- metal pipelines should not have nicks, deep scratches, abrasions, active corrosion centers and should be located with a gap from parts that can damage them;
- brake hoses should not have any cracks on the outer casing visible to the naked eye or signs of abrasion; they must not come into contact with mineral oils and lubricants that dissolve rubber; by pressing hard on the brake pedal, check whether there are any swellings on the hoses, indicating a malfunction;
- all pipeline fastening brackets must be intact and well tightened; loosening of fastenings or destruction of brackets leads to vibration of pipelines, causing their breakdown;
- no leakage of fluid from the connections of the master cylinder with the tank and from the fittings is allowed; if necessary, replace the tank bushings and tighten the nuts without deforming the pipelines.
The detected faults are eliminated by replacing the damaged parts with new ones. Flexible hoses, regardless of their condition, are replaced with new ones after 125,000 km of mileage or after 5 years of vehicle operation to prevent sudden ruptures due to aging.
[The information is published on the website: vazbook.ru]