2014 Flex Workshop Manual

SECTION 206-00: Brake System — General Information	2014 Flex Workshop Manual
GENERAL PROCEDURES	Procedure revision date: 05/02/2013

Component Bleeding

Material
Item	Specification
Motorcraft® DOT 4 LV High Performance Motor Vehicle Brake Fluid PM-20	WSS-M6C65-A2 and ISO 4925 Class 6

Master Cylinder

WARNING: Do not use any fluid other than clean brake fluid meeting manufacturer's specification. Additionally, do not use brake fluid that has been previously drained. Following these instructions will help prevent system contamination, brake component damage and the risk of serious personal injury.

WARNING: Carefully read cautionary information on product label. For emergency medical information seek medical advice. In the USA or Canada on Ford/Motorcraft products call: 1-800-959-3673. For additional information, consult the product Material Safety Data Sheet (MSDS) if available. Failure to follow these instructions may result in serious personal injury.

WARNING: Do not allow the brake master cylinder to run dry during the bleeding operation. Master cylinder may be damaged if operated without fluid, resulting in degraded braking performance. Failure to follow this instruction may result in serious personal injury.

NOTICE: Do not spill brake fluid on painted or plastic surfaces or damage to the surface may occur. If brake fluid is spilled onto a painted or plastic surface, immediately wash the surface with water.

NOTE: When a new brake master cylinder has been installed or the system has been emptied, or partially emptied, it should be primed to prevent air from entering the system.

Disconnect the brake tubes from the master cylinder.

Install short brake tubes onto the primary and secondary ports with the ends submerged in the brake master cylinder reservoir.

Fill the brake master cylinder reservoir with clean, specified brake fluid.

Have an assistant pump the brake pedal until clear fluid flows from the brake tubes without air bubbles.

Remove the short brake tubes, and install the master cylinder brake tubes.

Bleed the brake system. For additional information, refer to Brake System Bleeding in this section.

Brake Caliper

NOTE: It is not necessary to do a complete brake system bleed if only the disc brake caliper was disconnected.
Remove the brake caliper bleeder screw cap and place a box-end wrench on the bleeder screw. Attach a rubber drain hose to the bleeder screw and submerge the free end of the hose in a container partially filled with clean, specified brake fluid.

Have an assistant pump the brake pedal and then hold firm pressure on the brake pedal.

NOTE: Due to the complexity of the fluid path within the rear integral parking brake calipers, it is necessary to press and release the parking brake during the bleed procedure.
Loosen the bleeder screw until a stream of brake fluid comes out. While the assistant maintains pressure on the brake pedal, tighten the bleeder screw.
- If bleeding a rear brake caliper, press and release the parking brake 5 times.
- Repeat until clear, bubble-free fluid comes out.
- Refill the brake master cylinder reservoir as necessary.

Tighten the brake caliper bleeder screw, remove the rubber hose and install the bleeder screw cap.
- Tighten the front brake caliper bleeder screws to specification. For additional information, refer to Specifications in this section.
- Tighten the rear brake caliper bleeder screws to specification. For additional information, refer to Specifications in this section.