You might be asking how to change the whole headlight or one of the bulbs inside the headlight. To change the headlight completely you need screw drivers(flat&star) Open the bonnet locate and unscrew the white restraint holding the trafficator attached to the headlight you want to change. Remove this and unplug the electric cable connected to the trafficator, side the trafficator out toward the front of the car. Locate the electric cable/socket connected to the headlight and remove it from the light. Locate the screws holding the light in place, there are about 3 or 4 Note that you might have to unscrew the small body part just below the light. Once the screws are removed the light can then be taken out toward the front of the car. To change the bulbs is a much simpler process Locate the light Observe the rear of the light,it has a plastic covering which can be openned and removed by pulling up-wards the 2 metal restraining clips located on either side of the rear of the light. Once openned, you will see the bulbs, 2 large and 1 small. Each is restrained by a metal cilp and connected by cable to a socket inside the light. Depending on the one to be changed observe carefully and replace the bulb.