Front wheel brake bleed valve
Rear wheel brake bleed valve
You will need:
- key "for 8"
- brake fluid
- rubber or transparent hose
- transparent vessel
It is recommended to replace the brake fluid with an assistant, having previously installed the car on an inspection ditch, overpass or lift.
Use only those brake fluids recommended by the manufacturer (see Attachment).
The sequence of fluid replacement in the brake mechanisms:
- rear right;
- front left;
- rear left;
- front right.
Attention! Do not reuse the fluid drained from the system: it is contaminated, saturated with air and moisture. Always add only new fluid of the brand that was previously filled into the system.
Attention! Brake fluid is hygroscopic (absorbs moisture from the surrounding air), so it can not be stored in an open container.
1. Unscrew the master cylinder reservoir cap while holding the low brake fluid sensor housing and place it on a clean rag. Be careful - brake fluid may drip from the float.
2. Remove dirt from the right rear brake bleed valve. Remove the rubber protective cap from the valve.
3. Place a rubber hose over the valve fitting and immerse the end of the hose in a clean, transparent container.
4. The assistant should sharply press the brake pedal 4-5 times (with an interval between pressing 1–2 s), and then keep the pedal depressed.
5. Loosen the air release valve ½-¾ turn. The old one will start to flow out of the hose (dirty) brake fluid. In this case, the brake pedal should smoothly reach the stop. As soon as the fluid stops flowing, close the air release valve.
6. Constantly monitor the level of fluid in the reservoir, not allowing it to drop to the lower edge of the reservoir mounting bracket, and add new brake fluid if necessary. Repeat steps 4 and 5 until new fluid flows out of the hose (pure) brake fluid.
7. In the same way, change the brake fluid in the left front brake mechanism, and then in the second circuit (first in the left rear brake, then in the right front). Press the brake pedal several times. In this case, the stroke and resistance of the pedal must be constant with each press. If these conditions are not met, then air has entered the brake system and it must be pumped (see subsection 3.27.).
8. After changing the brake fluid, be sure to put on the protective caps on the air release valves.
9. Add brake fluid to a level of 4–5 mm from the lower edge of the reservoir filler neck. Close the tank lid.
10. Check the operation of the low brake fluid level sensor installed in the reservoir cap. To do this, turn on the ignition and press the stem on the tank cover - the control lamp in the instrument cluster should light up (see subsection 1.11.).