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      02-08-2013, 12:27 PM   #2
Tom K.
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Drives: '07 328iT, '13 Boxster
Join Date: Mar 2008
Location: Maryland

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Thermostats are designed to fail in the open position, meaning that the car would be very, very slow to warm up. You can tell by the lack of hot air thru the heater in cold weather.

Tom