Citroen C4 Headlamp Bulbs and Replacement Checks

It depends on the C4 version, headlight assembly and whether you mean dipped or main beam. Check the handbook and the fitted lamp marking, then confirm the match in a manufacturer vehicle finder.

Access varies by generation and engine bay layout. Follow the owner's handbook procedure for your exact car, and use a technician if the bulb cannot be reached without forcing components.

Different versions may have different lighting equipment. Confirm from the handbook, vehicle specification or headlamp markings rather than assuming the technology from the C4 badge.

It is not always required, but replacing a pair can help keep the light output and colour consistent when both bulbs are of similar age. Follow the vehicle and bulb maker's advice.