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  #1  
Old 06-03-2002, 01:47 PM
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Join Date: Oct 1999
Location: New York City Burbs
Posts: 177
Need A/C High & Low Side PSI Ranges / 84 190E

After blowing up the original equipment while topping off my AC yesterday, I am taking another run at it once I get the new parts.
I was up to about 200 psi High side & 25ish Low side when it blew. Normally these are not considered high.


What are the acceptable ranges for high & low according to the Benz bible?

Hint: car uses 2.2lbs of r-12 freon.

Thanks folks!
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Patrick Leber
'84 190E 2.3
'83 Porsche 944 (track car)
'84 Porsche 944 (parts car)
85.5 Porsche 944 (sled)
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  #2  
Old 06-03-2002, 04:21 PM
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Join Date: Oct 1999
Location: New York City Burbs
Posts: 177
Dubious Haynes Manual Specs

A reliable source form the 'Rennlist' website gave me the following specs on AC psi ranges:


1984 thru 1986 190 series: 24 to 34 230 to 275


and
1977 thru 1979 450SL/SLC: 22 200
1977 thru 1982 230, 240D: 28 to 30 265
1977 All except above: 22 205
1983 240D: 10 to 30 160 to 320
1981 thru 1986 all except above: 22 265

While my contact is reliable, I'm not so sure about the Haynes specs. I have seen some wild discrepancies over the years between them and factory manuals. But I'm not here to bash , just to clarify.

Can anyone confirm these #'s, particulary the 84 190E?

Thanks in advance!
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Patrick Leber
'84 190E 2.3
'83 Porsche 944 (track car)
'84 Porsche 944 (parts car)
85.5 Porsche 944 (sled)
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