Hi!
Here are some details, as I said...
The same issue was fixed on an Audi S3 by replacing part number 06A 919 529 B.
This is another temp sensor (than the one we know - 059 919 501 A) and is located on the turbo "housing".
Full of hope, my dealer ordered it for a FR with the same
problem, but they did not physically find it on the car...
Problem seems to be: although listed in ETKA also as part for SEAT 180hp engines (AUQ, in our case), it seems that only 210hp (AMK, APY) and 225hp (BAM) engines are equipped with this sensor.
Also, the sensor does not appear in the electrical scheme of the AUQ.
Further research is undergoing...
If you also have details (from the dealer or whatever) please post them!