Originally Posted By: Yup
I tried a hand sanding kit last year. The Turtle Wax brand for $10. They're yellow again. So if I do the 3M kit with a drill, every few months how do I upkeep them? Wipe them off with alcohol and spray the UV protectant? The car is 15 years old, they started fogging pretty bad a few years ago, now I'm just trying to keep them relatively clear. I've watched YouTube and read some forums and saw the Bug Spray thing LOL The plastic trim on my door is all messed up from spray on sun block.
Is there a brand of the UV protectant that lasts longer than others?
My 2000 E430 was very bad some years ago, I used 3M kit and about twice a year I used Kit Scratch Out applied by hand and buffed by hand for few minutes. The headlights are looking good as of now.
There is nothing you can do to keep the plastic headlight becoming yellow for longer than a year or two.
Applying some chemical and Buffing few minutes twice a year isn't too bad.