The air brake master cylinder is broken. How much does it cost to replace a brake master cylinder?

As we all know, the air brake master cylinder is the main part of the brake system. If the brake master cylinder is damaged, it will naturally have a great impact. Although there are no hints to light up, when we brake, we can clearly feel that there is indeed a problem with the brake. So what is the symptom of a broken air brake master cylinder, and how much does it cost to replace a brake master cylinder?

Symptoms of broken air brake master cylinder:

Brake is soft:

When we step on the brake, if we feel that the texture of the brake is obviously softer and the stability of continuously stepping on the brake is reduced, it may be due to poor sealing of the air brake master cylinder and wheel cylinder piston, or the brake pipe There was a rupture somewhere in the road, causing an oil leak.At this time we need to observe whether there isBrake FluidTraces of it.

The brake suddenly fails:

When the car is braking, if it feels that it suddenly fails for a moment, you need to observe itBrake fluidWhether there is any loss, then check the air brake master cylinder, sub-cylinder and oil pipe for signs of braking. If there is, it means that the brake master cylinder or the sub-cylinder has leaked very seriously, and it must be repaired in time. It is necessary to know that the consequences of brake failure are very dangerous.

Brake deviation:

If you feel that the brake direction is off, it may be due to the expansion of a piston of the air brake master cylinder, of course, it may also be caused by uneven brake wear. However, this phenomenon must be solved in time, because the direction of the deviation is difficult to control, especially for cars without ABS brake anti-lock system, there is a certain degree of danger.

The brake pedal does not return or returns slowly:

If after stepping on the brake pedal, the pedal neither rises nor resists, it is what we call the brake non-return phenomenon. At this time, we need to check whether the parts of the air brake master cylinder and the sub-cylinder are damaged. Secondly, this phenomenon may be caused by lack of brake fluid or oil leakage.

As for the replacement price of the air brake master cylinder, it actually depends on the model of your car. The price of different models is different. The more expensive the model, the higher the maintenance cost. Secondly, there is a discrepancy between the prices of 4S shops and car repair shops. If you go to a 4S shop for repairs, the cost is generally 500-1000YuanWithin, the auto repair shop is relatively cheap, the price is 300-800 yuan.