How do you replace tailight on BMW x5?

To replace the taillight on a BMW X5, first, open the rear hatch and remove the plastic cover or access panel inside the trunk to expose the taillight assembly. Disconnect the electrical connector from the back of the taillight and remove the screws or bolts securing the assembly to the vehicle. Gently pull the taillight out of its housing, replace it with a new one, reattach the screws, and reconnect the electrical connector before replacing the access panel. Finally, test the new taillight to ensure it's functioning properly.