Headlights are cloudy again. Ideas? Or can I purchase just lenses for 2002 c230k thank you.

You might be able to get lenses , try the sponsor of this site, Peach Parts. ( links at top of page )

Thanks yes I've ordered from them in past hoping affordable lens not $$ full lights

When you get the lenses go to Wal-Mart and purchase some of the vinyl they have in the crafts section. You can use that over your lights to protect them. I had glass lenses but someone ended up breaking one of them and I was going to buy a new set from eBay, but in the mean time I needed something to cover the light that could withstand the heat. I ended up going to Wal-Mart and purchasing the thickest clear vinyl they had. To my surprise I noticed that my light output increased tenfold. I ended up removing the other glass lens and just using the vinyl. I covered the entire housing so no water gets in, it's been about 6 months and no issues. Easy to clean and super durable. It's so thick that something would have to be pretty heavy and sharp to pierce through it. It's like $4 for a square yard which is plenty. I would at least get some and put a film over your new lenses for protection. Wouldn't hurt

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1990 190E 3.0L

Thanks I've not yet found only lenses seems most selling full replacement unit too $$$ right now. Any ideas for cleaner?

1000 grit wet sand paper, then rubbing compound (Ultimate Compound by Meguiars), then a polish (also by Meguiars). I have done that treatment to the small plastic Mercedes emblem on my center steering wheel as well as to the lenses of my front and rear cameras. Both turned out excellent. I don't know the condition of your lenses, but I would try it by hand first before using a machine. And unless you're going to protect the lenses with the clear vinyl (which I'm not sure if it will help since they are already hazy) I would probably throw on some sort of sealer as well. My friend that does restorations at his shop has just incorporated that into his restoration processes. It may help prolong the life, but ultimately the haze will eventually return. Ideal situation would be glass lenses with a protective film from small rock chips, pitting, and debris because the glass will not yellow or break down because of UV rays or chemicals in the environment.

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1990 190E 3.0L

Thank you