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Does the brake disc rust normally?

General brake disc rust is actually a normal phenomenon, and there is no inevitable connection with the quality. Now most of the family car brake discs are cast iron material, not like the body surface to do rust treatment, and long-term exposure, sun and rain, after a long time parking, the surface is easy to generate some rust. Even the new car in the 4S shop will have this situation if it is parked outdoors for a long time. Brake disc rust will have a certain impact on the brake system, but do not have to fight, the problem is not serious, the owner can deal with their own.

Car brake disc rust how to do?

1. Slight rust

If it is only a slight rust, it can be removed by continuous braking while driving. Because disc brakes rely on the friction between brake calipers and brake pads to brake, multiple braking can wear off the rust, of course, the premise is to be in a safe section of the road.

2. Moderate rust

Mild rust can take the above “polishing” method, but severe rust is not applicable. Because the rust is too stubborn, when braking, the brake pedal, the steering wheel and so on will have obvious jitter, not only can not “polish”, but also reluctantly accelerate the wear of the brake pads. So in this case, it is best to find a professional maintenance personnel to remove the brake disc for polishing and clean the rust.

3, serious rust

However, if the rust is particularly serious, even the professional repair shop can not do anything about it, can only replace a brake disc. So if the vehicle is often placed in a state, the owner had better maintain the brake disc every two months, so as not to cause serious corrosion of the brake disc, but also convenient to drive on the road at any time.

However, if the rust is particularly serious, even the professional repair shop can not do anything about it, can only replace a brake disc. So if the vehicle is often placed in a state, the owner had better maintain the brake disc every two months, so as not to cause serious corrosion of the brake disc, but also convenient to drive on the road at any time.

How can we prevent the brake disc from rusting?

1, beware of small scars

Lacquer surface often appears rust, in addition to the common collision, scratch, the small stone of the car tire when driving hits the lacquer surface, also can make the lacquer surface appear one by one peeling small points, a long time will produce small rust spots. And these small scars because most of them in the inconspicuous place, easy to be ignored. Therefore, it is necessary to regularly check the body, engine hatch cover and body around, once found to be timely to the professional beauty shop for processing.

2, check the humidity of easy water

On the way to the vehicle, it is inevitable to meet the rain and snow weather or pass by the muddy water road surface. Some gaps such as the bottom of the body and the floor of the car are easy to accumulate sludge. If the owner does not clean in time, it will allow the moisture to be hidden. Therefore, for the inner and outer edge of the wheel hub, the door, the bottom corner of the trunk, the keyhole of the door and the active part of the wiper frame, etc., should be checked frequently, and at the same time, to keep the door and the body of each part of the drain hole unimpeded, check the humidity of the car covering, such as carpet, to prevent the rust of the floor parts.

3. The soft paint surface of the brake disc is sealed

Some of the paint surface is soft vehicles, in the process of high-speed driving sand particles hit the car body may also cause fine carry marks. For this kind of car, you can give the body to do sealing glaze, it can form a network of strong protective film, improve the hardness of the paint surface, the effect can be maintained for about a year. And coating can also achieve a similar effect. In addition, the bottom of the vehicle can be chassis armor or sealing plastic, which can protect the chassis against acid rain and corrosion, so that the original protective layer is not easy to dry and fall off, and can also prevent the impact of small stones on the chassis.

Brake system inspection

Owners should often check the car braking system, in addition to the brake disc rust, but also need to pay attention to two problems.

1, brake pad thickness

The limit thickness of the brake pad replacement is about two or three millimeters, and the thickness must be replaced. Some models in the brake pads too thin, the instrument brake alarm light will be prompted, more convenient. Without the brake alarm, the brake caliper will form a brake abnormal sound to remind the driver when it is close to the thinest thickness. If it is a drum brake, in the light brake accompanied by the iron rub iron sound, or the position of the hand brake becomes high, it shows that the brake pads must be replaced at this time.

2. Brake fluid

High quality brake fluid is the basis of driving safety and good brake system performance. The brake fluid should be replaced regularly and cannot be reused. If the brake fluid is dirty, drain it immediately and flush the whole system, then fill the main cylinder with fresh fluid. But if there is always a lack of brake oil for a long time and you need to add it frequently, it is obvious that there is something wrong with the brake system, and you should carefully check it.

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