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  #1  
Old 05-31-2006, 11:48 AM
Fixin' anything moving
 
Join Date: Sep 2004
Location: Fort Worth, TX
Posts: 247
A/C filling capacity

Hi All:

Could anyone help me out with what the A/C freon and oil filling capacity is on a 1983 380SEC (So I know how much to buy). Low and High side pressures would also be welcome.

Thanks!

Greg

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1983 560SL Megasquirted (originally 380SL)

My former Mercedes:
1985 300SD ~190k
1990 560SEL
2000 C220 CDI
1983 380SEC 102k dual-chain conversion
2000 C280 70k (sold)
1987 300DT (W124 - sold)
1972 220D (sold)
1971 220D (sold)
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  #2  
Old 05-31-2006, 12:41 PM
Fixin' anything moving
 
Join Date: Sep 2004
Location: Fort Worth, TX
Posts: 247
one more questino

Are the A/C hoses usually barrier type in these cars?
__________________
1983 560SL Megasquirted (originally 380SL)

My former Mercedes:
1985 300SD ~190k
1990 560SEL
2000 C220 CDI
1983 380SEC 102k dual-chain conversion
2000 C280 70k (sold)
1987 300DT (W124 - sold)
1972 220D (sold)
1971 220D (sold)
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  #3  
Old 05-31-2006, 12:54 PM
Registered User
 
Join Date: Oct 2005
Posts: 4,263
For the capacity of R12, look at tthe sticker. Compute appropriately for other refridgerant types.

The original hoses on that car are not barrier type. If you're charging with HFC134a, it's not an issue unless the hoses are new (in which case they probably are barrier type).

I don't have a chart for that car, but note that there is not one specified pressure for each side.
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  #4  
Old 05-31-2006, 01:01 PM
Fixin' anything moving
 
Join Date: Sep 2004
Location: Fort Worth, TX
Posts: 247
Unfortunately my sticker is missing (well - not readable)...
A chart would be great (if anyone has one).

What do you all think of Autofrost as a replacement? Would it cause problems with my hoses?

(freon is just too expensive , although I am 609 certified).
__________________
1983 560SL Megasquirted (originally 380SL)

My former Mercedes:
1985 300SD ~190k
1990 560SEL
2000 C220 CDI
1983 380SEC 102k dual-chain conversion
2000 C280 70k (sold)
1987 300DT (W124 - sold)
1972 220D (sold)
1971 220D (sold)
Reply With Quote
  #5  
Old 05-31-2006, 01:02 PM
Registered User
 
Join Date: Oct 2005
Posts: 4,263
Wouldn't you have to convert to 134a first?
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  #6  
Old 05-31-2006, 01:04 PM
Fixin' anything moving
 
Join Date: Sep 2004
Location: Fort Worth, TX
Posts: 247
Way oo costly to convert. All hoses, compressor (or at least seals); looking at $1000+; I'd rather just fill it up with R12.
__________________
1983 560SL Megasquirted (originally 380SL)

My former Mercedes:
1985 300SD ~190k
1990 560SEL
2000 C220 CDI
1983 380SEC 102k dual-chain conversion
2000 C280 70k (sold)
1987 300DT (W124 - sold)
1972 220D (sold)
1971 220D (sold)
Reply With Quote
  #7  
Old 05-31-2006, 01:27 PM
skiier3_9's Avatar
Registered User
 
Join Date: Jan 2005
Location: Minnesota
Posts: 975
Use R12 - its not that expensive - visit http://store.lenzdist.com/ and call them to see what their price is.

Here is a decent table of pressures/ambient temps

R134a and R12 High and Low Pressure, Ambient and Vent (Evaporator) Temp

EDIT: According to ALLdata the 1983 380SEC takes 2.866 lbs (45.85 oz or 1300 grams) of R12
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Daily Driver: 02 E430 4MATIC
In the family: '03 E500 // '04 ML500 // 64 220SE
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  #8  
Old 05-31-2006, 05:36 PM
Fixin' anything moving
 
Join Date: Sep 2004
Location: Fort Worth, TX
Posts: 247
Does it say how much oil is needed in the compressor?

Thanks!
__________________
1983 560SL Megasquirted (originally 380SL)

My former Mercedes:
1985 300SD ~190k
1990 560SEL
2000 C220 CDI
1983 380SEC 102k dual-chain conversion
2000 C280 70k (sold)
1987 300DT (W124 - sold)
1972 220D (sold)
1971 220D (sold)
Reply With Quote
  #9  
Old 05-31-2006, 08:20 PM
skiier3_9's Avatar
Registered User
 
Join Date: Jan 2005
Location: Minnesota
Posts: 975
See attached pic - if you can't read anything let me know. Also - there is some different info for a Delco compressor
Attached Thumbnails
A/C filling capacity-380sec_compressor_oil.jpg  

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Daily Driver: 02 E430 4MATIC
In the family: '03 E500 // '04 ML500 // 64 220SE
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