What should I do if my car’s brake disc is rusted? Is it normal for the brake disc to rust?
The thunderstorms last weekend will continue into this weekend. Wet weather can also have some impact on vehicles. None of us want to see this body of steel become rusty all over, and most of the area of the car body has been treated with anti-rust treatment, so we don’t have to worry about this.
The brake discs are mostly made of cast iron, and they are exposed to the outside for a long time. The working environment is relatively harsh, and they are often exposed to the test of both ice and fire. If the vehicle is parked for a long time or is located in a humid environment, some rust will form on the surface of the brake disc, and these rusts will more or less affect the normal operation of the braking system. Therefore, we must consciously remove them Clear.
If there is only slight rust on the surface, we can remove it by continuously braking while driving. Of course, this is under the premise of ensuring safety and not affecting public transportation. While driving, lightly apply the brakes and let the friction between the brake pads and the brake disc “polishes” the surface.
If the rust is serious, we do not recommend using the above method of applying the brakes to remove rust. When there is a lot of rust, the surface of the brake disc will be uneven. In this case, braking will cause the body to vibrate, and the driver can clearly feel abnormalities in the brake pedal, steering wheel and body. At this time, it will be difficult to remove the rust. Even if it is barely “polished”, it will cause abnormal wear of the brake pads afterwards, and there will still be jitter.
So we’d better drive the vehicle into the repair shop, remove the brake disc, use sandpaper to polish off the rust, check whether there are any abnormalities on the surface of the brake pads, and conduct a road test after installation. Driving on a flat road at a speed of 70KM/H and braking multiple times to ensure there are no abnormalities. If jitter still occurs, it means that the surface of the brake disc is uneven and needs to be further polished and leveled or replaced as appropriate.
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