Engine light On : "Engine Coolant Temp Sensor on Radiator Outlet (G83)"

[Jey]

Hi,

I have a Caravelle T6 150hp diesel, 4 motion, from September 2016. 354 000 Km today.

Yesterday evening, the engine light lighted ON on the dashboard.
I have read default from my phone (it was a "coolant sensor" problem). Then I cleared defaults.

Then when I came back home, the light came back ON.

This morning, I used VCDS to read the list:

1 Fault Found:

16106 - Engine Coolant Temp Sensor on Radiator Outlet (G83)
P2185 00 [10101100] - Signal too High
MIL ON - Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Priority: 2
Fault Frequency: 13
Mileage: 354126 km
Date: 2098.01.12
Time: 20:35:39

Engine speed: 1178.75 /min
Normed load value: 0.0 %
Vehicle speed: 25 km/h
Coolant temperature: 87 °C
Intake air temperature: -12 °C
Ambient air pressure: 940 mbar
Voltage terminal 30: 14.375 V
Unlearning counter according OBD: 40
Air mass at air mass meter 1: 57.6 kg/h
Mass airflow sensor 1 bank 1 airflow: raw value: 418.2 mg/stroke
Accelerator pedal travel: raw value: 0.00 %
Outside temperature sensor 1: B1: raw value: -16.5 °C
Coolant fan 1: activation: 10.00 %
Coolant fan 2: activation: 0.00 %
Fuel temperature sensor 1: B1: raw value: 28.2 °C
Coolant temperature sensor 1: B1: on radiator output: raw value: -40.0 °C
Exh. gas recirc. 1 bank 1: act.temp. of water upst. of radiator: 0.0 °C
Fuel consumption: 1.10 l/h
Engine oil temperature: 105.1 °C

Please, do you have any idea?
I used my Caravelle everyday for my work (tourism with clients). I hope it's not a big problem...

 

[n10n]

From your freeze frame: Coolant temperature sensor 1: B1: on radiator output: raw value: -40.0 °C

Could be the sensor or wiring. This is from my 204 engine but most likely it’s the same, G83 sensor is located under the radiator and very visible from underneath once the engine bottom cover (if you have one) is removed.

 

[Jey]

Thanks !

I will inform you soon how we managed.