Octavia-II Face Lift  with Manual gearbox.

1.  How many Temperature Sensors have the 1.8 TSI / 2.0 TSI engines ?
( Both water and oil temperature sensors )

2.  And where are they located ?

I have found a "GREY" 2-pole sensor that sits on the thermostat housing,
but there should be at least a few more, as well as oil temperature sensor.

3.   What does the "GREY" sensor send signal to ?

 

 

Edited 11 January, 20224 yr by 2stroke

Grey one will be coolant temp to engine ECU.

What year is the car?

Oil temp sensor is combined with oil level sensor in bottom of sump.

2 hours ago, Wino said:

Grey one will be coolant temp to engine ECU.

What year is the car?

Oil temp sensor is combined with oil level sensor in bottom of sump.

Car is a 2012.

I have found the following on exploded views:

28 is known as radiator outlet coolant temperature sensor, and presumably has a major role in controlling rad fans. Also wires to engine ECU I think.  

Are you trying to solve a problem? Do you want detailed wiring info? If so your engine code will be needed.

1 hour ago, Wino said:

28 is known as radiator outlet coolant temperature sensor, and presumably has a major role in controlling rad fans.
Also wires to engine ECU I think.  

Are you trying to solve a problem ?
Do you want detailed wiring info ?
If so your engine code will be needed.

It all started a week ago when I experienced the heat in the car as unsatisfactory.
I then keyed out the oil temperature in the trip computer and then discover contradictory information about water temperature and oil temperature from the car.
In my opinion, the oil temperature should follow the water temperature somewhat.
But according to the trip computer, the engine has a very low oil temperature compared to what I am used to from other VAG cars I have had before.
So I suspect sensor error, the only question is which !?!?