1.8T , Engine can't maintain normal operating temperature.... ?

[2stroke]

I have a problem, my 1.8T can't maintain normal operating temperature during normal winter temperatures.

I have changed the following parts 3 !!! times, but no difference.
* Thermostat
* Sensor G62
* Sensor G2

What could be wrong when the engine is unable to maintain normal operating temperature ?
( ....bad Thermostat you think, but since I have changed it 3 times I have ruled that out )
I have also logged the oil temperature with VCDS and I also think it is too low ( which also indicates that the cooling water in the oil cooler has too low temperature )
There are no error codes.
No leaks.


HELP !!

 

[Garrett 69]

What are the temperatures?

 

[Thechenga]

Usually unable to heat up is the T-stat stuck open, overheat could be T-stat not opening.
What brand part did you fit? I know many new aftermarket replacement parts can be faulty.

Did you sort this out already? Good to hear the outcome if so.

 

[2stroke]

Usually unable to heat up is the T-stat stuck open.
What brand part did you fit ?
I know many new aftermarket replacement parts can be faulty.
Did you sort this out already ?
Good to hear the outcome if so.

Engine is still running to cold, but since I have changed the T-stat 3 times I have ruled T-stat out.
AUDI OEM part.
No, I have not been able to sort this out, still having the same problem

 

[Thechenga]

Engine is running to cold but since I have changed the T-stat 3 times I have ruled that out.
AUDI OEM part.
No, I have not been able to sort this out, still having the same problem

Sorry to hear, that would be frustrating. Are the sensors genuine too?
Have you tried scanning car for any codes?
Do you hear/see both fans running on full?

 

[2stroke]

Sorry to hear, that would be frustrating.
Are the sensors genuine too ?
Have you tried scanning car for any codes ?
Do you hear/see both fans running on full ?

Yes, the sensors are also AUDI Genuine.
Yes, I have scanned the car with VCDS and I have no codes.
My car does just have 1 fan and it is not running during winter.
....Only when ACC is on during summer to get cold air inside.