A brake reaction and travel
When the brake pads become thinner, the car's braking reaction will become slow, we need to be deeper and heavier to brake the brakes to achieve the previous braking effect. When you find the brakes before the half of the brake effect is significantly reduced, the brake becomes soft, a little brake, you have to see whether the need to replace the brake pads.
2. Look at the thickness of the brake pads
When the brake pads become very thin when the thickness of the brake performance will be a substantial decline in the impact of traffic safety. Generally the thickness of the new brake pads in 1.5cm or so, when the brake pads to wear only 0.5cm, you have to increase the frequency of self-test. When the brake pad wear to only 0.3cm when you must be replaced in time, this is the brakes the thinnest replacement limit, do not drag, minutes out of a car accident.
In addition, each brake pads on both sides of a protruding sign, the logo thickness of about two or three millimeters, if the brake plate thickness has been parallel with this mark, you must change. Some relatively high-end models, the brake pads are too thin when the instrument hand brake light position will be prompted, the owners pay attention.
3. Listen to the sound of the brakes
When you step on the brakes, try to listen to the sound when the brakes. If you hear a sharp sound like iron grinding iron, you should pay attention to the brake pads on both sides of the limit logo has been directly friction brake discs, that brake pads have exceeded the limit, this time must be replaced. You have to know the price of car brakes more expensive than the brake pads, so this time you not only to replace the brake pads, but also check the brake disc.