[W126 Coupe] Re: Refrigerant info

[Rupert Schmitt]

Thank you very much Ian, I'll try soon.

MFG, Rupert

-----Original Message-----
From: mbcoupes-bounces at mbcoupes.com
[mailto:mbcoupes-bounces at mbcoupes.com] On Behalf Of Iain Gunn
Sent: Saturday, August 13, 2005 10:49 AM
To: Mercedes Coupes Mailing Lists
Subject: Re: [W126 Coupe] Re: Refrigerant info


I hope this helps. It is not complicated, it just looks that way. As I
said, Go to the Duracool site and educate yourself 
http://www.duracool.com/ If you have never worked on a A/C system, get 
someone who has to assist. The biggest mistake you can make is to
connect to 
the high side, the next is to overfill.
You cannot direct fill or top up on a r12 system. You Can on a r134
system. 
In an R12 system, you need to have the system evacuated ( go to an
garage 
that can empty your system, tell then you are having the engine pulled
or 
something and you need the system empty, and have a vacuum pulled on it
to 
see if there are any leaks.) Do not tell them you are going to do your
own 
work and are using an alternative refrigerant or be prepared for the
biggest 
line of doublespeak you have ever heard. If your system is Ok you fill
with 
the 12a. Go here for instruction sheet 
http://www.deepfreezeinc.ca/pdf/complete.pdf


DC0098
Brass conversion fitting (Capped)
converts high side and low side R12 ports
to R134a quick release fitting. (Most vehicles).
Package contains one #DC0095 and one #DC009


Universal Recharge Kit
Includes:
Charging hose
Adapter fittings
2 Cans - 6oz Refrigerant
    You will require these parts to cover the old r12 valves and the 
recharge kit should have enough refrigerant to fill your system.
Purchase 1 
extra can to be on the safe side. Basically if your system is OK, you do
not 
need to add oil, as there should be enough oil left in the system. What
I do 
is fill the system as per the instructions. DO NOT OVERFILL, Ignore the
old 
saying, "clear the bubbles in the sight glass" (If you do that you will
have 
far too much coolant in the system).You use LESS duracool than r12 or
r134. 
I put only enough in the system to get the compressor to start and then 
cycle it on and off  3-4 times. I then let the system idle. If it starts
to 
cycle of and on, I add small amounts only until the cycling stops.
Believe 
it or not this is the safest way to fill.