Hello! This page is devoted to doing the REAR disc brakes on a 2002-2005 Hyundai Sonata, but it’s the same general idea for any disc-brake setup.
Disc Brakes are pretty easy, as long as you have the right tools, and take your time!
First you'll need some PB Blaster or other penetrating oil. This breaks the rust/corrosion off and lets you crack the bolts free without breaking them off. You'll also need a silicone grease or anti seize for the caliper bolts, pins, and new pads. You'll need a caliper compression tool, or a sturdy C-clamp, and a can of brake parts cleaner.
Brake dust is extremely hazardous to your help, I recommend washing down the oil brake parts before dismantling anything, to keep the dust from getting in your lungs.
Step 1: How-To Rear Disc Brake Job
Let's Get Started!
1) Jack up the car, put it on a jackstand, and remove the wheel. (Release e-brake)
2) Stare at the brakes a while, get familiar with the parts.
3) Spray the PB Blaster on the two caliper bolts (back of caliper, top and bottom) and the two Bracket Bolts (back of bracket) Both are 14mm for the sonata. Let that stuff sit for 10 minutes or so.
4) Unbolt the Caliper, and tie a bungee cord around it to the upper A-Arm or another sturdy piece of metal. (Make sure it doesn't pull on or put stress on the brake line!)5) Unbolt the Pad Holder, and remove the old pads. Make sure the new pads are the same size and shape as the old ones.
6) Check the rotors to make sure they're the same as well. Parts store employees sometimes mess up…