It feels different after changing the brake fluid, the brake is too hard just after changing the brake fluid

Brake FluidAs one of the consumables of automobiles, they naturally need to be replaced regularly. However, some friends reported that they felt different after changing the brake oil, and felt that the foot feels harder than before. So, what is going on, today I will give you an answer.

It is a normal phenomenon that the brakes are too hard just after the brake fluid is changed, because after changing the brake fluid, it takes a period of time to run-in.As long as you drive lightlyBrakes, It is enough to make the brake fluid to accelerate the running-in, and the original foot feeling will be restored soon. But it also has a certain relationship with the quality of the oil, so it is best for you to buy through regular channels, so as not to be taken advantage of by yourself.

However, if the foot feels become much softer, you have to mention it separately. It is most likely that an error occurred during the replacement process, which caused air to enter the brake hose and need to be discharged in time.

If left alone, the moisture and impurities in the air will directly affect the water content of the brake fluid (reducing the boiling point of the brake fluid). Not only will there be a certain chance that the system will vaporize and cause air resistance, which will cause slow braking of the vehicle. Even the brake fails, and the stability of the brake fluid is also affected. Therefore, it is necessary to discharge the air in the oil pipe.

The method of braking air exhaust:

First of all, we need two people to cooperate in order to avoid mistakes. First, one person is responsible for stepping on the brake 4-5, and then another person is responsible for loosening the bleed screw on the brake cylinder. If there is really air in the oil pipe, a part of brake fluid and gas will be sprayed out at this time. Repeat the above operation. When all the brake fluid is sprayed out, it means that all the gas in the brake hose has been discharged. Finally, directly tighten the bleed screw and you are done.