When I Pick Up The New Car, The Brake Disc Is Rusty（2）?
1. Generally speaking, the brake pads need to be replaced about 30000 or 40000 km, while the mileage of brake disc replacement is about 70000 or 80000 km.
Of course, the change of mileage is not absolute. It is determined by the driving habits of the car owners (whether they like to brake suddenly), road conditions and other factors. If the warning light of the brake disc lights up, it means that the loss has reached the limit and it needs to be replaced immediately.
2. Check whether there are deep grooves on the brake disc. When the total thickness of deep grooves on both sides exceeds 3mm, the brake disc needs to be replaced.
3. If the replacement frequency of the brake pads is very high, you can observe the thickness of the brake pads more. If the wear of the brake discs is too large, you also need to replace them in time, because the wear of the brake pads and the brake discs are generally corresponding.
4. It is recommended that the brake pads and brake discs should be replaced together, and the left and right brake discs should be replaced at the same time.
If you only change the brake pads, the new ones don't fit well with the old ones, and there may be noise or shaking. Generally, the working time for changing a set of brakes is about 2 hours (two sets for the front brake and the rear brake). If you change the brake discs at this time, it is equivalent to complete rework. The price of working hours is much higher than that of two brake discs.
Pay attention to these in daily maintenance of brake disc
The brake disc will generate a lot of heat when braking, so don't wash the car immediately after braking. Turn off the engine to reduce the surface temperature of the brake disc, so as to prevent the deformation and cracks of the high temperature brake disc due to thermal expansion and contraction when contacting with cold water.
In addition, the best way to improve the service life of the brake disc is to keep good driving habits and try to avoid sudden stop~
Last last!! Don't oil it!!
Some people try to prevent the brake disc from rusting,
Oil or butter will be applied regularly
Oil does prevent rust
But!!!
The oil on the surface of the brake disc will reduce the braking capacity
As a result, there is almost no friction between the brake pad and the brake disc
This explains why Qibao mentioned above
"There is not too much coating protection on the brake disc ~"
A good car is afraid to let go and drive. I often take my car out for a walk
It can reduce the rust of brake disc
For your driving safety
Do regular maintenance on the brake disc