I dont know what the right terminology is but its like when you hit the front part of your bumper to a curb and you when you pull back in reverse the front bumper touches the curb and kind of scratches the surface of the plastic bumper underneath and another spot is when my mother took her luggage out of my trunk it dragged and hit the top of the rear bumper.

its not a deep scratch but i thought of buffing it down or filing it down and touch up paint.

what do you guys recommend?

 

medium abrasive compound and a electric pollisher should do. if your experienced enough use a rotary detailer.

 

Try posting this in the Wash and Wax section. I think you'll get more help there. Some pretty knowledgable people can help you. Good luck.