C-Class (W204) 2008 - 2014: C180K, C200K, C230, C280, C300, C350, C200CDI, C220CDI, C320CDI

P0116 and P0117 Error codes. Gauge stuck at zero. Fan is unbearably loud at start

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Old Jul 5, 2020 | 10:53 AM
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Mzuddin's Avatar
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2012 C250 Coupe CDI 1.8L
P0116 and P0117 Error codes. Gauge stuck at zero. Fan is unbearably loud at start

Been getting error codes of P0116 and P0117 (Engine Coolant Temperature Sensor 1 Circuit Low and Circuit Range/Performance). The gauge does not move at all and fan is loud as hell.

Really hoping that the problem is just a busted sensor and not the thermostat. Any information or recommendation will help.

Been looking all over the internet for it. If anyone has any information on where the coolant temperature sensor is it will be huge help.


my car is 2012 c250 coupe and vin is WDDGJ4HB3CF882524.



Last edited by Mzuddin; Jul 5, 2020 at 11:07 AM.
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Old Jul 5, 2020 | 01:45 PM
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From: Newcastle Upon Tyne
W204 C220CDI 2011

Item 146
From the VIN you have an M271 petrol engine. Not a CDI as in your signature...

Last edited by alecmascot; Jul 5, 2020 at 01:49 PM.
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