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P2237 Error Code

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Old Jan 23, 2020 | 02:38 PM
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2010 c63 AMG
P2237 Error Code
Oil won’t reach operating temperatures and fan is on full blast. I know it’s something electrical, just need to be pointed in the right direction.



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Old Jan 23, 2020 | 02:42 PM
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2005 E55
Coolant temp sensor
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Old Jan 23, 2020 | 02:47 PM
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Originally Posted by skratch77
Coolant temp sensor
difficult task?
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Old Jan 23, 2020 | 03:06 PM
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2010 C63 AMG
Thermostat more than likely.
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Old Jan 23, 2020 | 03:22 PM
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Originally Posted by deadlyvt
Thermostat more than likely.
man I just had my thermostat replaced last year around this time.. are they that fragile? 🤦🏽‍♂️
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Old Jan 23, 2020 | 03:38 PM
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They’re not.

I tend to also believe that a bad temp sensor is the only thing that will both give you zero temp reading and put the fan on full as a fail-safe default.
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Old Jan 23, 2020 | 05:10 PM
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Didn’t read the fan on full. yes you are right if the fan was not coming on I would say thermostat
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Old Jan 23, 2020 | 05:18 PM
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I appreciate the responses.. I’ll get back under the hood and see what’s up
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Old Jan 24, 2020 | 04:33 AM
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So I went and located the sensor. It’s not in the most “accessible” location. Not sure if by me tapping on the sensor or by playing with the wiring.. the fan stopped. May be a faulty wire/sensor, but the error is no longer current. The headache is def not over
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