Bleeding air from the hydraulic system [Toyota Carina T170]

Bleeding the hydraulic system is required if the brake line system has been opened or air has entered the system in another way. Before bleeding the system, remove dirt and foreign objects from the bleeding points and the expansion tank cap. If only one wheel brake cylinder or brake caliper has been disconnected, it is sufficient to bleed only the corresponding brake circuit, i.e. front left and rear right or front right and rear left. Otherwise, you can start by bleeding either the rear or front wheels, but the manufacturer recommends the following sequence: rear right, rear left, front right, front left wheel.

• After removing the dust cap, connect a transparent plastic hose to the appropriate air bleed valve. Immerse the other end of the hose in a glass container that is not completely filled with brake fluid.
• Have the assistant press the brake pedal all the way down. Open the air bleed valve half a turn while pressing the pedal. Observe the fluid flowing out of the hose.
• Once the air bubbles stop coming out, all the air has been removed from the system. With the pedal pressed, close the air bleed valve. Slowly release the pedal and do not press it again until the air has been removed through the other valve.
• Perform the same work in the specified sequence with other air bleed valves. Once again, it should be noted that it is necessary to constantly monitor the brake fluid level so that air does not enter the system. Never fill the reservoir with fluid pumped out of the system. Also, do not fill with fluid that has been stored unsealed for a long time.

The official source is on the portal: ToyotaMAN.ru