Replacing the rear brakes on a 2016 Mazda CX-5 equipped with an electronic parking brake requires a slightly different approach than models without this feature. This guide will walk you through the process, addressing common concerns and providing valuable tips for a successful repair. Whether you're a seasoned DIY mechanic or a novice tackling your first brake job, this detailed explanation will empower you to complete this task safely and efficiently.
Understanding the Electronic Parking Brake System
The electronic parking brake (EPB) system in your 2016 Mazda CX-5 is integrated with the braking system's electronic control unit (ECU). This means simply disconnecting the brake calipers won't suffice; you'll need to properly engage and disengage the EPB system using diagnostic tools or specific procedures to avoid damaging the system. Ignoring this crucial step can lead to error codes and potentially expensive repairs.
Tools and Materials You'll Need
Before you begin, gather the necessary tools and materials. This will streamline the process and prevent interruptions:
- New Rear Brake Pads: Ensure you purchase the correct pads for your 2016 Mazda CX-5. Checking your vehicle's identification number (VIN) can help avoid compatibility issues.
- New Rear Brake Rotors (if necessary): Inspect the rotors for excessive wear or scoring. If damaged, replace them for optimal braking performance and safety.
- Jack and Jack Stands: Safety first! Always use jack stands to securely support your vehicle.
- Wheel Wrench: To remove and reinstall the wheels.
- Socket Wrench Set: With appropriate sizes for the caliper bolts and other fasteners.
- C-Clamp (or equivalent): To compress the caliper pistons.
- Brake Caliper Piston Compression Tool (optional but recommended): A specialized tool minimizes the risk of damage to the caliper piston seal.
- Penetrating Oil: To help loosen any stuck bolts.
- Wrench for EPB Disengagement (if applicable): Some methods involve using a specific wrench to mechanically disengage the parking brake. Consult your repair manual.
- OBD-II Scanner (Highly Recommended): An OBD-II scanner allows you to properly disengage the electronic parking brake and clear any error codes that may arise during the process. This is the safest and most reliable method.
- Repair Manual: A service manual specific to your 2016 Mazda CX-5 is invaluable. It provides detailed diagrams, torque specifications, and step-by-step instructions.
Step-by-Step Brake Replacement Process
1. Prepare Your Vehicle:
- Park on a level surface, engage the emergency brake (besides the electronic one), and chock the front wheels.
- Consult your owner's manual for the correct jack points. Safely raise the vehicle and secure it with jack stands.
- Remove the rear wheels.
2. Disengage the Electronic Parking Brake:
- Using an OBD-II Scanner: This is the preferred method. Connect the scanner, locate the EPB function, and follow the prompts to disengage the parking brake. This will usually involve releasing the brake electronically.
- Using a Specialized Wrench (if necessary): Some repair manuals might suggest a mechanical disengagement method. Proceed only if this is clearly indicated in your vehicle's repair manual.
3. Remove the Brake Calipers:
- Once the EPB is disengaged, carefully remove the caliper bolts.
- Gently remove the caliper from the rotor, supporting its weight to prevent the brake line from stretching. Hang the caliper securely using a wire or bungee cord to avoid damaging the brake line.
4. Compress the Caliper Pistons:
- Using a C-clamp or a specialized piston compression tool, carefully compress the caliper pistons. Turn the pistons slowly and evenly to avoid damaging the seals. Add brake fluid to the master cylinder reservoir as needed to accommodate the returning fluid.
5. Remove and Replace the Brake Pads:
- Remove the old brake pads. Inspect the condition of the brake pad retaining clips and replace if necessary.
- Install the new brake pads, ensuring they slide smoothly into place.
6. Install the Brake Calipers and Rotors (if replaced):
- If you're replacing the rotors, carefully install the new rotors.
- Reinstall the brake calipers, ensuring the bolts are tightened to the manufacturer's specified torque.
7. Reengage the Electronic Parking Brake:
- After reinstalling the wheels, use your OBD-II scanner to re-engage the electronic parking brake. The scanner will confirm that the system is functioning correctly. Clear any error codes.
8. Test Drive and Final Checks:
- Lower the vehicle and carefully test drive it to ensure the brakes are functioning correctly. Pay attention to the stopping distance and for any unusual noises or vibrations.
Frequently Asked Questions (PAA)
How much does it cost to replace rear brakes on a 2016 Mazda CX-5 with an electronic parking brake? The cost can vary widely depending on your location, labor rates, and whether you need new rotors. Expect to pay anywhere from $200-$500 for parts and labor if you have a shop perform the service. Doing it yourself will significantly reduce the cost.
Can I replace the rear brake pads on a 2016 Mazda CX-5 with an electronic parking brake myself? Yes, but it requires attention to detail and the proper tools. Mishandling the EPB system can lead to damage. A basic understanding of automotive mechanics is recommended.
**What are the signs that my rear brakes need replacing? ** Warning signs include squealing or grinding noises, a spongy brake pedal, increased stopping distance, a vibrating brake pedal, and a illuminated brake warning light. Regular brake inspections are highly recommended.
Do I need special tools to replace the rear brakes on a 2016 Mazda CX-5 with an electronic parking brake? Yes, an OBD-II scanner is highly recommended for safely disengaging and re-engaging the EPB system. A caliper piston compression tool is also recommended to prevent damage.
This guide provides a comprehensive overview. Always consult your vehicle's repair manual for detailed instructions and torque specifications specific to your 2016 Mazda CX-5. Remember, safety is paramount when working on your brakes. If you're unsure about any step, seek professional assistance.
