How to Change Brake Pads

By eHow Cars Editor

Rate: (19 Ratings)

Beyond the general maintenance cars require such as oil changes and tune-ups, one of the most common parts that wear out are brake pads. If you do a lot of stop-and-go driving, for instance, you know how often you need to change your brake pads. Changing brake pads can be a bit tricky, but it's possible once you get the hang of it.

Instructions

Difficulty: Moderately Challenging

Things You’ll Need:

Step1
Loosen the lug nuts on both front wheels. Jack the front of the car up and lower onto jack stands. Put the emergency brake on and place 4-by-4 inch wooden blocks behind the rear wheels to keep the car from rolling back while jacked up.
Step2
Remove the front wheels to expose the brake assembly on each side of the vehicle.
Step3
Unbolt the mounting bolts holding the caliper and brake pads onto the rotor. Slip the caliper off the rotor. Remove bolts and/or clips—some brake assemblies have one or the other, some have both—attaching the brake pads to the caliper.
Step4
Return the piston in the caliper to the fully-open position. Use a C-clamp or vise grip. As the brake pad wore, the piston moved closer and closer to the rotor. With new brake pads, this piston must be opened all the way before the new pads can be installed.
Step5
Apply grease to the backs of the new brake pads and assemble brakes in the reverse order you took them apart. Repeat the process for the other side of the vehicle.

Tips & Warnings

  • Always change the brake pads on both sides of the car, even if one side doesn't seem as worn as the other.
  • Remove old brake pads and bring them with you to purchase new ones to ensure you are buying the correct brake pads.
  • Inspect the rotor while you have the brake assembly disassembled. If worn, you can choose to either have them cut down or replaced.
  • Don't apply grease to the front of the brake pads, the part that comes into contact with the rotor.
  • Be careful when removing caliper not to break or bend the brake fluid line attached to the caliper.
  • Test the brakes when finished installing new brake pads. Sometimes air can get into the brake lines. Pump them several times until you feel them "grab." You may have to drain the brake fluid and replace before driving the car.

Comments

| View All Comments
Flag This Comment

on 9/6/2008 Just a little note...brake pads aren't attached to the caliper, they are attached to the caliper bracket. What do you have to do to become an eHow Cars Editor?! Own a car? Is that it? Seems like it. Most of the car repair articles by the eHow Cars Editor have something wrong in them. This can be something with very little influence, or it could get you or someone else hurt. Also, you can't always use a C-clamp on the inside of the piston to push it in. Some car manufacturers use materials that will crack or shatter if you do this, then you'll need a new set of calipers. You can place an old pad back in the caliper and use a C-clamp to push the old pad against the piston to push it back in however. More bad advise! This is the third article out of four that I have reviewed by the eHow Cars Editor that has mistakes in it. Any chance I can become a cars editor??

heliskiier

heliskiier said

Flag This Comment

on 6/13/2008 The only time you'll need to bleed the lines is if you get finished and you can't get the pedal back to firm. No need to do it if everything comes out OK (95% of the time). Let's put those brake guys out of business. Oh and Rotor installation is just as easy as pads if you need new ones!

heliskiier

heliskiier said

Flag This Comment

on 6/13/2008 Something to add. When you squeeze the calipers to make room for the new pads you need to take off the top of the fluid container under the hood, because you'll force fluid back in there. ALSO, VERY IMPORTANT. PUMP THOSE BRAKES UNTIL YOUR PEDAL COMES BACK FIRM BEFORE DRIVING OR YOU'LL HIT SOMETHING IF YOU DON'T. Brake pads are usually very easy to do yourself and you'll save yourself hundreds. I did my Saab pads in 35 minutes. ALWAYS USE JACKSTANDS TOO!

poster

poster said

Flag This Comment

on 11/28/2007 bleeding the break line gets out the air. If you get a bleeder kit you attach it to the valve by the break line and pump the breaks. When you push the piston back it can get air into the line. if you take off the lid to your break fluid resivor the air can escape there. Bleeding usually has to be done.

Post a Comment

POST A COMMENT

Request a New How-To Article

Looking for more How To information? Chances are there’s an eHow member who knows how to do what you’re looking to do. Submit an article request now!

eHow Article: How to Change Brake Pads

eHow Cars Editor

eHow Cars Editor

Category: Cars

Articles: See my other articles

Related Ads