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RE: '89 200 headlight fogging
I pulled and washed the passenger side unit on my Avant. It is noticeably
clearer than the driver's side, but the reflective coating is not great
anymore. I used a strip of terry cloth towel, knotted, with a piece of
string tied to one end to wash the inside. Add some soapy water, feed the
towel in there, and Shake Well. I wasn't able to do much with the city
light area since there's a barrier between the two areas and the light bulb
hole is much smaller. It improved the lighting a little and made the other
one look like hell. So now I have it and the two on the Coupe to do.
Interesting info about the vent holes... I'll have to look for those.
> -----Original Message-----
> From: WARATAP@aol.com [SMTP:WARATAP@aol.com]
> Sent: Tuesday, July 21, 1998 12:35 PM
> To: email@example.com; firstname.lastname@example.org
> Subject: Re: '89 200 headlight fogging
> In a message dated 7/21/98 11:59:10 AM Eastern Daylight Time,
> email@example.com writes:
> > A friend with an '89 200 asked me to post for him. His headlight
> > housings have fogged to the point that they look like DRL's. Any
> > wisdom on what he can do to fix this?
> First, find out why. Is/are there stone chip(s) in the lens (usually this
> is the problem). If not, check breather holes mounted towards rear of
> reflector. There should be two (not sure where on the 200 lens.
> Regardless, the headlight(s) should be removed. Locate the breather vents
> (small rectangular L shaped rubber hoses are attached to them). Remove
> the rubber caps and inspect breather holes. Often these holes have not
> been finished and are of insufficient size to handle the high humidity/
> temperature deviations of late. Using a small knife blade or X-acto
> knife, enlarge the openings. Then remove (if you haven't already) the
> light bulbs and use a hair dryer to remove the condensation within.
> There's a great spray on chandelier cleaning spray (can't recall the name,
> that I first spray inside, then fill headlight unit with water and rinse),
> prior to using the hair dryer. Then reassemble. If there's a stone chip,
> then I'd suggest trying to find a new (used one). Or you can try what I
> did (very time consuming). Since I hate the look of a siliconed headlight
> chip repair, I CAREFULLY (many hours) separated the lens from the
> reflector. Careful - the plastic breaks easily! They use a VERY strong
> adhesive for bonding the glass to the reflector. Then I took the inside
> glass chip caused by the stone and glued it from the inside of the lens
> using 5-minute clear epoxy. Then reassemble to reflector housing using a
> clear silicone sealer like for aquariums. Now you can mount it all back
> together into the car. And one more thing -- Invest in some 3 mil 3M
> clear protective film (available at GRIOTS and other sources) so you won't
> have to do it again!