Checking the condition and replacing brake lines and hoses

Approximately every six months, after lifting the vehicle, check all flexible hoses connecting the steel pipes of the hydraulic circuits to the wheel brakes for cracks, signs of damage to the containment, signs of fluid leaks, swelling and other damage. Hoses are the critical and most vulnerable part of the brake system, so they must be inspected with the utmost care - use a flashlight and a small mirror. If any doubtful signs are found, the suspected hose must be replaced.

Replacement steel and flexible brake lines can always be purchased at the car manufacturer's authorized service station, as well as in branded car accessories stores.

In no case should you use any tubes as replacements, except for branded ones specially designed for installation in the brake circuit of your car.

1. When installing brake lines, ensure that they are at least 20 mm away from moving or vibrating body, suspension or steering components.

2. Use a special split-head wrench to release the flexible hose fittings from the steel tubing of the hydraulic lines. After releasing the nut, remove the retainer and release the brake hose from the support bracket.






3. To disconnect the brake hose from the caliper, unscrew the hollow bolt of the union connection and discard its old sealing washers - when assembling the washers, they must be replaced without fail.

Sealing washers of the fitting connection



4. Disconnecting the two hoses is done using conventional open-end wrenches. When joining the units, make sure that the hoses are not twisted.

5. Rigid hydraulic line tubes are usually fixed along their entire length in special clamps. When removing the line, make sure that it is released from all clamps. When installing the lines on the car, do not forget to replace the failed clamps.


6. When replacing the brake lines, make sure that the replacement components are exactly the same size as the old sections removed from the car. Never replace steel pipes with copper ones!

7. When installing steel pipes, make sure that they are securely fixed in all provided brackets, clamps and clamps. Do not run pipes too close to moving suspension and steering components.

8. Having finished installing the new sections of hydraulic lines, check the fluid level in the GTZ reservoir. Make appropriate adjustments if necessary. Bleed the brake system (see Section Bleeding the brake system). Before starting the operation of the vehicle, make sure that the brakes are working properly.