Warning! Take precautions when handling brake fluid: it is toxic. Brake fluid coming into contact with wires, plastic or painted body parts may cause damage. Therefore, always use clean rags when filling the tank. If liquid gets on parts, wipe them off immediately with a clean cloth.
Caution! Do not reuse the fluid drained from the system: it is contaminated and saturated with air and moisture.
Caution! Brake fluid is hygroscopic (absorbs moisture from the surrounding air), therefore it cannot be stored in an open container.
Use only brake fluid to fill the hydraulic system "FMVSS 571.116 DOT 4".
The order of replacing the fluid in the brake mechanisms:
- rear right;
- rear left;
- front right;
- front left;
- clutch drive.
Important! It is recommended to change the brake fluid with an assistant, placing the vehicle on an inspection pit or overpass.
1. Remove the master cylinder reservoir cap.
2. Clean the air release valve from dirt and remove its protective cap.
3. Place one end of the rubber hose over the valve and immerse the other end in a clean, transparent container.
4. The assistant should press the brake pedal sharply 4–5 times and leave the pedal pressed.
5. Unscrew the air release valve by 1/2 – 3/4 of a turn – old (dirty) brake fluid will start to flow out of the hose. In this case, the brake pedal should smoothly move to the stop. Once the liquid stops flowing, close the air release valve.
6. Repeat steps 4 and 5 until new (clean) brake fluid starts flowing out of the hose. Constantly monitor the fluid level in the reservoir, not allowing it to fall below the MIN mark, and add new brake fluid if necessary.
7. In the same way, replace the fluid in the remaining brake mechanisms and clutch drive.
8. Press the brake pedal several times. The pedal travel and resistance should be constant with each press. If these conditions are not met, then air has entered the brake system and it needs to be bled.