P2185 engine coolant temp sensor 2 location?

[n88yem3]

Hi everyone, I have a 2017 vw transporter 75 KW / 101 BHP.
Engine management code I have is P2185 engine coolant temp sensor 2. The fan runs continuously.
From the description I assume it’s mounted on the engine somewhere, for the life of me I can’t find the location!
I have replaced the coolant temperature sensor on the bottom of the radiator and another that is mounted on a hose coming out of the radiator.
I have attached a picture of the sensor I am trying to locate and this part has been confirmed with vw with my reg and it’s for my vehicle.
I have also read online it’s location may be near the thermostat housing, again where is the thermostat housing?
Any help will be much appreciated.

 

[manfrotto]

Did you check the wiring to the bottom Temperature Sensor ? Apparently quite a common fault.

 

[mmi]

VCDS states:
P2185 - Engine Coolant Temp Sensor on Radiator Outlet (G83)

Circuit high suggests a likely wiring issue. What does the sensor data read - probably +215 C?

 

[mmi]

B

Post in thread 'Engine Check Light - T6 2018'

26 Sep 2024

**SOLVED** DTC P2185

It was a frayed wire going into G83 Temperature Sensor.

The wire hadn’t snapped and was still attached but must have been shorting. I put some insulation tape round it and put it back together and all good so far.

The fan is not coming on now from cold and the start stop on the engine works now with no errors.

• Boshthebutcher

• 

 

[n88yem3]

Did you check the wiring to the bottom Temperature Sensor ? Apparently quite a common fault.

I haven’t had a deep inspection so to speak, because when I remove the plug to replace the sensor there wasn’t and visible corrosion or damage for me to inspect further, but I will take it off over the weekend and maybe check it properly.
Thank you .

 

[n88yem3]

B

Post in thread 'Engine Check Light - T6 2018'

26 Sep 2024

**SOLVED** DTC P2185

It was a frayed wire going into G83 Temperature Sensor.

The wire hadn’t snapped and was still attached but must have been shorting. I put some insulation tape round it and put it back together and all good so far.

The fan is not coming on now from cold and the start stop on the engine works now with no errors.

• Boshthebutcher

• 

Thanks for this, I will look at the wiring over the weekend, will update accordingly.

 

[n88yem3]

VCDS states:
P2185 - Engine Coolant Temp Sensor on Radiator Outlet (G83)

Circuit high suggests a likely wiring issue. What does the sensor data read - probably +215 C?

Need to connect back the date reader and check this will confirm over the weekend.
Thank you.