According to the manufacturer's recommendation, the brake fluid should be replaced after 6 years of operation or 90 thousand km of mileage, whichever comes first.
Recommendations. Brake fluid is very hygroscopic and absorbs moisture from the air, which in addition to causing corrosion of brake system parts lowers the boiling point of the fluid itself, which can lead to brake failure with frequent intensive braking. Therefore, we recommend replacing the brake fluid at least once every two years.
Check the tightness by external inspection:
- from above, from under the hood;
- from below the car (on a lift or inspection pit);
- from the sides of the car with the wheels removed.
Note: When inspecting the hydraulic drive part that works under pressure, have an assistant press the brake pedal four or five times (in order to create pressure in the hydraulic drive) and hold it down until you have inspected the hydraulic drive. Inspecting the hydraulic drive without pressure is acceptable, but less effective.
Note. If you find any leaks in the connections, tighten the clamps, plugs, and nuts. Replace any hoses or pipes with mechanical damage. If the working cylinders are leaky, repair or replace them.
You will need: special keys for pipeline fastening nuts or keys "8", "11", "14".
This is what a special key for pipeline fastening nuts looks like.
1. Inspect the master cylinder reservoir...
2. ...and connecting the pipelines to the master cylinder.
3. Check for fluid leaks from the brake pipe connections to the hoses.
4. Carefully inspect the brake hoses and their connections to the brake mechanisms. The hoses should not have cracks, tears or abrasions. Press the brake pedal all the way down: if there are any bulges on the hose, then the threads of the hose braiding have broken and it must be replaced.
5. Inspect the hose connections to the working cylinders, the air release valves of the front brake mechanisms...
6. ...and rear wheels.
7. Check the fastening of the pipelines in the holders (the pipelines are laid on the right side of the bottom). Loosening or breaking of the holders leads to vibration and, as a result, to failure of the pipelines.
8. Check the condition of the pipes and hoses, as well as their connections on the rear suspension beam, the fastening of the pipes to the car body and to the rear suspension beam, the connection of the pipes to the brake force regulator in the rear brake hydraulic drive.