my BMW X5 G05 (2019-2024) has a strong vibration when braking, what is it

Solution

1. Preparation

• Gather all tools and parts required for the repair.
• Ensure the vehicle is parked on a level surface and the parking brake is engaged.

2. Lift Vehicle

• Use a hydraulic jack to lift the front of the vehicle and secure with jack stands.
• Remove the front wheels using a socket set.

3. Inspect and Replace Brake Rotors

• Inspect Rotors:
  • Measure rotor thickness with a micrometer; if below minimum specification, replace.
  • Check for signs of warping using a runout gauge.
• Replace Rotors:
  • Remove caliper bolts with a socket set and carefully hang the caliper using a bungee cord.
  • Remove the old rotor.
  • Clean the hub surface with a wire brush to ensure proper seating of the new rotor.
  • Install the new rotor and reattach the caliper, tightening the bolts to manufacturer's torque specifications (usually around 100 Nm).

4. Inspect and Replace Brake Pads

• Check brake pads for wear; if less than 3 mm, replace.
• Remove the caliper bracket if necessary, and slide out the old pads.
• Apply brake grease to the back of the new pads to prevent squeaking.
• Install new pads and reassemble the caliper.

5. Check Suspension and Wheel Bearings

• Inspect suspension components (control arms, bushings, etc.) for any signs of damage or looseness.
• Check wheel bearings for play by rocking the wheel; replace if necessary.

6. Perform Wheel Alignment

• Utilize a wheel alignment tool to check and adjust alignment settings to manufacturer's specifications.

Tools Required:

• Hydraulic jack
• Jack stands
• Socket set
• Micrometer
• Runout gauge
• Wheel alignment tool
• Torque wrench
• Brake grease

Parts Required:

• Brake rotors
• Brake pads
• Wheel bearings (if needed)

Estimated Repair Time: 3-5 hours

Safety Warnings:

• Always disconnect the battery before working on the vehicle's electrical systems.
• Allow the brake components to cool before handling to prevent burns.