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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 07-08-2011, 08:32 PM   #1
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Join Date: Jul 2011
Location: USA, GA
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My Ride: 99 328i
AC Compressor Replacement Question

Help, after searching I can't find a definite answer:

If I am replacing a compressor on a 99 328i. Does anyone know how much R134a to add (is it 1.6 lbs or 2 lbs) and how much PAG46 oil to add?
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Old 07-08-2011, 10:22 PM   #2
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My Ride: 1999 323i
Did you put a vaccum on the AC system already? I believe you have to watch the system pressure to determine the proper amount of R134A.
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Old 07-08-2011, 10:40 PM   #3
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There should be a sticker on the hood about it.
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Old 07-09-2011, 12:00 AM   #4
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6-7 ozs - 2lbs +/-
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