What should I do if the brake disc always rusts? Disc brake, almost every car we now have a brake mode, either front disc and back drum, heavy oil cleaner or front and rear disc. But for this kind of exposed brake disc, we often find that after a rain, the surface of the disc rusts. Is this normal? Will it affect? What should I do if the brake disc always rusts?

Disc brake, almost every car we now have a brake mode, either front disc rear drum, or front and rear disc. But for this kind of exposed brake disc, we often find that after a rain, the surface of the disc rusts. Is this normal? Will it affect the decline of braking performance? Shall we deal with it?

In fact, even if we go to the 4S store to pick up a new car, there is a great possibility that we will see a layer of rust on the surface of the brake disc. Don't feel uncomfortable because this is a very normal phenomenon.

The brake discs of our cars, whether they are solid discs or perforated ventilation discs, are made of cast iron. If they are made of iron, they will rust. Especially after rain, they will rust when they are oxidized with air. So, this is the material itself, which is the same. Moreover, the brake disc can not be antirust treated like the car body paint, because it is to clamp the brake disc through the brake pad, and friction will occur in the middle. Even if there is a antirust layer, if you step on the brake for a few feet, it will be friction free.

High quality heavy oil cleaning agent

Then some of us will think, can the brake disc be maintained for a long time after it is bought? In order to prevent it from rusting, we should regularly apply some oil and butter to it? Oil can really prevent rust, but have you neglected that the oil on the surface of the brake disc will reduce the braking capacity, resulting in almost loss of friction between the brake pad and the brake disc and brake failure, which is very dangerous.

In turn, why should we deal with this rusty surface? If not, will the braking performance be affected? Will it affect the service life of the brake disc?

Driving friends should know that when there is rust on the brake disc, when we step on the brake, we can obviously hear the friction sound of the brake disc "ho ho ho" when we step on the brake disc. This is obviously the sound of surface rust being rubbed, but the braking state is not affected.

Therefore, if the brake disc of our car is only oxidized and rusted for a short time, it will not affect the braking effect. Step on the brake a few times, and then get off the car to see, the rust spots will be basically worn away. Therefore, the good maintenance of the brake disc is not to care about it, but to gently step on the brake to restore good braking effect.

First of all, we should improve our driving skills. We can take "less braking" as a standard to improve our skills. However, we must not risk driving in order not to step on the brake. This is not my meaning. I mean, we should improve our predictive ability in the process of driving and try to step on the brake as little as possible.

In addition, if friends often drive on a mountain road and go down a long slope, they should not step on the brake as much as possible. Instead, they should shift to a lower gear and use the engine brake to control the speed.

What's more, if you step on the brakes a lot along the way, pay attention to the heat attenuation of the brakes. That is, when the brakes get hot, the braking capacity will be greatly reduced. You can often stop to rest and cool the brake discs. This kind of cooling is to let the brake disc naturally ventilate, do not use water to cool.

In addition, after we frequently use the brake, we should pay attention not to cross the road where there is water or wash the car immediately. All of these will cause water to hit the brake disc, which will cause the brake disc to be partially cold and deformed, leading to shaking of the steering wheel when we brake. Encounter this kind of situation, can only take off to give him planed, professional slang is called "CD".

The brake system is the most important safety part of our car. Over maintenance will increase the danger. But we also need to know the service life and service life of each part. How long does it take to replace each part of the brake?

You can reply to the two words of "brake" in our WeChat official account, and let you read an article like this again.

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