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Old 09-03-2001, 06:54 PM
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MBenzNL MBenzNL is offline
Join Date: Jan 2001
Location: the Netherlands
Posts: 1,417
The fans are controlled by the airco gas pressure and engine temperature. One of the wires is connected to the dash cluster (engine temp./I have to look up what color and what pin) and once you have that wire disconnected, the fans will run whenever the key is turned into ignition.

1990 300SL-24
1993 C250D
with a minor 600+k kilometer
(the Netherlands)
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