Frosted, yellow, faded, ugly head lights.
98% of the vehicles today use plastic head light housings with plastic lenses, no glass lenses anymore. As the clear plastic lens age, the protective UV coating on the plastic goes bad and starts to fade or frost over. Some plastic head light housing do not have a protective film, and they show age within 3 to 5 years from new. 
We re-finish plastic head light lenses all the time.
Not all lenses can be saved. Rock pits, scratches, and plastic cracking can not be fixed with sanding if it’s too deep into the plastic surface. 20% of the head lamp housings I run across in my shop have major damage and need to be replaced.
Replacing factory head light housings with quality aftermarket units is not super expensive, but the labor to change out the light housing could make replacement out of the question for some budgets. 
The process of refinishing the plastic lens is fairly simple, and many parts stores sell DIY kits to sand, polish and protect the plastics.
Doing it your self or paying a repair shop to do this procedure will make your car look newer, and maybe influence you to keep your car vs buying a new one. Looks are everything, and the clients comment right away that it looks like they have a new car again. The second big plus to cleaning and polishing the lenses is your head lights will project farther down the road, You can see better at night.
So here it is in a nut shell, we clean the plastics, wet sand the imperfections out of the surface. Then use a 2 step polishing compound to restore the clear as glass look. Last step is a double coating of wax. Regular car war works fine for this.
Keeping things looking clear depends on the owner washing and re-waxing the lenses, but we can also do that for the client when they are in for an oil change.
It’s all good under the hood. HeyAnthonyAz.com
Filters protect your car from harmful debris that can cause damage to internal moving parts. The engine, and transmission need service regularly to keep them alive and happy. So what about you, the driver? Back in the mid 80’s some European car manufactures started adding air filters to the A/C system. Mercedes-Benz called it a particulate filter and it protected the A/C evaporator core from getting contaminated with hair, lint, leaves, and other nasty things that could get pulled into the air intake of the A/C system. It also protected the inside of the car from dust and oder. Most of all, the clean air was a benefit to the driver. European cars started using “Cabin Air Filters” first, around the mid 80’s. In the late 90’s I started to see them in high-end Japanese cars, and by the mid 2000’s almost all cars had some type of Air Filter added to the A/C system. The filter works great till, till it looks like the one in the picture. A filter can only do its job if it can catch and hold the dirt. This filter is past its way past its prime. looking at it, you might think it’s very old, but it’s only 3 years old, but the car is only used in town and in 3 years has only driven 7,000 miles.
working on the car.
