Gadgetory

today we're going to replace the brake pads and rotors on a 2007 Mazda 6 so these are the rotors right here this is the caliper and inside the calipers where the brake pads are and you can see on the rotor where the brake pads are kind of rubbing it down that's how we know we need new rotors on there so what I'm doing right now is while the tires on the ground I've loosened up all of these lug nuts just to break them loose and now I'm going to raise the car up off the ground loosen up the rest of lug nuts and take the tire off sometimes with these cars the tires get stuck on the rotors themselves so all the nuts are off and it's still not going to come loose you can take some of the PD blaster and then get it in between the rotor and the tire itself as well and let it sit for a couple minutes we're getting rid of odors anyway so it doesn't matter if the spray gets on and that's how you do it also I have the jack stand as well as the Jack supporting the car just kind of make sure that there's two things underneath it that we don't damage anything if something accidentally breaks so your brake pads are inside the caliper right here and you have to remove the caliper by taking off this bolt right here and another bolt that's down there at the bottom and they're both fourteen millimeters now that the caliper is off of the car you can just press the brake pads out of it there's going to be two of them and then there's the caliper itself with the piston now we're going to take off the rotor and you have two options one is you can take your screwdriver and unscrew both of these screws but the chances are they're going to be stuck and there's going to be no way to move them what we've done is we've taken a half inch drill bit and you're just going to drill out the screw on on both of them and I'll show you how that's done so if you look at the brake pads you can see that the old ones are a lot thinner than the new ones because all the pads are worn down so we have to do in order to make room for the new pads inside of the caliper we have to compress this little piston right here so how that's done is first of all we're going to go in here underneath the hood and pop the top off of this brake fluid container because as we compress the piston the brake fluid is going to rise up in the vehicle if your brake fluid is high already you're going to want to put some paper towels around it to catch the overflow so to compress this piston sometimes with other cars you'd use a c-clamp to just kind of press it in on both sides and just manhandle it this one you actually have to twist clockwise so what I found is best is just taking a pair of needlenose pliers put it in there on the little grooves and then just twist it like that and just go all the way down until it's flush with the other end of the caliper I'm just going to keep on doing that if you go counterclockwise you're actually going to unscrew the piston and that's actually a pretty big issue because then you'll have to bleed the brake system and everything so make sure you don't go counterclockwise just go clockwise so this bottom notch right there needs to be straight at the bottom because that's where this little circle pin goes and it'll just fit right inside there as we put the brake pads in okay so the new brake pads are in the caliper and one other thing is don't ever let the caliper just hang by itself because these brake lines if they ever snap off it's a pretty expensive repair to get those replaced so make sure that it's always supported either by a bungee cable or just resting on the frame of the vehicle we're going to go ahead and take the rotor stick it on it's a good idea to wipe that wipe it down before you install anything and then we're just going to slip the caliper on over the rotor itself now the caliper is on and those two 14 millimeter bolts are screwed in on the back of it rotors on and as soon as we get the tire in place these five lug nuts are going to hold the rotor into the car so you don't need to worry about those two little screws that we drilled out anyway I'm going to put the tire on gently screw on the lug nuts set the car down tighten the lug nuts all the way and then in the front of the car banette screw on that brake fluid cap again so one more thing these little pins right here when you take the brake pads out it's kind of kind of spread itself open when you put the new brake pads in you want to close it down so it's flat like you see right there and then the brake pads going to sit on top of it and the spring is just kind of kind of keep it in place so make sure you do that otherwise it's going to be spread open and you're going to try to push the brake pad in and it's not going to go in all the way and that is it make sure that before you start driving you're going to get in and you're going to tap the brake pedal a couple times that way it'll press the brake pads against the caliper because right now they're still uncompressed and so you want to make sure that the brakes are going to be responsive so pressing your brake pedal a couple times before you go anywhere anyway if any questions be sure to leave in the comments below don't forget to like if this video helped you and don't forget to subscribe thanks for watching