Attention! Brake fluid used in brake and clutch drives is hygroscopic. It absorbs moisture from the air through the ventilation hole in the tank cap and gradually loses its working qualities. Therefore, it is necessary to replace the brake fluid with fresh fluid that has been stored without contact with the environment. Brake fluid is dangerous for the eyes, it can also damage the painted surface of the car body, so you should take the necessary measures when handling it.
The procedure for replacing brake fluid is the same as for bleeding the brake system (see section "Brake system").
The brake fluid to be replaced should be pumped out of the reserve tank using a rubber bulb. The remaining brake fluid will be replaced during the procedure.
For the sequence and order of work, see the subsection "Bleeding the brake system". When replacing brake fluid, make sure that the reserve tank does not dry out completely, otherwise air will enter the system. The signal for the end of the fluid replacement for each wheel is the flow of clean, unclouded fluid from the bleeding nipple.
After completing the operation, make sure that all the fittings on the brake mechanisms are tightened and that protective caps are installed on them. Wipe off traces of brake fluid with a clean rag and bring the fluid level in the reserve tank to the "MAX" mark. Check the operation of the brakes by running.
Warning! Coolant (antifreeze) has an irritating effect on the skin and mucous membranes, so if it gets on your body, wash it off with plenty of water. In addition, antifreeze destroys the paintwork of the car body. Do not leave antifreeze in an open container to avoid accidents.