen near the edge of the rim of the tire. Therefore, we recommend regular inspection of brake pad wear.