Headlight bulbs provide visibility for night driving and ensure your vehicle is seen by others on the road. Over time, bulbs burn out or become dim, reducing visibility and safety. Replacing faulty headlight bulbs restores proper lighting and helps you stay compliant with road safety regulations.

What is a headlight bulb replacement?

This service involves removing the faulty headlight bulb and fitting a new one of the correct type and brightness. Some vehicles have simple access panels, while others may require removing parts of the headlight assembly or bumper to reach the bulb.

Why do you need a headlight bulb replacement?

Driving with a failed or dim headlight reduces your visibility and makes it harder for other drivers to see you. It is also a legal requirement to have working headlights, and a faulty bulb may cause your car to fail a WOF or safety inspection.

Common signs you need a headlight bulb replacement

• One or both headlights not working
• Headlight beam appears dim or flickers
• Warning light on the dashboard for exterior lighting
• Discoloured or burnt-out bulb filament

What happens during a headlight bulb replacement?

A mechanic will:

1. Identify the correct bulb type for your vehicle
2. Access the headlight housing or assembly
3. Remove the old bulb safely without damaging connectors
4. Install a new bulb with proper alignment
5. Check the beam pattern and adjust if necessary
6. Test both headlights for brightness and function

How much does a headlight bulb replacement cost?

Standard halogen bulb replacement typically costs $50–$120. HID or LED bulbs, which are more complex, may cost $150–$400+ depending on the vehicle.

Is it unsafe to drive with a bad headlight bulb?

Yes. Reduced visibility makes night driving and poor-weather driving dangerous, and other drivers may not see your vehicle clearly. Replacing faulty bulbs immediately ensures safety and compliance with the law.