Many people say that whether a car is safe depends on whether he can stop when it is critical, but there are many people who drive badly and will not consider whether it is time to replace the brake pads, which is actually a very dangerous behavior, although for the time being, the car is quite easy to drive. But when danger comes, especially after rain or snow, your braking system can be dangerous.
Where are the brake pads in the car?
As a first step in understanding the braking system, let's start with the structure of the braking system.
Now most of the small vehicles are using disc brakes, disc brakes are also called disc brakes, brake pads and brake discs are two parts, the main explanation of the brake pads today (that is, the friction pads shown in the figure), brake pads need to be replaced regularly, if the replacement is not timely, the brake disc will be damaged, and the brake failure will cause a big disaster.
How can I tell if I need to replace my brake pads?
Method 1: Look at the thickness
The thickness of a new brake pad is generally about 1.5cm, and the thickness will gradually become thinner with continuous friction in use. Professional technicians suggest that when the thickness of the brake pads is only about 1/3 of the original thickness left by the naked eye, the owner should increase the frequency of self-inspection and be ready to replace it at any time.
Each pad has a raised logo on both sides, and if the pad thickness is already parallel to this mark, it must be replaced.
Observe that the brake pads can pass through the gap of the wheel, of course, due to the design of the wheel, individual models do not have the conditions to be viewed by the naked eye, and the tire needs to be disassembled.
Method 2: Listen to the sound
Attentive car owners will find that if their car is not driven for a few days, the brake disc will appear obvious rust. If you look closely, there will be many subtle scratches on the surface of the brake disc that has been used for a while, so do you need to replace the brake disc? The answer is no.
The brake disc is mostly iron, especially in rainy days after a long time of parking, it is easy to appear rust, which is to step on the brakes at the same time accompanied by the sound of "iron rubbing iron", but this sound will disappear after driving for a period of time after stepping on the brakes, but if it does not improve after a period of time, the brake pads must be replaced immediately. Because the limit markings on both sides of the brake pads have directly rubbed against the brake disc, it proves that the brake pads have exceeded the limit. And in this case, the brake pads should be replaced at the same time with the inspection of the brake disc, when this sound often the brake disc has been damaged, even if the new brake pad is replaced, the sound can not be eliminated, and the brake disc needs to be replaced in serious cases.
Tip: When you hear the sound of the brakes, it is often too late, and the brake disc will be more or less damaged. The price of brake discs is much higher than that of brake pads, so it is recommended that you check the brake pads frequently to avoid damage to the brake disc.
Method 3: Check the strength
When the brake pads become thinner, our braking effect will be affected, at this time we need to step on the brake pedal more deeply to achieve the braking effect that can be achieved by the original light pedal, the first half of the braking effect is significantly weakened, many people feel that their brakes become softer, a little unstoppable, at this time it is necessary to check whether the brake pads need to be replaced.
Tip: This method is relatively abstract and may be a little difficult to grasp based on feelings, so it is important to develop a good self-inspection habit. In addition, the reduction of braking effect will lead to an increase in brake fluid consumption, so it is important to check the condition of brake fluid when replacing brake pads.
How to choose qualified brake pads?
The quality of brake pads is uneven, the easiest way for us to buy is to buy the original product, it should be noted that we need to find out the model of the brake pads of our car, and the size of the brake pads of the front and rear wheels is different.
If you buy analogue, you should choose a big brand, and carefully read the parameters on the package to see if it is suitable for your own model.
Finally, the replacement of brake pads requires professional tools and professionals to operate, the owner of the bar reminds everyone not to try it easily, and to go to the 4S shop or maintenance shop as soon as possible when you find that your car needs to replace the brake pads.