HVAC problem - Mercedes-Benz Forum
 
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post #1 of 2 (permalink) Old 06-09-2019, 02:13 PM Thread Starter
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Date registered: Jun 2014
Vehicle: 2004 S500, 1999 C280
Location: Columbia MO
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HVAC problem

Blower motor started going to full speed and back to normal. Then went to full speed and runs even with key off and out of car. Also radio started cutting in and out at the same time. Any ideas?
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post #2 of 2 (permalink) Old 06-12-2019, 08:16 PM Thread Starter
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Date registered: Jun 2014
Vehicle: 2004 S500, 1999 C280
Location: Columbia MO
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Found it , Shorted blower regulator. Why it's powered with key off is beyond me!
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