I'm not modding, I'm improving
Minor dints, dent remover (shop around as prices vary massively).
Scratches wise, depends on what you are trying to achieve. If the car needs a good polish (spider webbing and hologramming in the sun) then find a detailer near you that has experience with VAG cars as the paint work is uber hard.
If there are just a few smaller ones that you want to get rid of, something like Meguiars Scratch X will do you well, but use it in small amounts and carefully as it can be quite abrasive.