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2008 Mercedes Benz 300 dashlight problem

Tiny
KEVIN LEDET
  • MEMBER
  • 2008 MERCEDES BENZ 300
  • 4.3L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 78,000 MILES
What causes a temperature symbol to blink on and off on a mercedes C300 2008. Also when it blinks on and off the AC blows warm air. Can u tell me what the cause on that? THANKS.
Tuesday, September 22nd, 2015 AT 12:25 PM

3 Replies

Tiny
MHPAUTOS
  • MECHANIC
  • 31,938 POSTS
There will be a problem with the cooling system and this needs looking at asap, some models will shut down the A/C when temp rises to high, the A/C when on creates a good deal of heat at the condenser that the cooling system also must deal with so if over heat is triggered the a/c will shut down to help cooling.
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Tuesday, September 22nd, 2015 AT 2:42 PM
Tiny
KEVIN LEDET
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  • 2 POSTS
The temperature light blinks on and off, But its not overheating. Could it be the Coolant temperature sensor.
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Tuesday, September 22nd, 2015 AT 9:27 PM
Tiny
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  • 31,938 POSTS
If the temp is stable, I would run a diagnostic scan to see if there are any codes and get the live data looked at to see if the sensor is activating to early.
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Wednesday, September 23rd, 2015 AT 12:49 AM

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