How to change the brake fluid of a car

Changing and bleeding the brake fluid is a delicate operation, because if you do not do it right you can be compromised your safety at the time of driving, so read this article well and do it alone if you are sure.

It is also dangerous to change the brake fluid because it is a very corrosive element, so if you do so, protect your eyes and hands well. You will need a person to help you. In .com we explain step by step how to change the brake fluid of a car.

You will need to:
  • An assistant, goggles, gloves, brake fluid, two syringes, old fluid container, rubber sleeve, key to open the purge, jack and key to change the wheels.
Steps to follow:

one

If you do not detect any problems before, it will be enough to change your car's brake fluid every two years or every 40, 000 kilometers traveled.

two

Open the hood of the vehicle, which must be off and in a flat place. You must use a syringe directly on the brake fluid can of the car to extract the old one. Immediately, enter the new one. The goal is to prevent air from entering the system. If this were to occur, the brakes would not be 100% effective, so pay close attention to this point.

3

Then, you have to remove each of the wheels of the car, to access the brake caliper. The order that you must follow for this operation is the following:

  • Left rear wheel.
  • Right rear wheel.
  • Front left wheel.
  • Right front wheel.

4

On each of the wheels, what you have to do is the following. First, remove the plastic protection from the tube that comes out of the brake cylinder . Then, you must connect a rubber sleeve. At the other end of this instrument you must put a container in which the old liquid will be deposited.

5

Once these connectors are in the correct way, purging begins. Before loosening the screw of the trap, your partner must pump, that is to say, step on the brake repeatedly but without getting to the bottom.

6

Afterwards, you must open the trap and your assistant must slowly step on the brake until it reaches the bottom, so that the emptying begins. The footprint must be slow and, when it reaches the bottom, your assistant must warn you to close the trap.

7

After you have performed this operation with the first wheel, you must open the bonnet and check that the level of brake fluid in the boat is between the minimum and maximum levels. If it does not reach the minimum level, fill it in before continuing with the next wheel and close the pot.

8

Each time you finish the operation with each wheel, in addition to checking the brake fluid level of the boat, close the trap well, remove the sleeve and put the plastic protection, and then replace the wheel.