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Old 01-22-2013, 06:50 PM   #30
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Join Date: Nov 2009
Location: Fairfax, VA USA
Posts: 22,832
My Ride: 330CiC, M5, X5, E93
Originally Posted by Sweetness View Post
In September it was reading 91 C. I'll try again when it gets above 20 degrees outside. Also, looked at the block heater post. Looks easy and affordable. I might do it.
Once the ambient temperature gets above about 70F, then a soft failed thermostat cannot really be detected.
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