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  #1  
Old 09-22-2004, 09:08 AM
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What kind and how much refrigerant in a CLK 320 98?

R-12 or R136. I know this may be a no brainer....but I'm really a lamen when it comes to cars. Just trying to save a few bucks. Thanks fellas...
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Old 09-22-2004, 08:26 PM
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Most likely R-134a. The amount isn't a fixed weight, but is determined by pressures & temperatures at the time of fill.

You can do some reading on This site. The section 609 stuff is about cars. Reading the manual is a freebie. Taking the test for an EPA cert cost $.
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Old 09-23-2004, 01:54 AM
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Quote:
Originally Posted by nglitz
Most likely R-134a. The amount isn't a fixed weight, but is determined by pressures & temperatures at the time of fill.

You can do some reading on This site. The section 609 stuff is about cars. Reading the manual is a freebie. Taking the test for an EPA cert cost $.

THanks again!!
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Old 09-23-2004, 07:32 AM
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Norm,

I am 609 certified and have always charged by weight. I have looked HI and LOW for temperture/pressure charts like I used with R-12. For instance, at 90 deg ambiant temp the high side pressure should be XX psi and the low side should be XX psi. However I can't find anything similar for R-134. All I can find is what the pressure will be at a certain temp. Could you please explain how you charge a 134 system by the pressures.
Many thanks.
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