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Old 06-15-2001, 04:19 AM
David C Klasse's Avatar
CheFrac is Back!
Join Date: Jan 2001
Location: Mission Hills in the City of San Diego
Posts: 2,352
I am aware that every Mercedes is CFC free.
I was recently reading in my 1995 C-class that "as with every 1995 Mercedes-Benz, no CFCs are used in the air conditioning system or anywhere throughout the cabin."

Now, I am aware that CFCs are Cloro Fluoro Carbons. And this is a form of pollution or something of the nature(?).
But how and why would CFCs ever be used in a car, and what is the purpose?

(I think you, John E will be able to help me.)
2006 E350 w/ 155k miles (Daily Driver)

1993 300E 3.2L Sedan w/ close to about 300k miles
2003 E500 Brilliant Silver (Had 217k miles when totalled!)
1989 300E with 289,000 miles (had for <1 yr while in HI)
03 CLK 500 cabrio (Mom's)
2006 C230k (Dad's)
1999 S420 (Mom's/Dad's)
2000 C230k Sport sedans
2001 CLK320 Cabrio (Mom's)
1995 C280 My First Mercedes-Benz... (155k miles. EXCEPTIONAL AUTOMOBILE. Was Very hard to let go of!)
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Old 06-15-2001, 08:07 AM
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Join Date: Jan 2000
Location: New Bedford, MA USA
Posts: 1,583
Dave, a lot of plastics are formulated with chlorinated esters and the like, certain type of PVC plastic and so on. I remember reading somewhere tha MBZ did not use the flourinated types of plastic in the trim, that they installed in their cars. An environmentally friendly initiative.
Jeff Lawrence
1989 300e
2000 Dodge Grand Caravan SE
No matter what you fix, there will always be something else to fix..
"Warranty" is just another way of postponing the inevitable.
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Old 06-15-2001, 12:22 PM
JCE's Avatar
JCE JCE is offline
Down to the Wear Bars
Join Date: May 1999
Location: So Kalifornia
Posts: 2,189
CFCs were originally used in AC systems as a substitute for the ammonia and similiar systems used at earlier times. It was considered environmentally more friendly and less toxic, flammible, etc. (But then, the automobile in the early 1900s was considered the answer to the biggest public health and environmental problem of the time, horse urine by the 1000s of gallons and feces by the 100s of tons per week in each city that bred flies and contributed to disease! "Today's solution is tomorrow's pollution"!) CFCs are still used (Halon fire extinguishers, some home/business air conditioners, etc) as there are no acceptable substitutes as yet.

Early plastics (and many current ones) contain Poly chlorinated biphenyls - PCBs, (or similiar compounds) which were also used as insulating fluids in large electrical transformers. Outgassing of these 'plasticizers' from electrical wiring, vinyl seats, dash boards, etc. is the 'new car smell' so beloved by consumers , and that wonderful sticky film that builds up on the inside of the windows.

Manufacturing a car is a trade off between emissions, safety, performnce, recycle ease, etc. Characteristics that make something easy to recycle at low cost may make the material too expensive to use in manufacturing, toxic, or may destroy the physical properties that make the material desirable (Imagine MBTex that is stiff as a board and cracks the first time you sit on it, or a wiring harness that is so biodegradable that it starts degrading before the car is 5 years old!)

Almost all the plastic in your car is made of different formulations, and will have the /_\ triangle and, PETE, PFTE, or some other 3 or 4 letter acronym for the type of plastic used. (look on a plastic container at home for examples). Germany (and many other countries) requires an increasing percentage of low cost recyclable parts in each of the cars, TVs, etc. made each year, and these symbols aid the sorting process. I believe it is Germany that has a TV recycling plant where old TVs go in one door, and out the other comes a tiny button of gold, a small lump of silver, a bigger chunk of copper, 2 small billets of iron and aluminum, a chunk of thorated glass, and a brick of plastic!

[Edited by JCE on 06-15-2001 at 02:03 PM]

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