Found this on another tiguan site has anyone tried or heard of this or tried it out would be interested to know if it makes any difference i assume though its just for the Mk2
Haldex All-Wheel-Drive Adjust Traction
Reports indicate that changing this setting to ‘Increased Traction’ improves the handling and makes the car feel like a permanent AWD system.
Select AWD Control Unit
Acoustic Measure, Wiring Logic
Choose from ‘Standard, Increased Traction, Less Noise’