Working with the hydraulic brake system (VW Golf 1)

Below are the work processes that involve contact with brake fluid. Therefore, we provide some safety instructions.

Brake fluid is poisonous and should not be used in the mouth or on open wounds.

Brake fluid has a harmful effect on painted surfaces. For this reason, do not place rags soaked in brake fluid or tools with residues of this fluid on the body.

When disconnecting a brake hose or brake line, the reservoir gradually empties. This can be prevented. Before loosening the threaded connection, loosen the bleeder valve in the corresponding brake circuit. Attach the bleeder hose and keep it in a container with brake fluid. Now fully depress the brake pedal and fix it in this position using a suitable wooden strip. This closes the inlet openings in the brake master cylinder: brake fluid can no longer flow out.

To loosen and tighten the brake pipe nuts, you will need a special 10x11 key (for example, N 05 202) for brake pipes. For brake hoses, an open-end spanner SW 14 is sufficient.

(The article is published on this resource: www.VWmanual.ru)

After completing all work with the brake system, the entire system should be bled, see further. It is often enough to pump only the circuit where the work was performed.