A/C dryer

grannyknot · 12-07-2022, 07:20 AM

As part of the rebuild I had the A/C system evacuated, I've changed all of the seals and am now re assembling.
The new dryer is still sealed up and I won't be able to get the car to the garage for a recharge until spring.
So the question is can I go ahead and remove the seals and hook up the A/C lines to it or should I wait until just before it goes for a recharge?
Thanks

Rafichicago · 12-07-2022, 02:26 PM

I am not mechanic but The way I understand this system works I wouldn't do it. When you recharge system machine creates vacuum, before filling it up with refrigerant. Dryer is highly moisture absorbent so I understand it would draw moisture from the inside of the system that hasn't been vacuumed out.

grannyknot · 12-07-2022, 03:09 PM

Quote:

Originally Posted by Rafichicago

I am not mechanic but The way I understand this system works I wouldn't do it. When you recharge system machine creates vacuum, before filling it up with refrigerant. Dryer is highly moisture absorbent so I understand it would draw moisture from the inside of the system that hasn't been vacuumed out.

Yeah, that makes sense, thanks.

MarinerZ4C · 12-11-2022, 08:59 PM

Good call. That's the way I'd do it.

12-07-2022, 07:20 AM	#1
grannyknot Captain 952 Rep 781 Posts Drives: 2008 Z4M coupe Join Date: Oct 2021 Location: toronto iTrader: (0)	A/C dryer As part of the rebuild I had the A/C system evacuated, I've changed all of the seals and am now re assembling. The new dryer is still sealed up and I won't be able to get the car to the garage for a recharge until spring. So the question is can I go ahead and remove the seals and hook up the A/C lines to it or should I wait until just before it goes for a recharge? Thanks __________________ 2008 E86 M coupe
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12-07-2022, 02:26 PM	#2
Rafichicago Lieutenant 699 Rep 598 Posts Drives: 2018 M5 2009 E63AMG Wagon Join Date: May 2022 Location: Chicago IL iTrader: (0)	I am not mechanic but The way I understand this system works I wouldn't do it. When you recharge system machine creates vacuum, before filling it up with refrigerant. Dryer is highly moisture absorbent so I understand it would draw moisture from the inside of the system that hasn't been vacuumed out.
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12-11-2022, 08:59 PM	#4
MarinerZ4C Enlisted Member 43 Rep 47 Posts Drives: 2006 BMW Z4 3.0Si Coupe Join Date: Mar 2021 Location: Minnesota iTrader: (0)	Good call. That's the way I'd do it. __________________ *Mariner Z4C* 2006 Z4 Coupe 3.0Si, Montego Blue, MT 2008 128i Convertible (sold) 2005 325xi Sedan (sold)
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