Locate Mercury Cougar Led fog lights. Shop Mercury Cougar Fog Lights & Mercury Cougar Fog driving lights. Browse Mercury Cougar Auxiliary fog lights in Canada. Maintaining the fog lights on your Mercury Cougar is key to ensuring optimal visibility during inclement weather. Regularly cleaning the lenses and checking for any cracks or moisture can prevent early deterioration, while upgrading to high-quality LED or HID options can offer enhanced durability and brighter illumination. When the lights begin to dim or flicker, it's a sign they need replacement. For those in the market, our online catalog features a range of fog lights designed to match the Cougar's specifications, boasting easy installation and robust construction that withstands the rigors of the road, ensuring a seamless shopping experience that translates to safer driving.