Driving in heavy fog without working fog lights can be risky both for you and others on the road.
If your fog lights are dim, flickering, or completely out, it’s time for a replacement.
The good news?
Changing fog lights is usually affordable, ranging from $55 to $600.
In this guide, we’ll break down the costs, factors that affect pricing, and the best ways to save money while keeping your night drives safe.
This Article Contains:
- How Much Does a Fog Light Replacement Cost?
- When Should You Replace Your Fog Light?
- How to Diagnose a Bad Fog Light Bulb Step-By-Step
- How to Replace a Fog Light Bulb: A General Know-How
- Why Is a Professional Fog Light Bulb Replacement Better?
- How to Save Money on Fog Light Installation Costs
Let’s cut through the fog!
How Much Does a Fog Light Replacement Cost?
Here’s what you’ll have to spend to swap out a faulty fog lamp:
A. Range
On average, expect to pay between $55 and $600 for a new fog light. The final cost, however, depends on your car model, the type of bulb your car uses, and the establishment you prefer for a professional replacement.
Here’s a breakdown of part and labor for each bulb type:
1. Halogen Bulb Replacement ($55 – $205)
- Part: $15 – $35 per bulb
- Labor: $40 – $170
2. LED Bulb Upgrade ($130 – $500)
- Part: $50 – $100 (basic LED kit)
- Labor: $80 – $400
3. Fog Light Assembly Replacement ($150 – $570)
- Part: $100 – $400 per light
- Labor: $50 – $170
B. Factors
Besides the type of fog light bulbs, a couple of factors can influence your final bill. These include:
- Vehicle make and model: Some vehicles, like the Honda Civic or Ford Focus, have easily accessible lights, making replacement quick and affordable. Other cars may require removing parts of the bumper or grille, which increases labor time and overall cost.
- Additional parts: Basic plug-and-play bulbs easily fit into most vehicles. However, some cars need extra components like wiring harnesses or load resistors, which can add $15 – $40 to your parts cost. You may also require installation hardware, such as brackets or trim pieces that usually cost under $20.
- Type of shop: Dealerships typically charge higher labor rates, around $120 – $180 per hour, while independent shops are more affordable, ranging from $80 – $130 per hour. More complex installations, such as those involving extra wiring or adapters, can extend labor time and push costs above $250.
- OEM vs. aftermarket parts: OEM (Original Equipment Manufacturer) fog light bulbs and assemblies tend to be more expensive, while aftermarket options are more budget-friendly but may not offer the same durability.
- Single vs. pair replacement: It’s recommended to replace both fog lights at once for even brightness and color. This will double the parts cost but save on future labor.
- Location: Mechanics in big cities or areas with a high cost of living typically charge more than those in small towns or rural areas.
When Should You Replace Your Fog Light?
Here are five scenarios that call for an urgent fog light replacement:
- Dim, flickering, or reduced light output: Inconsistent output is a sign of a failing fog lamp or poor electrical connection. This can reduce visibility in bad weather.
- Uneven or distorted beam pattern: A damaged reflector or misaligned housing can cause patchy lighting, making replacement the best fix.
- Old or worn-out bulb: Over time, lenses, reflectors, and seals degrade, making fog lights less effective even if they still work.
- Cracked lens or water inside the housing: Moisture can seep in through cracks and eventually cause the fog light to fail. In this case, you’ll likely need a full assembly replacement.
- Failed inspection or legal compliance issues: Non-functioning fog lights can lead to inspection failure or fines, so timely replacement is a must.
How to Diagnose a Bad Fog Light Bulb Step-By-Step
Not sure if you have a bad fog light bulb?
Here’s how a mechanic can diagnose it:
- They’ll start by removing the fog light bulb from behind the front bumper cover.
- Next, check whether the filament wire inside the bulb is intact or broken. If it’s broken, they’ll replace the bulb and test it.
- If the filament looks fine, they’ll test the socket for proper voltage and amperage.
- If no power is reaching the bulb socket, they’ll trace the wiring back to the last point with known power and repair the fault.
- If both fog lights have no power, the issue may lie with the fog light switch or relay, which they’ll test next.
How to Replace a Fog Light Bulb: A General Know-How
If the bulb is at fault, the mechanic will replace it by performing the following steps:
- They’ll access the bulb either from the front of the bumper or by removing the undercarriage guards and ballast to reach the bulb. They’ll avoid using power tools to prevent cracks or stripped screws.
- Next, twist the bulb from its socket and carefully remove it. They’ll ensure not to touch the bulb barehanded as the oil from the skin can lead to premature failure.
- The mechanic will insert the new bulb into the socket and secure it; replace the ballast or socket if removed earlier.
IMPORTANT: Always use the same bulb color as originally installed on your car. Bulb color is regulated by law in the U.S. and requires fog lights to emit either white, red, or amber light (depending on the state and vehicle type). Using a different color, like blue or green, can violate traffic laws, cause visibility or glare issues, and result in tickets or failed vehicle inspections.
Why Is a Professional Fog Light Bulb Replacement Better?
While a DIY isn’t impossible, professional installation offers several advantages that make the extra cost worthwhile:
- Warranty protection: Shops offer both parts and labor warranty, giving you recourse if any issues arise during the coverage period.
- Expert diagnostics: Professionals can identify compatibility or wiring problems before installation, preventing costly mistakes.
- Proper tools and equipment: Experts ensure correct installation without risking damage to expensive components or electrical systems.
- Time savings: You can focus on other priorities while they complete the job efficiently. Mobile mechanics go one step further by coming to you, saving you travel time.
- Quality assurance: Mechanics conduct post-installation testing and adjustment for optimal fog light performance and beam alignment.
How to Save Money on Fog Light Installation Costs
Follow these four tips to reduce costs without compromising on quality:
- Compare prices across dealerships, auto shops, and online suppliers to find the best deal on parts and labor.
- Consider mobile mechanics for convenient service at your location with competitive pricing.
- Ask for written estimates breaking down parts, labor hours, and additional charges to avoid surprises.
- Some stores offer extended warranties on parts and labor; paying slightly more upfront can save money if future issues arise.
Get Quick Fog Light Replacements with AutoNation Mobile Service
Properly functioning fog lights aren’t just a legal requirement — they’re essential for safe driving in poor visibility.
For hassle-free fog light replacement with professional service, warranty protection, and convenient repairs at your location, consider AutoNation Mobile Service.
We’re a mobile auto repair solution available seven days a week. We also back all our services with a 12,000-mile | 12-month warranty.
Get a quote today.