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Old 06-22-2010, 05:03 PM
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Fans

Just one more stupid question. '91 420SEL. So whats the deal with an engine driven mechanical fan and two electrics? Do these little V-8's really run that hot? Or, is this an example of an over engineered Teutonic synergestic hybrid cooling system? Radiator not big enough? Could one delete the mechanical fan for economy / power savings?

TIA Dave
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Old 06-24-2010, 02:51 PM
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Originally Posted by DAVECAD2.0 View Post
Just one more stupid question. '91 420SEL.
So whats the deal with an engine driven mechanical fan and two electrics?
Do these little V-8's really run that hot? Or, is this an example of an over engineered Teutonic synergistic hybrid cooling system?
Radiator not big enough?
Could one delete the mechanical fan for economy / power savings?

TIA Dave
It is an elegant graduated airflow demand system = it only supplies/uses what it needs.

You could delete the mechanical fan, however the economy / power gain is minimal, unless you are running pure race track.
IMO: Changing the system is not a good idea.
I am moving this to a forum that may have other opinions.
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