[W126 Coupe] AC

[mavris2 at comcast.net]

If its on the high side, I'd bet money it the short blue hose that is 
between the drivers head light and the condenser. This high pressure line 
runs from the condenser to the receiver dryer that just behind the drives 
head light. This is a common problem with that leaking on the high side. 
There should not be any other leaks on the high side.
You may not see the hose right away as they tend to get a lot of muck on 
them and look black.  But If you wipe it off its is blue.
You'll need to replace this hose.
To check the compressor, this is simple.  1st make sure the A/C belt is 
still on there, good sign.  Then reach down on the front of the compressor 
and see if you can turn the clutch. Which should turn freely, might be a bit 
stiff but should turn pretty good.   If clutch turns then you should be ok.

If your system has been down for a while you should also replace the 
following, high and low pressure switched and dryer, and a new O-ring for 
the addition high pressure line that runs along the fender(it too hooks into 
the dryer), should be blue if original if changed it will be black.  Have a 
vacuum put on it and make sure its holding then recharge and your good to go 
!

Jason


----- Original Message ----- 
From: "Michael S Cosby" <michael.cosby at state.co.us>
To: <mbcoupes at mbcoupes.com>; <spell.yy at verizon.net>
Sent: Friday, August 05, 2005 11:30 AM
Subject: [Norton AntiSpam] Re: [W126 Coupe] AC


> My AC has a leak on the "high pressure side"  Pre taking it to my
> mechanic, is there anything I can do to see if it is in the compressor?
> Or hose?  The system is now empty and was converted over to 134A 4-5
> years ago.
> Thanks!
> Mtnmike
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