How do you replace headlight in Mazda 3 2008?

To replace the headlight in a 2008 Mazda 3, first, open the hood and locate the headlight assembly. Disconnect the electrical connector by pressing the tab and pulling it off, then remove the rubber cover. Unscrew the retaining ring or clips, depending on the type of bulb, and carefully pull the old bulb out. Insert the new bulb without touching the glass, secure it with the ring or clips, replace the rubber cover, and reconnect the electrical connector.