2016 Skoda Octavia RS 162kW TSI NE 2.0 Litre Petrol

I suspect that the engine could also be known as 2.0 TSI EA888 / CHHB - 162 kW

My ODBII scanner shows error code "P0118 - Engine Coolant Temperature sensor 1 Circuit High".

Whilst the car is idling the ECT sits around 68C and briefly drops to -39C.

-39C is not what I expected to see on the first day of summer here, where the air temp is around 28C !!

Sometimes the heating comes on for a few seconds in the car.

I since found out from Skoda that the part no:- is 06A919501A {not in stock};

VW told me that the part number has been superseded by :- 05C919501. I found an OEM version.

Looking around on YouTube , I am confused as to where the sensor is:- with one video indicating there are 2 sensors.

Many videos show that there is quite a disassembly effort required to access the sensor. I think I have found the sensor

directly with relatively easy access directly behind the radiator [see pics].

I would appreciate if someone can confirm this, before the result is worse than what I have now.

Generally the temp sensor is located close to, if not directly screwed into the thermostat housing as this is the closet place to the engine. In your pic this sensor is someway from this point and wouldn't give an accurate reading plus it's only held in with a clip, temp senders are normally threaded connections. I'd suggest whipping the engine cover off and look for where the stat housing is and go from there. They are usually quite small phyiscally with either a blue or green electrical socket but can also be grey with a brass hex head.

Hope this helps

Steve

Edited 6 December, 20256 Dec by steveo82

The sensor shown in your photo - at the back of the radiator - is not the Engine Coolant Sensor. It is the Radiator Outlet Temperature Sensor.

The main Engine Coolant Temperature Sensor is normally mounted to the cylinder head or thermostat housing. I would expect cylinder head. Mine is at the back of cylinder head but I don't have same engine as you. Do some research for location and look at suppliers for what it will look like. Good Luck.

I'm seeing a different part number for the coolant temperature sensor in the engine, and a different appearance.

Not sure where it's found though: