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Old 09-12-2012, 03:06 AM
ah-kay ah-kay is online now
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Join Date: Mar 2009
Location: San Diego
Posts: 3,597
Question R4 compressor - what would you do if you were in my shoes?

The old compressor in the 83 300D was giving a high pitch squealing noise when it was on. So I bought a re-manufactured unit from eBay and installed it myself. I don't know who designed the R4! I tried to put 8 oz of ester oil in but it all drained out during installation. What a waste of time and money. Anyway, I changed out the recv/drier, charged 8oz of ester oil which comes in a pressured can then 3x12oz can of R134. Everything work as expected and now I have A/C.

However, the 'new' reman compressor is quite noisy to my liking. I called the seller and he asked me to send it back and he will replace it. What shall I do?

1) I have no R134 recovery machine so I have to vent it to the atmosphere.
2) R&R the compressor again is not something I would like to do.
3) The compressor is noisy and I do not know how long it will last.
4) It is going to cost me $20 shipping, 3 cans of R134, 8oz of ester oil. Probably $70 total. Assuming I keep the recv/drier which is new.

What would be your recommendation? Leave it the way it is?
__________________
Not MBZ nor A/C trained professional but a die-hard DIY and green engineer. Use the info at your own peril. Picked up 2 Infractions because of disagreements. NOW reversed.

W124 Keyless remote, PM for details. http://www.peachparts.com/shopforum/mercedes-used-parts-sale-wanted/334620-fs-w124-chasis-keyless-remote-%2450-shipped.html

1 X 2006 CDI
1 x 87 300SDL
1 x 87 300D
1 x 87 300TDT wagon
1 x 83 300D
1 x 84 190D ( 5 sp ) - All R134 converted + keyless entry.
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