How do you change the mirror indicator on a Citroen relay?

To change the mirror indicator on a Citroën Relay, first, ensure the vehicle is turned off and disconnect the battery for safety. Remove the mirror cover by gently prying it off with a flat tool, taking care not to damage the clips. Once the cover is off, disconnect the old indicator bulb or LED by twisting or pulling it out, and replace it with a new one. Finally, reassemble the mirror cover and reconnect the battery.