Recommendation: Since on cars with a manual transmission the hydraulic clutch drive and the hydraulic brake drive are fed from the same reservoir, when replacing the fluid in the hydraulic brake drive, we recommend replacing the brake; fluid and in the clutch release drive (see "Clutch release hydraulic drive - bleeding").
To complete the work you will need:
- rubber bulb or syringe;
- transparent vinyl tube with an internal diameter of 4-5 mm;
- special or open-end wrenches for 9 mm and 11 mm;
- brake fluid drain container;
- fresh brake fluid as recommended by the manufacturer (see "Reference data");
- inspection ditch or overpass (desirable).
We perform the work with an assistant.
Sequence of execution
1. Prepare the car for work (see "Preparing the car for maintenance and repair").
2. Remove the master brake cylinder reservoir cover.
3. Using a syringe or rubber bulb, remove the working fluid from the master brake cylinder reservoir.
4. Pour new fluid into the tank up to the top edge of the tank.
Warning! To prevent air from entering the hydraulic drive of the brake system, when replacing the brake fluid, make sure that its level in the reservoir does not fall below the MIN mark.
5. Bleed the hydraulic drive system circuits (see "Hydraulic brake drive - bleeding"). We bleed each brake mechanism before the new one starts to come out (lighter) brake fluid from the nipple, periodically checking the fluid level in the reservoir.
6. After replacing the fluid in both circuits, check the operation of the hydraulic drive and bring the fluid level in the master brake cylinder reservoir to normal (see "Checking the levels of technical fluids").
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