Here's a general overview. Specific steps and tools may vary slightly depending on your exact Mountaineer's trim level and options. Always consult a repair manual specific to your vehicle's year and model for the most accurate instructions.
Tools you'll likely need:
* Jack and jack stands: Essential for safety. Never work under a vehicle supported only by a jack.
* Wheel chocks: To prevent the vehicle from rolling.
* Lug wrench: To remove the wheel.
* Socket wrench set: Various sizes, likely including 10mm, 13mm, and possibly others.
* C-clamp or caliper compression tool: To compress the caliper piston.
* Pliers or brake caliper pin wrench: To remove caliper pins.
* Wire brush: To clean caliper surfaces.
* Brake cleaner: To clean brake parts.
* New brake pads: Make sure you get the correct pads for your vehicle.
* Torque wrench: To tighten bolts to the manufacturer's specifications.
* Gloves: To protect your hands from grease and dirt.
* Safety glasses: To protect your eyes from debris.
General Steps (Consult your repair manual for precise details):
1. Safety First: Park on a level surface, engage the parking brake, and use wheel chocks.
2. Jack Up and Secure: Safely jack up the vehicle and secure it with jack stands. Remember to place the jack stands on the frame, not on the suspension components.
3. Remove the Wheel: Remove the lug nuts and take off the wheel.
4. Expose the Caliper: You'll likely see the brake caliper clamping the rotor.
5. Compress the Caliper Piston: Use a C-clamp or caliper compression tool to push the piston back into the caliper. This creates space for the new, thicker brake pads. Be careful not to damage the piston seal.
6. Remove the Caliper Pins: Locate and remove the caliper pins that hold the caliper to the caliper bracket. You may need pliers or a special caliper pin wrench.
7. Remove the Old Brake Pads: Carefully remove the old brake pads. Take note of their orientation – sometimes there's a slight difference between the inner and outer pad.
8. Clean the Caliper and Bracket: Use a wire brush and brake cleaner to thoroughly clean the caliper and bracket surfaces. This removes old brake dust and debris.
9. Install the New Brake Pads: Install the new brake pads, ensuring they are properly seated.
10. Reinstall the Caliper: Reinstall the caliper pins and carefully mount the caliper back onto the bracket.
11. Reinstall the Wheel: Reinstall the wheel and tighten the lug nuts to the manufacturer's specified torque. Do not overtighten!
12. Lower the Vehicle: Carefully lower the vehicle to the ground.
13. Test the Brakes: Pump the brake pedal several times to ensure the brakes engage. Test drive the vehicle very cautiously and gently apply the brakes several times to bed in the new pads.
Important Considerations:
* Rotor Inspection: Inspect the brake rotors for wear and scoring. They may need to be resurfaced or replaced if they're excessively worn.
* Brake Fluid: While not directly involved in pad replacement, it's a good idea to check your brake fluid level and condition. If it's low or dirty, you may need to have it flushed and changed.
* Caliper Condition: Inspect the caliper for leaks, sticking pistons, or other damage.
Again, this is a general overview. Improper brake work can be dangerous. If you are uncomfortable performing this repair, take your vehicle to a qualified mechanic. A repair manual specific to your vehicle is highly recommended.
