Radiator Cooling Fan runs constantly soon as engine started and goes to idle.
Asked by Flgatorfan Aug 03, 2014 at 01:56 PM about the 2002 Mercedes-Benz SLK 320
Question type: Maintenance & Repair
Checked the Temperature Sending Unit by unpluging the TSU and no change! Also, removed TSU and checked visually which told me nothing. If the TSU was open, would I be seeing the same problem??
4 Answers
Is your ac on? If so they should be running all the time at idle.
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Best Answer
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Check your fan relay. Sounds like the contacts might be stuck.
Flgatorfan answered 10 years ago
Don't think it has a relay! Direct input to Cooling Fan is from a Control Module.
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