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  #1  
Old 07-15-2011, 12:05 PM
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W126 AC Oil quantity check?

All

I am attempting to bring my AC back to life on the W126 89 300SE with a Denso 10P15C Compressor. I have it all dissassembled, flushed (except the muffler) and will be putting it back together with a new compressor, receiver/dryer, sensors on receiever/dryer and expansion valve. I am keeping the system R12 2.9 Lbs and I am using Mineral oil. I have been searching for a quantity. I found a link in the forums that inidcated 7.75 Oz total oil for the system. Is that the correct total ammount for this system?
W126 manual stated to put 120CC or roughly 4OZ in the compressor.
I will then need to distribute the rest of the oil to the Evaporator, Condensor and Receiver/Dryer.

Does the total of 7.75OZ sound correct. The info is from a Napa Cooling Belts and hoses catalog Found the link in the forum and also googled it. http://www.napabeltshose.com/downloads/download_common.cfm?file=NapaCapacityGuide2-8-05.pdf&folder=news&view=napa_hc

Thanks!

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1989 300SE - Siegfried
2010 Toyota Tundra Crewmax
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2001 F150 Supercrew - The Screw
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  #2  
Old 07-15-2011, 12:09 PM
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Yes, sounds fine. I usually do 8oz as I spill some and a bit is always left in the container.

Make sure the aux fan(s) work...
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'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

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  #3  
Old 07-15-2011, 01:40 PM
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Join Date: Jun 2009
Location: Eastern Washington State
Posts: 50
Thanks Hitman

Thanks, Forgot to mention the new aux fan I am installing as well. The old one had a bad bearing. Got the ACM from Phil. Also gives me the opportunity to clean all the dead bugs out from between the fan and the Condensor.

Coincidently the summer we are having so far is very cool. LOL Would be the year I choose to dump $$ into the AC!
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Current
1989 300SE - Siegfried
2010 Toyota Tundra Crewmax
2005 Honda CRV

Gone but not forgotten
2001 F150 Supercrew - The Screw
1966 Ford LTD 390 - The Big G!
1995 Mercury sable
1986 Subaru DL
1982 Ford EXP - my first car
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  #4  
Old 07-16-2011, 07:59 AM
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I LOVE BRUNETTES
 
Join Date: Sep 2004
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Posts: 9,087
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Since the system is open, I would just remove the condenser so you can REALLY clean it. I blast them out from the radiator side with a pressure washer.

Pick up a comb too, they are about $6 at Harbor Freight. Straighten the fins after you spend a few hours picking the bugs and rocks out. This is by far one of the most tedious operations I have ever performed.

The time spent is worth it.

OH - Buy a can of this for the car too. Helps clean out the evap core without removal.

https://www.ackits.com/pc/6984TSI/coretreatment/6984TSI+-+Evaporator+Odor+Eliminator

__________________
I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.
[/IMG]
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