What should I do if the brake pads are rusty? Does it affect the brakes?
What should I do if the brake pads are rusty? Does it affect the brakes?
Some friends often ask: the brake disc is rusty, will the brake not work? Isn't it time to change? But the problem is that the car is not old, is it a quality problem? In fact, we often encounter the problem of brake disc rust, but will it definitely affect the brake, or must be a quality problem? Not necessarily. Let's talk about this problem. Okay? The car has not been used for a few years, why will the brake disc rust?How to deal with it?
Many people do not understand why the brake disc rust, worried that it will cause a decline in braking performance. In fact, most of the brake discs of the family car are cast iron materials, unlike the rust prevention treatment of the body surface, and long-term exposure to the sun and rain, the working environment is harsh, especially if it is parked for a long time, the surface is easy to generate some rust. This situation can also be seen in the new car storage yard of the 4S shop, these are new cars, but there will be this situation when parked outdoors for a long time. The general brake disc rust is actually a normal phenomenon, and there is no necessary connection with the quality. However, it still has a certain impact on the brake system, but it is not necessary to fight, these problems can be handled by the owner.
If it is only slight rust, we can use the method of continuous braking while driving to remove rust, because the disc brake is to brake by the friction between the brake caliper and the brake pad, the rust can be worn away under multiple braking.Of course, do this method in a safe road section. This is how you "polish" a slight rust. If the rust is serious, the above method is not applicable, and obvious shaking of the brake pedal, steering wheel and so on will be found during braking. This situation has to be dealt with specifically, because the rust is too "stubborn", not only "polishing" can not be done, but also accelerate the wear of the brake pads. In this case, we need to find a repair shop to remove the brake disc and polish it to clean up the rust.
In addition to rust, what problems should the car brake system pay attention to?
In addition to conditions such as rust that we can easily see, the inspection of the brake system we should pay attention to two aspects. The first is the thickness of the brake pad, the limit thickness of the thinnest replacement of the brake pad is about two or three millimeters, and the limit must be replaced. At present, many models in the brake pad is too thin when the instrument brake alarm lamp position will be prompted, relatively more convenient self-test. And vehicles without brake alarms do not have to worry, because the brake caliper will have a prominent position near the thinnest thickness, forming a brake abnormal sound to remind the driver.
If it is a drum brake, you can listen to the sound of "iron rubbing iron" while tapping the brake, or check the position of the handbrake becomes higher, and the brake pads must be replaced immediately.
Another aspect of brake system inspection to pay attention to is brake fluid, high quality brake fluid is the basic safety and good brake system performance. To replace brake fluid regularly, all brake fluid that is discharged from the system should be discarded and not reused. Buy the best quality brake fluid on the market. If the brake fluid is dirty, drain and flush the entire system, then fill the master cylinder with fresh fluid. If there is a constant shortage of brake oil for a long period of time, and you are constantly adding it, it is clear that your brake system is faulty and you should have it checked.
