Turbo position sensor Q? 2004 jetta

I have 2004 1.9 PD TDI 110,000 KM that has registered the P2564 code on my code reader . I have read through most of the forms and see it relates to the
N75 sensor . However I have a few questions for the group .

1/ does any one have a photo of the location ?
2/ I have only been able to source at a dealer $133.00 ? no after market ?

Seeing as it is apart of the turbo / intercooler system . I have noticed that my intercooler has extra oil flow . Which I feel may have contributed to the issue with the sensor ? as it is looped via air tubes tot he intercooler . This extra oil build up is in my feeling due to driving to low in the RPM range on shifting .

3/ Can this sensor/vir valve on the 2004 1.9 be soaked and cleaned out
or is replacement the only option .

Thanks for your help

It's actually the smart actuator G500 that is causing the code. Often it is just the wiring that develops a high resistance at/near the connector. Pull the belly pan and check that connection out.

Search function is your friend

http://forums.tdiclub.com/showthread.php?t=202923&highlight=p2564