I tried to code my Xenon led lights for my Golf State (variant), but they did not work, no matter how I coded them the leds wont come on, so I checked them compared to regular Xenon lights and the connector in the harness is different. Golfs are wired the same but the Golf State has a different harness, and thus cables that go into the housing.
Since I have the tools Ill find out the Voltages and pins that need to be changed in order to make them work, Ill put a DIY in case someone want to change theirs to led versions and avoid getting errors on the vcds and a non working leds.
(even the kufatec guys state that the adapter they sell are not compatible with GS ... ;-(