car isn't stopped like it should

hello.

follow our instructions below you can replace the brake pads by yourself.

check our link below how to replace front pads and discs.

https://www.2carpros.com/articles/how-to-replace-front-brake-pads-and-rotors-fwd

Check the video below, its for VW by the brake system is similar to fiat stilo that can help.

https://youtu.be/gwXBpIlxYuc

Check the diagrams below step by step how to replace front pads and discs specific to your vehicle .

hope these helps

thank you.