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Old 06-19-2010, 07:52 PM
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Join Date: Jun 2010
Posts: 2
97 c230 rad fan runs all the time

Radiator fan runs all the time key on or off,have to unplug to stop.Also the low coolant light on and a/c compressor runs for a minute or two then stops and wont run again untill car is stoped for awhile,Do these symptoms go together or just a bunch of single problems and also I just came into possesion of this car,Thanks for reading and any help

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Old 06-21-2010, 08:22 AM
Join Date: Mar 1999
Location: Tucker, Ga USA
Posts: 12,153
Since the fan runs with key OFF, the fan control module must be to blame.

Located behind the left front tire on the frame rail.
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Old 06-21-2010, 08:43 PM
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Join Date: Jun 2010
Posts: 2

thank you , I replaced the controller and that fixed all three problems.This is a very valuable tool for the mercedes owner

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