E-Class (W212) 2010 - 2016: E 350, E 550
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climate control works intermittently

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Old Feb 4, 2015 | 07:52 PM
  #1  
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2010 E550
climate control works intermittently

Hi,
I have a 2010 E550 and it has 85000 Kms. Since yesterday, I have been observing issues with the Climate control.

In the morning, when I first started the car and drove a bit , the climate control (in Auto) kicked in and blew warm air till the set temperature was achieved . Then I turned my car off for 5 mins as I dropped my kid at the school. When I turned the car on and drove a bit, the system did not kick in although it was getting cooler inside the vehicle.

Eventually the windows started to fog up and I tried to hit the front window defrost but nothing happened. I turned the system off but to no avail.

This evening same thing happened.

Works fine when car starts after a long hiatus but if it is turned off and started after a few minutes, the climate control does not respond.

What could be the issue? Any ideas?

TIA
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Old Feb 5, 2015 | 09:25 AM
  #2  
Sean1234's Avatar
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2010 E550 4Matic, P1, P2
Could be something with the thermostat. I've had similar issues before on other non-benz cars and it ends up being something with the thermostat. I would book it in and have it looked at

Let us know what you find out
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Old Dec 19, 2019 | 12:30 PM
  #3  
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2013 S212 Sport Package
Old thread, exact same issue, did the thermostat fix it?

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Old Dec 19, 2019 | 01:48 PM
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1922 Ford Model T / no OBD
Do the troubleshooting.
W212 needs a scanner to read codes and values, but this old help will give you idea what to look for. http://www.mercedesmedic.com/ac-air-...le-codes-list/
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Old Dec 19, 2019 | 01:49 PM
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2016 E350 Sport; Mom Wrecked the 2008 E350; sold the 2002 C320
If absolutely nothing happens, I would first check the blower motor. They are known to fail.
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Old Dec 19, 2019 | 03:21 PM
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2008 E350 4Matic, 2011 E350 4matic
Or blend valve or maybe one of the temperature sensors is bad. As others said, only way to find out is to get the car scanned.
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