Skip to content
EN · km
Language
Units
My Garage
Maintenance and repair

How To Replace A Headlight Bulb

On some cars a headlight bulb can be changed from the engine bay in minutes; on others it needs panels removed. LED and xenon units are a different matter.

DifficultyMedium
Time15–45 minutes
AreaLights and wipers
On this page

What you need

  1. The correct bulbThe type is in the manual, for example H7.
  2. Clean glovesTo avoid touching the glass.
  3. Owner’s manualShows access to the bulb.

Step by step

  1. Check the bulb typeHalogen bulbs can usually be replaced by the owner. Xenon (HID) and LED units involve high voltage or sealed modules.Xenon systems use very high voltage; leave them to a workshop.
  2. Switch off the lights and ignitionLet the bulb cool down.
  3. Open access from behind the headlightRemove the dust cover.
  4. Release the bulbUnplug the connector and release the clip or turn the holder.
  5. Fit the new bulb without touching the glassSkin oils shorten bulb life.
  6. Refit the cover and testCheck the beam pattern against a wall if possible.

When to go to a workshop

If access requires removing the bumper or headlight, or the new bulb does not work, have it done by a workshop. Headlight aim should be checked after work on the lamp.

Questions about How To Replace A Headlight Bulb

Can I fit LED bulbs instead of halogen?

Only if they are approved for your headlights; otherwise they may be illegal and dazzle others.

Why does my new bulb fail quickly?

Touching the glass, moisture in the lamp or a voltage problem.