my BMW X5 G05 (2019-2024) feels like it’s losing traction, what could be wrong?

Solution

1. Preparation

• Gather necessary tools and parts.
• Park the vehicle on a level surface and engage the parking brake.
• Disconnect the negative battery terminal to ensure safety.

2. Tire Inspection and Replacement

• Inspect Tires:
  • Check each tire for uneven wear, proper tread depth (minimum 2/32"), and pressure (recommended PSI).
• Replace Tires (if needed):
  • Use a jack to lift the vehicle and secure it with jack stands.
  • Remove the lug nuts using a socket set and take off the tires.
  • Install new tires, ensuring they are correctly seated on the rim.
  • Torque the lug nuts to manufacturer specifications (typically around 80-100 ft-lbs).

3. Traction Control System Check

• Inspect Sensors:
  • Locate the wheel speed sensors and visually inspect for damage or disconnection.
  • Use a multimeter to test the sensor resistance; replace if faulty.
• Reset Traction Control:
  • Reconnect the battery and perform a reset of the traction control system using the OBD-II scanner.

4. Drivetrain and Suspension Inspection

• Examine Drivetrain:
  • Inspect the transfer case and differential for leaks or unusual noises during operation.
  • Test fluid levels and condition; replace if contaminated.
• Suspension Components:
  • Check control arms, bushings, and struts for wear or damage. Replace any damaged parts.