Hi vw754
Do you mean when the car takes off and reaches between 5-10mph the doors atomaticly lock?IF so it was done at the dealership for me, i couldnt find a way to do so myself....mine dose this as it is handy for the kids, but i had to turn the child lock on as well because those pescy kids found out that if, even with auto locking if they pulled the handle twice it opened the door.Suppose its main function is to stop jacking at the lights i.e entry from the outside.
Hope u get this sorted and let me know if u found a workaround other than the Audi/vag.
Cheers J