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#1
05-07-2008, 02:38 PM
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W126 AC Service port fittings
Whilst we're talking about AC....
Anybody know what size the service port fittings are on a W126? Its a pre 9/85 if it makes any difference. I have the option of purchasing adapters in 1/4" or 3/16" size I also have the option of converting to a 13 and 16mm acme or GM style push on fittings, which would be better in the long run? I need to order some conversion fittings so my friends 134 machine will hook upto my car. I've changed all the o-rings, receiver drier, expansion valve etc etc in my quest for working AC. Over in this country, i've found that the only options are r134 or freeze 12. Cheers, Ben. 
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#2
05-08-2008, 09:40 AM
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Since there were 35 views and no answers I'll taks a stab at it.
 I don't know the answer but if I needed to know I would search the internet for the size of standard R-12 fittings. Shouldn't be too hard to find. Danny
__________________
1984 300SD Turbo Diesel 150,000 miles OBK member #23 (\__/) (='.'=) This is Bunny. Copy and paste bunny into your (")_(") signature to help him gain world domination
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#3
05-08-2008, 09:06 PM
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If your car has the original R12 fittings, there are R134 fitting adapters available just for that purpose. What are you doing that you have to know the fitting size, other than getting an fitting adapter kit?
__________________
-Josh Testing the cheap Mercedes axiom, one bolt at a time...
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#4
05-09-2008, 02:54 AM
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Well I bought a fitting adapter kit, consisting of two adapters. The low side fitted fine, but the high side adapter was too small to fit on the existing fitting.
I emailed the owner of the store that i'd be buying the new fittings from, and he said 'just buy the fitting adapter kit'. What I dont want is another low side that will fit, and high side that wont! Cheers, Ben.
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