2 Common Questions About Foggy Vehicle Headlights

Headlights are literally the eyes of an automobile. It is common for vehicle headlights to develop a fog-like layer after a vehicle has been in use for an extended period. The development of this fog-like layer is often attributed to various factors. This article discusses a few of these factors in question and answer format. It also provides a discussion on whether a vehicle owner should repair or replace automobile headlights once they become foggy.

Why Do Car Headlights Become Foggy?

Oxidation is often among the factors that contribute to the development of fog in vehicle headlights. A large number of vehicle headlights are fitted with polycarbonate lenses. When these lenses are exposed to atmospheric air, they get oxidized. The foggy/ yellowish appearance of car headlights often occurs due to this reaction. Exposure of polycarbonate lenses to the air often happens when headlights crack as a result of long-term exposure to UV radiation.

Automobile headlights may also become foggy as a result of road-damage. When driving, small rocks and similar debris are often projected into the air as the vehicle moves along. Many times, the rocks and debris will land on the vehicle's headlights. This often leads to the development of pits and dents on the headlight. Once dented, the headlights will allow moisture to penetrate into their internal structure.

Should A Foggy Headlight Be Repaired Or Should It Be Replaced?

Vehicle owners have the option of repairing foggy headlights or replacing these headlights with new ones.

Many times, a vehicle owner will choose to have foggy headlights repaired for financial reasons. A faulty headlight will be disassembled and cleaned at an auto repair shop. Afterwards, the cracks or dents responsible for the foggy appearance will be sealed and the headlight will be re-installed on the vehicle.

However, the option of headlight replacement is associated with a number of significant advantages. For one, sealed cracks and dents are often unsightly on automobile headlights. The location of cracks and dents on the headlight surface may also interfere with the dispersion of light after the sealing compound has been applied.

More importantly however, the option of replacement allows the vehicle owner an opportunity to upgrade to their automobile lighting. For example, a large number of automobiles have halogen headlights. Replacing a foggy halogen lamp instead of repairing it allows the homeowner to consider the benefits of a more energy efficient headlight (e.g., H4 LED headlights).

For more information, talk to a headlight professional like Creative Lighting Solutions Aust Pty Ltd.

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