[W126 Coupe] Air Conditioning

[airedale at sbcglobal.net]

Probably first you should find out if it is out of Freon. Maybe something 
else is wrong. Then if it is you need to find the leak and repair it before 
putting more of any kind of gas in. R-12 is readily available and delivers 
more cold than R-134. If yours is a 87 to 89 it has less gas capacity than 
the 90 to 91 anyway by about 15% and I believe you would uncomfortably 
reduce the performance of the AC system using R-134.
John.
----- Original Message ----- 
From: "a figment of the imagination" <figstir at yahoo.com>
To: <mbcoupes at mbcoupes.com>
Sent: Wednesday, August 10, 2005 7:33 PM
Subject: [W126 Coupe] Air Conditioning


> Hi all,
>
> It is hot as heck where I live. My A/C blows out hot
> air that's hotter than the air outside. So...
>
> Has anyone been able to successfully convert their A/C
> system on their SEC to use RF134 instead of the RF12
> refrigerant?
>
> If so, can a simple $50 kit at say Autozone or
> O'Reilly's do it?
>
> A MBZ salvage yard owner told me that if you inject
> RF134 into a MBZ A/C system, after flushing the RF12
> out, that the pressure from the RF134 would be so high
> that it will blow all the seals, damage the condenser,
> expansion valve, etc....  (true/false?)
>
> However, someone else told me that this is not true
> and did the conversion himself on his car.  However,
> this person owns a Buick, so that opens up the
> question, even though he supposedly has a license for
> A/C work and was confident of his knowledge.
>
> Any recommendations?
>
> Thank ya!
>
> -Figment
>
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