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Old 01-15-2013, 10:07 PM
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QSilver7 QSilver7 is offline
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Location: Northeast Indiana
Join Date: Aug 2008
Posts: 9,043
Mein Auto: 1997 740iL / 2006 X5 4.4
Originally Posted by bimmerworld View Post
This nozzle-like thing is attached to the radiator and when pushed (under the cap) it blows air. I guess this is used to remove air from the radiator. Is that correct? I tried it for 10-15 seconds and air kept going out. I guess I should continue until water comes out, right. Attachment 357816
I can't say for certain (due to you NOT having ANY information in a signature or listed as to WHICH of the 3 engines you may have on your 05 X5)...but I highly suggest NOT to keep releasing the "air" from that schrader valve.

More than likely, you are releasing the R-134A refrigerant from your AC system. Again, I can't say for certain since there's no car info to tell which engine you have and the pic is so close to the valve that I can't tell if it could be the high or the low side. Plus you say that it is running to your radiator? (why would your cooling system have that much air under should only contain coolant)

You'll definitely know this summer if you released your refrigerant if your AC will only pump out warm air.
Q {BMW CCA Member #191509}
2006 E53 X5 4.4i (Sterling Gray) 12/05 mfg date <<~>> 97 740iL (Arctic Silver) 3/97 mfg date
99 540iT (Orient Blue) <<~>> 95 525IT (Alpine White)
91 735iL (Schwarz Black) <<~>> 85 325e (Bronzit)

Last edited by QSilver7; 01-16-2013 at 02:22 PM.
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