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      02-23-2018, 07:54 PM   #2
MichaelSNU
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United_States
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Drives: 2006 X3; 2016 Volvo XC60 T5
Join Date: Aug 2009
Location: Berlin, CT

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The same exact thing is happening to my wife's 2006 X3 with 141,000 miles... The BMW tech believes it is the "IHKA heater valve." I am not sure if this helps or is applicable to your issue.
Appreciate 0