I have Xenons that light up the lower white indicator as parking lights:
I bought the new Led ones:
To use them you need to have the Cecm ( vcds 09) software version 0575 or superior to code them properly.
You need to set up as day running lights and change bit 18 to a value 04 MANUALLY.
Then they will light up.
Unfortunately My Software version is 501 so I am out of luck, Ill try to go to the VW dealership and ask if they can REFLASH the newer version.
The connectors are the same, but the coding and poper use needs a Cecm Highline with said version.
Cheers