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Mercury Grand Marquis Headlights

Common Problems with the Mercury Grand Marquis Headlights

Driving safely through any low-light road conditions is a must. With your Mercury Grand Marquis headlights, you are guaranteed with a clear road ahead, especially at night. Due to their location on your vehicle, headlights are made from the most durable materials to make sure that they are working properly. Headlights are built to last your car's lifetime, but they are prone to damage. From front-end collisions to busted bulbs, these are some of the most common reasons why headlights get damaged. If you encounter these problems, it's time to perform some troubleshooting. Below are some of the most common headlight problems encountered by Mercury Grand Marquis owners and some tips on how to troubleshoot them:

Moisture or fogging

Fogging or moisture buildup inside the headlights is one of the most common problems encountered by vehicle owners. Since car manufacturers have switched from glass to plastic lenses, headlights became prone to fogging overtime. Plastic lenses, although durable, are prone to severe weathering. They can develop small cracks that let moisture seep into the headlights. Dirt particles can also enter the headlight enclosure and affect the bulb's illumination. Your car's headlight lens can be replaced, and there are a lot of lens repair kits available in the market today.

Flickering or decreasing illumination

Another common issue affecting your car's headlights is either decreasing illumination or flickering. Dirt, discoloration, and moisture can affect your headlights' illumination. Flickering headlights, on the other hand, can be caused by faulty wiring or loose light bulbs. Decreased headlight illumination can be resolved by the making sure that your car's headlights is clean at all times. Inspect the headlights' lenses for any sign of damage or discoloration. Replace the lenses when needed. For flickering headlights, check the wirings and make sure that there are no loose or faulty wirings. Remove damaged wires and replace them with new ones.

Dimming or non-working headlights

Non-working or dimming headlights can be caused by a busted fuse or grounded relay. Check your car owner's manual for the location of the fuse box. Use a voltmeter to check if the fuses are working. Also, inspect your headlight's relays and switches for stripping or damage. Replace busted fuses, stripped or damaged relays, and switches to resolve the issue.

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  • Tip on How to Maintain Your Mercury Grand Marquis Headlights 27 February 2013

    Your Mercury Grand Marquis headlights make it easier for you to drive at night and during extreme weather conditions. Headlights are important safety features, and they need to be in good working condition at all times. Since these parts are also prone to dirt and damage, proper maintenance is needed to keep them bright and functioning when needed. Road and driving safety is of paramount importance and it should always be kept that way. Here are some tips to help you clean and maintain your Mercury Grand Marquis headlights:


    Keep them clean.


    Yes, a clean set of headlights ensures maximum illumination and prevents glare. Remember that your car's headlight lens are made from plastic and since dirt, mud, and dust particles can easily weather it out, keeping it clean is of utmost importance. Use mild car shampoo to remove dirt, mud, and grime from your headlight's lens. Toothpaste can also help brighten the lens and inhibit the plastic's discoloration. Apply penetrating lubricant like WD-40 on your car's headlights can create a protective film against dust and dirt particles.


    Balance focus and brightness.


    Your headlight's focus and brightness should always be balanced. Make sure that the headlight's beams are aimed correctly. Ideally, when your car is facing a wall, it headlight beams must be hitting the same height. If not, your headlights might create a blind spot for the other drivers that may lead to serious road mishaps. Also, check if the headlights are emitting a bright, white light when turned on. Bulbs dim over time, and their intensity diminishes. Misaligned headlights need to be adjusted by a professional and while you're at it, have the shop replace dimming headlight bulbs too.


    Replace bulbs in pairs.


    Never drive your car if one of your headlight or turn signal bulbs is not working properly. Aside from receiving a hefty citation ticket from the local authorities, driving with only one headlight or signal light working is like driving towards disaster. You need to see the road ahead and to avoid pedestrian traffic. Always replace your headlights' or turn signal bulbs in pairs to ensure that they're in proper working order.