Каждый 2-ой владелец не знает, как менять задние колодки с "электро Ручником"/Эл.стояночный тормоз/

Introduction

This tutorial will guide you through the process of changing rear brake pads and discs on vehicles equipped with an electric handbrake. Many car owners are unaware of the specific steps involved, particularly how to retract the brake caliper piston. This guide will outline three methods to do so effectively, ensuring your brake maintenance is safe and efficient.

Step 1: Gather Necessary Tools and Materials

Before starting the brake pad replacement, ensure you have the following tools and parts ready:

• New brake discs and pads (e.g., Otto Zimmermann 530.2468.20 for discs and 22158.145.1 for pads)
• Brake caliper tool for piston retraction
• Socket set and wrench
• Screwdriver
• Brake cleaner
• Torque wrench
• Jack and jack stands

Practical Tips

• Always work on a flat surface and use wheel chocks to prevent the vehicle from rolling.
• Wear safety gloves and goggles to protect yourself.

Step 2: Remove the Wheel

• Loosen the lug nuts on the rear wheel slightly while the car is still on the ground.
• Use a jack to lift the vehicle and secure it with jack stands.
• Fully remove the lug nuts and take off the wheel.

Step 3: Access the Brake Caliper

• Locate the brake caliper, which is typically held in place by two bolts.
• Remove the caliper bolts using the appropriate socket.
• Carefully slide the caliper off the brake disc. Support the caliper to avoid stressing the brake line.

Step 4: Retract the Brake Caliper Piston

This step is crucial when working with an electric handbrake, as the piston must be retracted properly to fit new pads.

Method 1: Using an OBD-II Scanner

1. Connect an OBD-II scanner to your vehicle.
2. Navigate to the brake service mode to retract the caliper piston electronically.
3. Follow the scanner's instructions to complete the retraction.

Method 2: Manual Tool Method

1. Use a brake caliper tool designed for piston retraction.
2. Insert the tool between the caliper and the piston.
3. Turn the tool to push the piston back into the caliper. Ensure it moves straight back without tilting.

Method 3: Using a Screwdriver

1. Carefully insert a flathead screwdriver between the caliper and piston.
2. Gently pry the piston back while being cautious not to damage any components.

Common Pitfalls to Avoid

• Do not force the piston back as this could damage the caliper.
• Make sure the brake fluid reservoir is not overflowed when pushing the piston back.

Step 5: Replace the Brake Pads and Discs

• Remove the old brake pads from the caliper bracket.
• Remove the retaining clips if necessary.
• Replace with new brake pads, ensuring they are oriented correctly.
• If replacing the discs, remove the old disc and replace it with the new one.

Step 6: Reassemble and Test

• Reattach the brake caliper over the new pads.
• Tighten the caliper bolts to the manufacturer's specifications using a torque wrench.
• Reinstall the wheel and tighten the lug nuts in a criss-cross pattern.
• Lower the vehicle and tighten the lug nuts fully.
• Before driving, pump the brakes a few times to ensure they are functioning correctly.

Conclusion

Changing rear brake pads and discs with an electric handbrake may seem daunting, but by following these steps and using the right tools, it can be done safely and effectively. Always remember to check the brake fluid levels and test your brakes after reassembly. For further maintenance or troubleshooting, consider consulting a professional mechanic.