Checking the condition of the hydraulic drive (VAZ-21061)

The condition of the hydraulic drive is checked visually. Brake fluid leakage is not allowed.

Metal pipelines must not have dents or cracks, they must be securely fastened away from sharp edges that can damage them. All clamps that fix the pipelines must be securely fastened, as vibration can cause pipeline breakage.

All fittings must be securely tightened - leakage of brake fluid through them is not allowed.

Brake hoses should not have cracks on the outer shell and should not come into contact with liquids that dissolve rubber. It is better to check the condition of the hoses with an assistant, who should press the brake pedal hard and hold it during the inspection. Bulges on the hoses are not allowed. Regardless of the external condition, the hoses must be replaced after 100 thousand km of run or five years of vehicle operation.

Brake fluid is usually replaced after five years of operation, as it is highly hygroscopic (easily absorbs moisture from the air). But, based on practical experience, we recommend replacing the fluid after two years. Water in the brake fluid increases the likelihood of "souring" of the working cylinders from corrosion and lowers its boiling point.

(The material is posted on the online resource: VAZbook.ru)