why does my BMW X5 G05 (2019-2024) make a grinding noise when braking

Solution

1. Preparation

• Gather necessary tools and parts.
• Safely elevate the vehicle using jack stands.
• Remove the wheel to access brake components.

2. Inspect and Replace Brake Pads

• Sub-steps:
  1. Remove the caliper bolts using a socket set (torque specifications may vary; typically 25-35 Nm).
  2. Carefully slide the caliper off the rotor and support it without stressing the brake line.
  3. Inspect the brake pads for wear; if they are below the minimum thickness, replace them.
  4. If replacing, remove the old pads and install new pads, ensuring they are properly seated.

3. Inspect and Replace Brake Rotors (if necessary)

• Sub-steps:
  1. Remove the caliper bracket bolts and set the bracket aside.
  2. Slide the rotor off the hub; if stuck, gently tap with a rubber mallet.
  3. Inspect the rotor for damage; if warped or scored, replace it.
  4. Install the new rotor, ensuring it is properly aligned with the hub.

4. Reassemble Braking System

• Sub-steps:
  1. Reinstall the caliper bracket and torque bolts to the specified value.
  2. Reattach the caliper over the new pads and torque caliper bolts to specifications.
  3. Replace the wheel and torque lug nuts to the manufacturer's specifications (typically 120-140 Nm).