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      08-28-2012, 01:33 PM   #3
M3PO
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Drives: '08 IB E92
Join Date: Sep 2011
Location: OC

iTrader: (7)

If you smell anti-freeze, it may be that the coolant system is overfilled and the overflow bottle is overflowing on particularly hot days (when coolant temps are the highest and the coolant expands the most).

I've never heard a hissing sound after using my AC.
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