How easy is it to remove a audi a3 58 reg s line front bumper to get the head lights out ? I'm not very tech minded and don't wanna pull the bumper off to not get it back on but I need to replay a light I can't get to. Dose the whole bumper have to come off? Any advice would be greatfull ie an step by step and where and how many nuts and bolts ect. Thanks again