OEM 2009 Mercury Mariner Brake Master Cylinder

2009 Mercury Mariner Brake Master Cylinder Parts Questions & Experts Answers

• Q: How to Properly Bleed the Brake Master Cylinder to Ensure Optimal Performance on 2009 Mercury Mariner?

  A: Clean brake fluid must be chosen according to manufacturer specifications during bleeding procedures and previously drained fluid needs to be excluded because it can cause damage and contamination. The brake master cylinder should remain filled with fluid during bleeding because empty cavities may reduce your brake system's performance quality. Water must be used right away to wash off brake fluid exposed to painted or plastic items. The brake system needs priming through proper procedure after a new brake master cylinder installation or when system drains to avoid air entry. The procedure for hybrid vehicles includes disconnecting brake master cylinder brake tubes before installing short tubes to both primary and secondary ports at the brake master cylinder reservoir openings. Add clean brake fluid to the reservoir and prevent any intermittent ignition key use when performing the bleed operation. The assistant needs to activate the brake pedal by pumping it until the fluid streams out through both tubes in a clear manner while avoiding any air bubble formation. The brake outlet tubes should be fitted after short tubes removal while following the specified fitting procedures. A rubber drain hose should be used to attach to the brake master cylinder bleeder screw of non-hybrid vehicles while the hose end is submerged inside the reservoir alongside clean brake fluid. An assistant should press the brake pedal until pure fluid emerges from the hose while bubbles remain absent. Thereafter strengthen the bleeder screw according to specifications before applying the bleeder screw cap. Users should finish the procedure by bleeding the entire brake system.