Hello,
Due to the huge number of vehicles and part number Volkswagen AG produces, it is rather difficult to know what parts will work with what vehicle with out more information about the vehicle in question.
Typically you can not change the part numbers unless the manufacture's parts catalog says so.
So, a bit more information would be helpful, please post up an
Auto-Scan and the complete part numbers of the window motors in question.
Thank you,
drpeter