SEQUENCE OF WORKS
1. To identify leaks in the hydraulic drive of the brake system, it is necessary to ensure that the vehicle is parked on a dry floor or platform.
2. Check the hose and pipe connections, brake calipers and protective covers with the rear wheel brake cylinders located behind them. Pay attention to dark and damp spots.
3. Check the brake hoses of the hydraulic drive. The brake hoses should not be wet, bulging, or frayed. If so, replace them.
4. Clean the hydraulic hoses and lines with detergent (diluted in cold water). Brake lines are coated with plastic to protect against corrosion. If this layer is damaged, corrosion can occur. Therefore, never clean the lines with a screwdriver, sandpaper or wire brush, use only a cleaning agent. If the protective layer is damaged, a thin layer of anti-corrosion primer must be applied. Pinched lines or those with traces of corrosion must be replaced immediately.
5. Check that the bleeder nipples on all brake calipers have protective caps.
6. Check the brake fluid pressure regularly in spring and autumn. Press the brake pedal with all your might and do not release it for 1 minute, but it should not go down any further. If this happens, the sealing rings in the master cylinder are damaged. Due to the leaky sealing rings, the brake fluid level in the reservoir does not go down, and the pressurized fluid passes the piston in the master cylinder to the side where there is no pressure. Leaky areas of the brake caliper pistons can be identified by dark spots around the sealing rings. If you doubt the tightness of the brake system and cannot determine the location of the damage yourself, contact a service station.