why does my BMW X5 F15 (2014-2019) vibrate when I hit the brakes

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is on a flat surface and set the parking brake.
• Disconnect the battery to prevent any electrical issues during work.

2. Remove Wheel Assembly

• Use a jack to lift the vehicle and secure it with jack stands.
• Remove the lug nuts using a lug wrench and take off the wheel.

3. Inspect and Replace Brake Components

• Inspect Brake Rotors:

  • Remove the caliper by unbolting it from the bracket (usually requires a socket set).
  • Slide the caliper off the rotor and support it using a bungee cord.
  • Measure the rotor thickness with a micrometer. If below minimum specification or warped, replace the rotor.

• Replace Brake Pads:

  • Remove the old brake pads from the caliper bracket.
  • Clean the caliper bracket and apply brake grease to the pad backing.
  • Install new brake pads ensuring proper orientation.

4. Reassemble Components

• Reattach the caliper over the new pads and tighten the bolts to manufacturer specifications (typically around 30-40 Nm).
• Reinstall the wheel, hand-tighten the lug nuts, and lower the vehicle.
• Torque the lug nuts to the specified torque value (usually around 120 Nm).

5. Final Checks

• Reconnect the battery.
• Pump the brake pedal to ensure proper brake feel before driving the vehicle.