Thread: W126 viscus fan, how to test?
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Old 12-03-2011, 12:23 PM
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compu_85 compu_85 is offline
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Join Date: May 2008
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Quote:
Originally Posted by S124300 View Post
If it has factory a/c, the electric cooling fans are probably pressure switched from the a/c system rather than by engine temperature.
The fans have 2 speeds. Low speed is kicked on by the AC pressure, high speed by coolant temp.
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