How to Remove Fog and Fading from Headlights
Author: Toby Date Posted:21 February 2025
Foggy or yellowed headlights are a common problem, especially in Australia where sun exposure and dust take a toll on plastic lenses. Over time, UV damage causes headlights to cloud over, reducing light output and making night driving harder than it needs to be.
The good news is that you don’t need to replace them straight away. Headlight restoration is simple, effective, and far more affordable. A typical restoration kit costs around $30–$80, while replacing a headlight assembly can easily run $300–$1,000+ per side, depending on the vehicle.
In this guide, we’ll walk through exactly how to clean and restore faded headlights, so you can improve visibility, stay safer on the road, and give your car a cleaner, well-maintained look without spending a fortune.
What You’ll Need
Before you get stuck in, grab a few things:
- Polishing pads
- Microfibre cloths
- Protective sealant (this is key to keeping them clear for longer)
- Headlight restoration kit (includes all of the above already)
- Masking tape
- Sandpaper (800, 1200, and 2000 grit)
- A spray bottle with water
- Soap and water
Step-by-Step Guide to Clean Foggy Headlights
1. Start with a Good Clean
First, give your headlights a proper wash with soap and water. This gets rid of all the surface dirt and makes the rest of the job easier. Dry them off with a clean microfibre cloth.
2. Protect the Paint
Use masking tape to cover the edges around your headlights. You don’t want to accidentally scratch your paint with sandpaper!
3. Sanding the Headlights
If your headlights are really cloudy, wet sanding is your best bet. Here’s how to do it:
Start with 800-grit sandpaper. Spray the headlight and the sandpaper with water to keep it nice and damp, then sand in small circular motions.
Move up to 1200-grit, then 2000-grit, to smooth everything out.
Keep spraying water as you go so the surface stays wet–it makes the sanding process much easier.
If your headlights aren’t too bad, you might be able to skip this step and go straight to polishing.
4. Polish It Up
Grab your headlight restorer and apply it to a microfibre cloth or a polishing pad. If your kit includes a lubricant, use it as directed to keep the surface smooth and reduce friction while polishing.
Work the product into the headlight using steady, circular motions. This step helps break down remaining oxidation, smooth out fine sanding marks, and restore clarity.
Continue polishing until the lens starts to look clear and glossy, then wipe away any residue with a clean cloth.
5. Seal the Deal
Once your headlights are looking clear, apply a sealant. This step is super important. This protects your headlights from getting foggy again. Just spray it on and let it dry, and you’re good to go.
Tips to Keep Your Headlights Looking Good
After putting in the effort to clean your headlights, you’ll want to keep them looking fresh. Here are some easy tips:
- Wash Them Regularly - Just like the rest of your car, your headlights need regular cleaning to prevent dirt and grime from building up.
- Use a Sealant - Reapply a sealant every few months to keep oxidation at bay.
- Park in the Shade - Whenever possible, park in a garage or undercover to protect your headlights from harsh sunlight.
- Avoid Harsh Chemicals - Some cleaning products can damage the protective coating on your headlights, so stick to products made for car care.
Brighten Up Your Ride with Superspares
Need a hand? Superspares, your trusted auto parts online shop, has everything you need to keep your car looking its best. From headlight restoration kits to polishing compounds to car detailing essentials, you’ll find the right products for the job in one place.
Foggy or faded headlights don’t just affect how your car looks, they can impact visibility and safety too. With the right restoration kit and a bit of effort, you can bring clarity back to your headlights and give your vehicle a fresh, well-maintained finish.
Whether you’re doing a quick tidy-up or a full refresh, quality car care products make the process easier and the results last longer. Your car will look sharper, drive safer, and feel better every time you’re on the road.
Written by Toby Martin
Automotive Content Specialist
FAQs
1. Why do headlights turn foggy or yellow over time?
Most modern headlights are made from polycarbonate plastic, which degrades when exposed to UV rays, heat, dirt, and road grime. Over time, the protective coating breaks down, causing oxidation that leads to fogging and yellowing.
2. How often should I restore my headlights?
Most vehicles benefit from restoration every 12–24 months, depending on sun exposure and parking conditions. Regular cleaning and UV protection can reduce how often full restoration is needed.
3. How long do restored headlights stay clear?
With a proper UV sealant applied, restored headlights can stay clear for 6–12 months. Parking undercover and reapplying sealant periodically can help extend the results even further.
4. Do I need to sand my headlights every time?
Not always. Light haze or minor fading can often be fixed with polishing alone. Sanding is only necessary when the headlights are heavily oxidised, yellowed, or rough to the touch.
5. Is headlight restoration cheaper than replacement?
Yes. Restoring headlights costs a fraction of replacing them and can dramatically improve visibility and appearance, making it a smart first step before considering new headlight assemblies.
6. Are foggy headlights a roadworthy issue in Australia?
They can be. Severely faded or cloudy headlights may reduce light output and fail roadworthy inspections in some states, as they can affect nighttime visibility and safety.
