How do change rear light unit on Skoda fabia?

To change the rear light unit on a Skoda Fabia, first, open the boot and locate the access panel on the side of the light unit. Remove the panel by unscrewing or unclipping it, then disconnect the wiring harness from the rear light assembly. Unscrew the light unit from its housing and carefully pull it out. Replace it with the new unit, reconnect the wiring, and secure it back in place before replacing the access panel.