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Old 04-22-2005, 05:24 PM
mctwin2kman mctwin2kman is offline
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Join Date: Jul 2004
Location: York, PA
Posts: 621
Quote:
Originally Posted by LarryBible
Yes, any automotive compressor leaks at the shaft seal, but if it is leaking at a rate that requires annual charging, the leak is too profuse and must be corrected.

A typical system will lose its charge in about 10 or 12 years. If you are charging it as often as once every year or two, you should consider this a leak, find it and repair it.

Auto a/c compressors don't leak any more in the winter than they do in the summer. In fact in most compressors they are more apt to leak at the shaft seal while the compressor is engaged and cooling. You might be getting this mixed up with the fact that the compressor shaft should turn a few turns at least once per week in the winter to keep the seal in good shape.

Have a great day,
Seals shrink at a much faster rate in the -20 degree F temps than the aluminum or steal does! I have seen this on several cars that were only a year old in Upstate NY. Not so bad on ones the last 10 years but before that it was an issue. Mostly with the old refrigerant cars not the new stuff. My family used to own a new car dealership for 75 years and I did see an awefull lot of compressor's leak down the system, not totally or anything but enough that after 2 years they would need a little refresh on freon!
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2003 Pewter C230K SC C1, C4, C5, C7, heated seats, CD Changer, and 6 Speed. ContiExtremes on the C7's.

1986 190E 2.3 Black, Auto, Mods to come soon.....
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