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2014 E300 Fan / Coolant Temp issue

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Old Jul 5, 2021 | 10:18 AM
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2014 e300
2014 E300 Fan / Coolant Temp issue

Hi guys, long time lurker first time poster.

I've a query I’m wonder may someone assist with?

I’m driving a 2014 E300 AMG S, the other day I noticed the radiator fan is running on high straight away on start up. I drove for a few mins then returned the car home as fan continued to run which worried me.
I left it for a day and started it again this time fan was running on high again with a check engine light displayed. Few seconds later a red warning light for coolant temperature was displayed (showing +120c) immediately on start up. Coolant has just been topped up 2 weeks ago and upon inspection levels were still okay. I’m assuming some temperature sensor is failing and showing a high temp and automatically engaging the fan on start up. Car is going for a diagnostics today just wondering anyone have similar experiences?

thanks in advance - Alex
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Old Jul 6, 2021 | 03:19 PM
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2016 E350 Sport 2WD
Sure sounds like a faulty sensor or a corrupted circuit for the sensor. Make sure your battery is fully charged.
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