my BMW X5 G05 (2019-2024) dashboard lights keep flickering, why

Solution

1. Preparation

• Tools Required: OBD-II scanner, multimeter, socket set, flashlight
• Disconnect the negative battery terminal to prevent electrical shock.

2. Battery and Connections Inspection

• Sub-steps:
  1. Remove the negative battery terminal using a socket wrench.
  2. Clean the battery terminals and cable ends with a wire brush.
  3. Reconnect the battery terminal securely and ensure there is no corrosion.

3. Alternator Output Test

• Sub-steps:
  1. Reconnect the battery and start the engine.
  2. Use a multimeter to measure the voltage at the battery terminals. It should read between 13.7 - 14.7 volts with the engine running.
  3. If the voltage is outside this range, consider testing or replacing the alternator.

4. Fuse Inspection

• Sub-steps:
  1. Locate the fuse box (refer to the owner’s manual for location).
  2. Remove fuses related to the dashboard and electronic systems, inspecting for any blown fuses.
  3. Replace any blown fuses with the appropriate amperage.

5. Wiring and Ground Connection Check

• Sub-steps:
  1. Visually inspect wiring harnesses for frayed insulation or breaks.
  2. Tighten and clean any ground connections found under the hood and in the cabin.
  3. Repair or replace damaged wires as necessary.