The Honda Civic has a compact engine bay, which makes changing the headlights more difficult than in other vehicles. On most vehicles, you can simply reach behind the headlight housing and replace the headlights; on the Civic, the inner fender wheel well must be removed. The process of changing the headlights is the same on all Civic coupes and sedans, model-years 2006 and newer. To ensure compatibility, only use the recommended replacement bulbs.
Turn the headlight switch off and open the bonnet.
Lift the coolant reservoir out of its holder to access the rear of the headlight housing (driver's side only).
Reach behind the headlight assembly and turn the bulb component counterclockwise to remove it.
Disconnect the electrical connection from the bulb by pressing the plastic tab. Separate the bulb component from the connection and discard the old bulb.
Insert the new bulb into the headlight housing; turn it clockwise to secure it. Connect the electrical connection to the new bulb component.
Place the coolant reservoir back in its mount (driver's side only).
Crank the engine and turn the headlight switch off.
Turn the steering wheel all the way to the right (if replacing the driver's side bulb) or all the way to the left (if replacing the passenger's side bulb). Turn the engine off.
Pry off the two plastic clips from the inner fender wheel well cover using a flathead screwdriver). Pull the plastic panel back to access the headlight bulb.
Press the plastic tab on the electrical connection to disconnect it from the bulb component.
Twist the bulb component counterclockwise to release it from the headlight housing.
Insert the new bulb component into the mount and turn it clockwise to secure it.
Attach the electrical connection to the new bulb component.
Position the inner fender wheel well cover back in place then reinsert the clips into their mounts. Push in the centre of the clips with the screwdriver to secure the cover.
Halogen headlight bulbs will burn out if handled improperly. The oil from your skin can cause the bulbs to fail. Do not touch the glass part of the replacement bulbs; instead, hold them by the plastic component at the bottom.