Hi all..
Just to confirm this, If i'm changing my rotors and pads (not brake lines), i don't have to bleed the brake fluid right? You only do that when you're changing the brake lines right?

 

I didnt when I changed mine out.

 

The brake fluid does not need to be changed when changing rotors and/or pads. However, sometimes people choose to flush out the brake fluid and put new fluid in there because overtime the fluid breaks down from repeated use, repeated heating up and cooling down, and eventually a small amount of water/condensation gets into the fluid reducing the efficiency.

 

You only need to bleed the lines when you allow air to enter the brake system. An example would be disconnecting the brake line from the caliper.

So you do not need to bleed the lines.