inspect them carefully. by using this method you can check and try to fix and clean them in the best possible way. if you suspect that you have got grease on them it can also be a good idea to clean them if the discs look good overall.
first, you should start by raising up your car with a floor jack and jack stands. if you do not have a floor jack you can check our review of the best floor jacks. by removing the tires you can inspect the disc a lot better to see if there is any damage to it.
. make sure that you check both front brake 