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  #1  
Old 08-21-2006, 08:15 PM
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Interior window haze

Has anyone here ever had a problem with a recurring haze on the windows inside your car? It's almost like the nicotene build-up you would get if you were a heavy smoker except not brownish.

I can clean my windows very well and in a week they are becoming all hazy and smeared up looking. I usually just use Windex and paper towels to clean the glass. Never had a problem like this before.
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  #2  
Old 08-21-2006, 08:22 PM
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that haze on your windows is a collection of gaseous chemicals released by high heat and sunlight from the plastic interior parts of your car. the bulk of it is oil, the rest is an array of chemicals with rather disturbing names and physical effects. it's very important to get the windows down quickly in an overheated interior and probably a bad idea to lick the windows.
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Old 08-21-2006, 11:05 PM
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Thanks for the warning, Kitchenrat

Will cease licking my windows immediately. I'm not sure this would have started only recently. It gets very hot here in the summers, but I've never had this happen before. I haven't been using anything different in the car such as cleaners, leather protectors, etc.

Maybe I'll just leave my windows cracked a bit on hot days and see if that helps.
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1998 Lincoln Continental - Sold
Max 1984 300TD 285,000 miles - Sold
The Dee8gonator 1987 560SEC 196,000 miles - Sold
Orgasmatron - 2006 CLS500 90,000 miles
2002 C320 Wagon 122,000 miles
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  #4  
Old 08-24-2006, 04:24 PM
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Small amounts of coolant leaking into ventilation system?
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Old 08-24-2006, 04:56 PM
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Quote:
Originally Posted by beevly View Post
Small amounts of coolant leaking into ventilation system?
That's what it sounds like to me too.
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  #6  
Old 08-25-2006, 02:38 PM
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Where?

Quote:
Originally Posted by beevly View Post
Small amounts of coolant leaking into ventilation system?
Where might a leak like this occur? I'm guess there are some coils across which air flows and this would probably be the spot? Is that the component refered to as the evaporator?
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1998 Lincoln Continental - Sold
Max 1984 300TD 285,000 miles - Sold
The Dee8gonator 1987 560SEC 196,000 miles - Sold
Orgasmatron - 2006 CLS500 90,000 miles
2002 C320 Wagon 122,000 miles
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Old 08-26-2006, 09:00 AM
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Yes, heater core. There's probably a way to test this effectively, because I suspect on the MB it's not an easy part to access and replace. I've only ever replaced them on a couple of Rangers and a Bronco II, where it's a 15 minute job, so it's easy to just remove and visually inspect. Probably a VERY different story here.
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Old 08-26-2006, 09:42 AM
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I believe it's a major undertaking on a 300D, which I have been thinking of buying. Don't know if it's the same for all Benzes or not. On that car the dashboard has to come out to get to the errant part.
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1998 Lincoln Continental - Sold
Max 1984 300TD 285,000 miles - Sold
The Dee8gonator 1987 560SEC 196,000 miles - Sold
Orgasmatron - 2006 CLS500 90,000 miles
2002 C320 Wagon 122,000 miles
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Old 08-26-2006, 09:49 AM
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The heater core is near the AC evaporator -- both require removing the whole dash and is thus a big job.

If the heater core is leaking, to the point that you're getting a coolant film on the windows, you should be able to smell it. Coolant has a very characteristic "sweet" smell.

On the other hand, I have battled a filmy haze on my windshield ever since I've owned the car, esp. in the summer. I think it's just "outgassing" of the plasticizers used in the vinyl.

The best thing I've found to get it off is the window cleaner sold by Griot's Garage. I also use their disposable paper towels. I'd recommend NOT using conventional paper towels as they often seem to have something on them which leaves its own haze. Also, using cloth towels can work, as long as fabric softener isn't used when they are washed.
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  #10  
Old 08-26-2006, 10:36 AM
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Thanks, Steve. I'll try that. I'd like to think it's the outgassing, but since this has only begun recently, I suspect it is the leaking coolant. I'll try your cleaning suggestion, though.

Just as a way to test this leakage theory, wouldn't driving with the AC off eliminate the problem? Would this still occur when the heater is in use?
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OBK #55

1998 Lincoln Continental - Sold
Max 1984 300TD 285,000 miles - Sold
The Dee8gonator 1987 560SEC 196,000 miles - Sold
Orgasmatron - 2006 CLS500 90,000 miles
2002 C320 Wagon 122,000 miles
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  #11  
Old 08-26-2006, 02:40 PM
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With most vehicles, coolant flow occurs through the core no matter what, and air temp is controlled by deflecting air across the core (or not). If that's the case, then you'll get the haze regardless. I'm not sure on the MB since I'm just getting started tinkering with mine over the last month or so. You may be able to bypass the core in the engine compartment, but somebody with more experience will need to advise how that will affect coolant flow on your system.
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  #12  
Old 08-28-2006, 09:56 AM
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I think if the heater core was leaking to the point it needed replacing, you would see a drop in the coolant level, in addition to sensing the sweet smell. I sure wouldn't pull the dash based on my WAG. If the level is fine, maybe just keep cleaning the windows and try to park in the shade, if not a garage.

The best thing I've found for windows is paper towels and glass cleaner, followed by a microfiber cloth with a tiny amount of cleaner. Newspaper also works great, especially for sap on the outside, but I can't stand the feel of it. Like rubbing styrofoam together.
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  #13  
Old 08-28-2006, 10:14 AM
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Thanks for all of your suggestions. I've had to drop everything else for the time being to get a bunch of house repairs finished. I'm looking forward to selling my big suburban house and getting something more manageable once the last kid leaves for college.
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OBK #55

1998 Lincoln Continental - Sold
Max 1984 300TD 285,000 miles - Sold
The Dee8gonator 1987 560SEC 196,000 miles - Sold
Orgasmatron - 2006 CLS500 90,000 miles
2002 C320 Wagon 122,000 miles
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  #14  
Old 09-10-2006, 10:12 PM
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A/C died today

I suspect the suggestions regarding the A/C leaking intp the car are correct. My A/C gave up the ghost today, so I guess that's the most likely culprit.

Thanks for your sage observations.
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" The market, like the Lord, helps those who help themselves. But, unlike the Lord, the market does not forgive those who know not what they do."- Warren Buffett

OBK #55

1998 Lincoln Continental - Sold
Max 1984 300TD 285,000 miles - Sold
The Dee8gonator 1987 560SEC 196,000 miles - Sold
Orgasmatron - 2006 CLS500 90,000 miles
2002 C320 Wagon 122,000 miles
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  #15  
Old 09-12-2006, 01:35 AM
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Id reccomend using vinegar on your windows- no chemicals, plenty of acid to dissolve the grime, and leaves the windows TRULY streak free. Paired with micro-fiber cloths, you cant go wrong.
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