what to do if my BMW X5 G05 (2019-2024) transmission jerks when shifting?

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative battery terminal to ensure safety during repairs.
• Raise the vehicle and secure it on jack stands.

2. Check and Replace Transmission Fluid

• Sub-steps:

  1. Locate the transmission dipstick or drain plug.
  2. Remove the dipstick or drain plug, allowing old fluid to drain into a container.
  3. Inspect the fluid for color and odor; it should be bright red and should not smell burnt.
  4. Replace with new transmission fluid (refer to owner’s manual for specifications).
  5. Reinstall the dipstick or drain plug and ensure it is secure.

• Tools Required:

  • Transmission fluid pump
  • Fluid catch pan
  • Socket set

3. Inspect and Repair Wiring Connections

• Sub-steps:

  1. Locate the TCM and remove any covers if necessary.
  2. Disconnect the wiring harness from the TCM.
  3. Inspect the pins for corrosion or damage; clean or repair as needed.
  4. Reconnect the wiring harness securely.

• Tools Required:

  • Multimeter
  • Cleaning solution for electrical contacts

4. Test Drive and Adjust Transmission Settings

• Sub-steps:

  1. After reassembly, reconnect the battery terminal.
  2. Start the vehicle and allow it to reach operating temperature.
  3. Perform a test drive to assess shifting performance.
  4. If necessary, use a diagnostic scanner to reset the transmission adaptations or update software.

• Tools Required:

  • OBD-II scanner