Caution! Brake fluid can cause eye damage and paint damage. Therefore, when handling it, especially when refueling it, be extremely careful. Do not use fluid from a container that has been open for some time, as brake fluid is highly hygroscopic (the ability to absorb moisture from the air). Excess moisture can cause dangerous loss of braking performance.
Tip: "Old" brake fluid is often much darker than fresh, making them easy to distinguish.
1. The procedure is the same as the brake system bleeding procedure described in Chapter 9, except that you must first empty the brake system reservoir using a clean rubber bulb or similar device and remove the old fluid while bleeding air from part of the circuit.
2. Working as described in chapter 9, open the first air bleed screw in turn and smoothly operate the brake pedal until almost all the "old" fluid comes out of the brake hydraulic reservoir.
3. Fill with new fluid up to the MAX mark and continue to operate the pedal until only new fluid remains in the reservoir and new fluid begins to flow out through the air bleed screw. Tighten the screw and fill the tank to the MAX mark.
4. Repeat all steps with the remaining air bleed screws one by one, ensuring that new fluid flows through all the screws. Be careful—the brake fluid level in the reservoir must be kept above the MIN mark at all times. Otherwise, air may enter the system, significantly increasing the complexity of the procedure.
5. Once the procedure is complete, recheck the fluid level in the reservoir, tighten all air bleed screws and install the dust caps on them.
Material copied from the resource Peugeotbook.ru
6. Before driving on the road, thoroughly wash off all traces of spilled fluid and check the operation of the brakes.