Headlight lens yellowing on Hyundai Elantra

Average mileage: 125,250 (50,000–266,000)
3 model years affected: 2000, 2001, 2005
4 people reported this problem
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Viewing 1 - 3 of 3 problem details
This is more of a nuisance than a severe mechanical problem: my headlight lens both have filmed over. Light output to the road has decreased as a result. I checked out numerous headlight lens cleaners and polishers, but nothing guaranteed a solution. I saw that some kits contained a high grit sandpaper. I decided to experiment, as my lights couldn't get any worse, and used some Bon Ami on a wet cloth and rubbed the lens vigorously. It worked very well. Of course, I tried it out on a small section of the light prior to doing the entire lens. (by the way, I'm sure that Ajax would work as well as Bon Ami). I can now see the road again at night. The can of Bon Ami cost me about $1.60. I think it was a good deal.
2001 Hyundai Elantra 125,000 mi,
I bought car used, just replaced headlights from Rockauto.com, $45.00 each.
2000 Hyundai Elantra 266,000 mi,
My car to me is still my baby, runs well but the headlights are very yellow and even cracked where you get moisture inside. Night driving is becoming dangerous, please help.