Like Matt says you can change the resistant settings for the power steering.
Where abouts in VCDS is this setting??
Try this:
[Select]
[44 - Steering Assist] (from Chassis tab)
[Recode - 07]
Take note of the value which is in the form 0001x1 where x is the weight setting, eg 000121
If x is set to 1, it will be very light, if it is set to 5 it will be heavy
Replace the number with the required weight, eg 000151