I have a few little scratches and knicks, the scratch you can't even feel with a finger nail. However i do have a pair of nice knicks that are down into the white undercoat and are about the size of a finger nail cliping. What should i do to repair this?
The small scratches that are not through the paint you can buff out with a compound that is formulated to remove scratches. Then put another coat of sealer and wax over it.
The scratches that are through the paint you will have to order a touch up kit through VW. Looking at your name I assume you have a United Gray GTI like myself. I will tell you right now it's tough trying to match up the metallic paint!