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      01-04-2013, 01:16 PM   #138
Aperture Vision
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Drives: 2006 e90 325i
Join Date: Jan 2013
Location: Virginia, USA

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Originally Posted by dhc905 View Post
Question - is it normal in a fully functioning e90 to have the heater on high and the tempreture change (drop) every so often? Is this a potential indication of a bad pump?
Drop as in the temperature gets colder? Or the with the fan on high, it sounds like the fan goes out for a moment and then comes back on? If its a temperature drop, it is most likely the t-stat acting up.