Brake System Bleeding
Brake System Bleeding
ABS Hydraulic Control Unit (HCU) Bleeding
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.
CAUTION: Brake fluid is harmful to painted and plastic surfaces. If brake fluid is spilled onto a painted or plastic surface, immediately wash it with water.
NOTE: When any part of the hydraulic system has been disconnected for repair or installation of new components, air can get into the system and cause spongy brake pedal action. This requires bleeding of the hydraulic system, including the hydraulic control unit (HCU) after it has been correctly connected.
NOTE: If the HCU or any component upstream of the HCU is installed new, carry out the brake system bleed procedure first without the scan tool, followed by the brake system bleed procedure using the scan tool.
NOTE: This procedure is only required when a new HCU is installed.
1. Connect the scan tool and follow the ABS bleed instructions.
2. Follow the manual bleeding or pressure bleeding procedure steps to bleed the system.
Manual Bleeding Method
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.
CAUTION: Brake fluid is harmful to painted and plastic surfaces. If brake fluid is spilled onto a painted or plastic surface, immediately wash it with water.
NOTE: When any part of the hydraulic system has been disconnected for repair or installation of new components, air can get into the system and cause spongy brake pedal action. This requires bleeding of the hydraulic system, including the HCU after it has been correctly connected.
1. Clean all the dirt from around the brake fluid reservoir cap and remove the cap. Fill the brake master cylinder reservoir with clean, specified brake fluid.
2. Remove the RR wheel cylinder bleeder screw cap and place a box-end wrench on the bleeder screw. Attach a rubber drain hose to the RR wheel cylinder bleeder screw and submerge the free end of the hose in a container partially filled with clean, specified brake fluid.
3. Have an assistant pump and then hold firm pressure on the brake pedal.
4. Loosen the RR wheel cylinder bleeder screw until a stream of brake fluid comes out. While an assistant maintains pressure on the brake pedal, tighten the RR wheel cylinder bleeder screw.
^ Repeat until clear, bubble-free fluid comes out.
^ Refill the brake master cylinder reservoir as necessary.
5. Tighten the RR wheel cylinder bleeder screw to 8 Nm (71 lb-inch), remove the rubber hose and install the bleeder screw cap.
6. Repeat Steps 2-5 for the LR wheel cylinder bleeder screw.
7. Remove the RF brake caliper bleeder cap and place a box-end wrench on the bleeder screw. Attach a rubber drain hose to the RF brake caliper bleeder screw and submerge the free end of the hose in a container partially filled with clean, specified brake fluid.
8. Have an assistant pump and then hold firm pressure on the brake pedal.
9. Loosen the RF brake caliper bleeder screw until a stream of brake fluid comes out. While the assistant maintains pressure on the brake pedal, tighten the RF brake caliper bleeder screw.
^ Repeat until clear, bubble-free fluid comes out.
^ Refill the brake master cylinder reservoir as necessary.
10. Tighten the RF brake caliper bleeder screw to 15 Nm (11 lb-ft), remove the rubber hose and install the bleeder screw cap.
11. Repeat Steps 7 through 10 for the LF brake caliper bleeder screw.
12. Apply brakes several times to verify correct brake operation.
Pressure Bleeding Method
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.
CAUTION: Brake fluid is harmful to painted and plastic surfaces. If brake fluid is spilled onto a painted or plastic surface, immediately wash it with water.
NOTE: When any part of the hydraulic system has been disconnected for repair or installation of new components, air can get into the system and cause spongy brake pedal action. This requires bleeding of the hydraulic system, including the hydraulic control unit (HCU) after it has been correctly connected.
1. Clean all dirt from and remove the brake master cylinder filler cap and fill the brake master cylinder reservoir with clean, specified brake fluid.
2. NOTE: Master cylinder pressure bleeder adapter tools are available from various manufacturers of pressure bleeding equipment. Follow the instructions of the manufacturer when installing the adapter.
Install the bleeder adapter to the brake master cylinder reservoir, and attach the bleeder tank hose to the fitting on the adapter.
3. NOTE: Bleed the longest line first. Make sure the bleeder tank contains enough specified brake fluid to complete the bleeding operation.
Remove the RR wheel cylinder bleeder screw cap and place a box-end wrench on the bleeder screw. Attach a rubber drain hose to the RR wheel cylinder bleeder screw and submerge the free end of the hose in a container partially filled with clean, specified brake fluid.
4. Open the valve on the bleeder tank.
5. Loosen the RR wheel cylinder bleeder screw. Leave open until clear, bubble-free brake fluid flows, then tighten the RR wheel cylinder bleeder screw to 8 Nm (71 lb-inch) and remove the rubber hose.
6. Continue bleeding the rest of the system, going in order from the LR wheel cylinder bleeder screw to the RF disc brake caliper bleeder screw, ending with the LF disc brake caliper bleeder screw.
^ Tighten the brake caliper bleeder screws to 15 Nm (11 lb-ft).
7. Close the bleeder tank valve. Remove the tank hose from the adapter and remove the adapter. Fill the reservoir with clean, specified brake fluid and install the reservoir cap.
8. Apply brakes several times to verify correct brake operation.