Breather Screw / Valve - 0086 QUICK BRAKE

The screw is a part of hydraulic brakes. The function of the element is to pump the hydraulics through the brake bleeder (pressure is restored) and air out (remove air bubbles).

1. 3 (E21)
2. 3 Saloon (E21)
3. 3 (E30)
4. 3 Saloon (E30)
5. 3 Touring (E30)
6. 3 (E36)
7. 3 Saloon (E36)
8. 3 Coupe (E36)
9. GTV (116_)
10. 75 (162B_)
11. 75 Saloon (162B_)
12. 90 (162_)
13. ALFETTA (116_)
14. ALFETTA Saloon (116_)
15. GIULIETTA (116_)
16. GIULIETTA Saloon (116_)
17. ALFETTA GT (116_)
18. GIULIA (105_)
19. GIULIA Saloon (105_)
20. 5 (E28)
21. See more in applications

The design of brake caliper screw

If we are talking about this part, it is also important to say a word about main malfunctions:

1. if the screw is damaged, if the plug is worn out, the part rusts and leaks;
2. if the caliper body is deformed as a result of an impact or a sharp collision with an obstacle;
3. screws for the brake system often break during non-professional (“garage”) pumping.

The part must be checked regularly for leaks and for obvious signs of rust. To pump and bleed hydraulic brakes, it is better to contact a car service.

Structurally, the QUICK BRAKE brand Breather Screw/Valve, brake caliper is located in the upper part of the caliper chamber filled with brake fluid. When pumping with a pedal, the air in the system, in search of an outlet, rises to the top of the chamber. The mechanic unscrews the screw a little, allowing the air from the line to suffer a little. The procedure is carried out until the liquid completely displaces the gas.