When I pick up the new car, the brake disc is rusty?(1)
I found out when I picked up the new car,
Brake disc Unexpectedly Rusty!
Can I still have this car!
Don't panic!
Throw you a little science popularization!
New car brake disc rust phenomenon, super normal der!
The new car has been placed in the shop since the production. The brake discs are made of cast iron, without too much coating protection. If exposed to the air for a long time, it may also encounter humid environment, and it will be oxidized, that is, rust
The brake disc that can be used normally can achieve stable braking, no noise and no shaking, which is the basis of good braking function and security. Generally speaking, the brake disc rust will not affect the normal braking, but serious rust will cause poor braking effect, brake noise and body shaking and other problems, so flag officials must pay attention to rust removal and maintenance~
Second question:
How to distinguish the rust degree of your car's brake disc and how to deal with it?
1. Small end and large outer circle rust
Slight rust
From the perspective of braking safety, there is no impact.
If you care about the appearance, you can use rust remover to polish and clean.
2. The rust on the brake disc is pitted or thin
Slight rust.
Continuous braking can be used to remove rust. Because the disc brake relies on the friction between the brake caliper and the brake pad, the rust can be worn off under repeated braking, as clean as new. It only needs to drive on the premise of smooth road and safety, and take continuous braking.
3. Large area block, and the car body vibrates when braking
Serious rust!
When the surface of the brake disc is seriously rusted, and the brake pedal and steering wheel shake obviously when braking. Go to a professional 4S store to deal with it! If continuous braking is still used, it will accelerate the wear of brake pads!
Warm reminder:
If the rust is serious, the parts can only be replaced at the 4S store. Serious corrosion may cause abnormal wear to the brake disc, such as strain and groove, which further affects the braking performance. Regular replacement of consumables for a long-time service car can not only improve the performance of the car, but also extend the service life of the car, and ensure the safety of the driver! Remember to choose the original spare parts!
How to deal with the discoloration of brake surface?
When the surface or edge of the brake disc turns blue or red, there are generally two reasons: one is that the guide pin of the caliper doesn't return, or the brake is pulled; the other is that the high temperature is caused by continuous braking and long-time friction in the process of high-speed driving. Both of them will cause the thickness difference of brake disc, which will lead to the fluctuation of braking torque, thermal recession and color change. In fact, the brake disc reminds you that you need to check the brake cylinder and brake disc!