Question about 2004 Volkswagen GTI

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I can not compress the piston on the caliper to install new pads

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  • Master
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I have to use a large c-clamp to compress the piston. Keep it square and straight. Don't force it too hard, let the fluid flow back. Don't have the master too full, fluid's coming back. You may try opening the bleeder to release fluid.

Posted on Nov 27, 2008

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  • Master
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You need to open the bleeder screws on the caliper , it may need to be sprayed with wd-40 or some penitrating oil to get the scew loose so it don't break off in there , and if you pushed to hard on the piston already then you may need to replace the caliper , because it may leak fluid and pressure now , hopefully not!

electech

Posted on Nov 27, 2008

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  • Master
  • 1,586 Answers

You're working on the rear caliper, correct? Those don't compress - they screw in, and you need a specific tool for that. AutoZone rents them on their tool loan program. To use it, find the piston socket that best fits the caliper piston, and use that. Open the reservoir cap and screw the piston back in, reseal the reservoir, install your new pads, and you're good to go (be sure to bed the pads in).

If you're working on the front and can't compress it, loosen the reservoir cap to relieve the seal of the system and allow the fluid to move without fighting against pressure. Replace the cap after the pistons are retracted.

Posted on Nov 27, 2008

6 Suggested Answers

  • 1 Answer

SOURCE: I cannot compress the rear brake caliper piston to install new pa

In the back the caliper pistons actually have to be turned... you can either do it with something that can fit in the two v-shaped notches, or you can buy a tool from Autozone, etc. that will fit on a 3/8" drive ratchet to turn the piston back in.

I did this myself for the first time about 4 weeks ago. Confused me until I asked an Autozone employee.

Posted on Mar 27, 2009

AutoDoc
  • 169 Answers

SOURCE: 2006 Mustang rear break caliper piston will not compress

Hi Alberts73,
The caliper piston has to be turned clockwise as it is compressed. If not,it will not retract. This will allow the park brake to reset. If you have only pressed the caliper in with a "C" clamp,you may have damaged the mechanism inside the caliper. If this has happened,you will need to replace them.The OTC #206-026 is the tool for turning the caliper back into the bore. I hope this helps,if you need more information,drop me a line. Thanks,Chuck

Posted on Feb 08, 2010

roniecon
  • 6826 Answers

SOURCE: 2006 Kia Spectra 5 rear brake disc replacement

One side,turns right,and push in slightly,and the other side turns left,to retract.

Posted on Apr 20, 2010

  • 972 Answers

SOURCE: 2006 Kia Spectra 5 rear brake disc replacement

you need a special tool avalable at most parts stores. its a disc brake piston turning tool. you have to rotate piston clockwise while pushing in on piston. you can fabricate something that enguages the slots and push and turn till all the way in.make sure to note position of slots and put them in same place as was before or the pin on the pads wont enguage the slot

Posted on May 11, 2010

  • 271 Answers

SOURCE: how to compress rear brake caliper piston

Only way is to use diagnistic equipment.Go to HAND BRAKE . There is option to release the pistons.When you change the brake pads you have to use option - engage .

Posted on May 15, 2010

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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1 Answer

How do you compress the break caliper on a 2004 Kia sorento


IS THIS A REAR OR FRONT CALIPER?
1. FRONT CALIPER: INSERT A LARGE C CLAMP WITH THE SCREW END INTO OPEN BORE OF CALIPER PISTON, THE STATIONARY END SHOULD BE SNUG AGAINST THE CALIPER END HOUSING: THAT THE PISTON MOVES IN AND OUT OF
COMPRESS C-CLAMP UNTIL CALIPER PISTON SEATS FULLY AGAINST THE CALIPER SEAL. INSTALL NEW PADS
2. REAR CALIPER: RENT AT AUTOZONE A REAR DISC CALIPER COMPRESSION TOOL. THESE CALIPER PISTONS WIND IN CLOCKWISE, INSTEAD OF JUST SLIDING BACK INTO A SMOOTH BORE. THEY HAVE GROOVES THAT FOLLOW A MATCHING SET IN THE CALIPER HOUSING.
FURTHER QUESTIONS?....JLGPROP@YAHOO.COM

May 19, 2012 | 2004 Kia Sorento

1 Answer

Steps to replacing rear brake pads


A special tool is required to compress the caliper piston on the rear brakes-don't use a C-clamp on the piston.
Raise the vehicle and remove the tire. The rear calipers have only one guide pin. Remove this pin and raise the caliper. Remove the old brake pads. Using the special tool compress the caliper piston-the piston will have one or two slots on it. These slots must in the correct position to remount the caliper. Install the new brake pads and slide the caliper back over the rotor and replace the guide pin. If the caliper doesn't slide over the rotor you'll need to reset the slots on the piston. Replace the tires and you're ready to go.

Jan 01, 2011 | 2000 Buick LeSabre

1 Answer

Procedure for changing front and rear brake pads on a 2004 Amanti



Removal & Installation

  1. Before servicing the vehicle, refer to the Precautions Section.
  2. Remove or disconnect the following:

    Front wheel Caliper mounting bolt Suspend the caliper from a wire Pads from the caliper support Pad retainers, if necessary

To install:
  1. Install or connect the following:

    Pad retainers, if removed Pads onto the pad retainers
  2. Compress the caliper piston using a C-clamp. Rotate the caliper downward and install the mounting bolt. Tighten to 16-24 ft. lbs. (22-32 Nm).
  3. Install the wheel.



Removal & Installation

  1. Before servicing the vehicle, refer to the Precautions Section.
  2. Remove or disconnect the following:

    Rear wheel Caliper mounting bolt Suspend the caliper from a wire Pads from the caliper support Pad retainers, if necessary

To install:
  1. Install or connect the following:

    Pad retainers, if removed Pads onto the pad retainers
  2. Compress the caliper piston using a C-clamp. Rotate the caliper downward and install the mounting bolt. Tighten to 16-24 ft. lbs. (22-32 Nm).
  3. Install the wheel.

Dec 16, 2010 | 2004 Kia Amanti

1 Answer

Need help changing brake pads and routers on 2003


Remove brake fluid from the master cylinder brake fluid reservoir until the reservoir is approximately 1/2 full. Discard the removed fluid.
  1. Raise and safely support the front of the vehicle. Remove the front wheels.
    1. Remove or disconnect the following:
    2. Front brake caliper guide pin bolts
    • Brake caliper by slowly sliding it up and off the adapter and brake rotor. Support the caliper out of the way with a strong piece of wire. Do not let the caliper hang by the brake hose or damage to the brake hose will result.
    1. If necessary, compress the caliper piston into the bore using a C-clamp. Insert a suitable piece of wood between the C-clamp and caliper piston to protect the piston.
    2. Outboard disc brake pad from the caliper by prying the brake pad retaining clip over the raised area on the caliper. Slide the brake pad down and off the caliper.
    • Inboard disc brake pad from the caliper by pulling the brake pad away from the caliper piston until the retaining clip on the pad is free from the caliper piston cavity
  • To install:
    1. Be sure the caliper piston has been completely retracted into the piston bore of the caliper assembly. This is required when installing the brake caliper equipped with new brake pads.
    2. If equipped, remove the protective paper from the noise suppression gaskets on the new disc brake pads.
    3. Install or connect the following:
      • New inboard disc brake pad into the caliper piston by pressing the pad firmly into the cavity of the caliper piston. Be sure the new inboard brake pad is seated squarely against the face of the brake caliper piston.
      • Outboard disc brake pad by sliding it onto the caliper assembly
      • Brake caliper assembly over the brake rotor and onto the steering knuckle adapter
      • Caliper guide pin bolts and torque to: 35 ft. lbs. (47 Nm) on 2002–04 models or 26 ft. lbs. (35 Nm) on 2005 models
      • Front. Apply the brake pedal several times until a firm pedal is obtained.
    4. Check the fluid level in the master cylinder and add fluid as necessary. Road-test the vehicle.

    For the rotors:

    1. Remove brake fluid from the master cylinder brake fluid reservoir until the reservoir is approximately 1/2 full. Discard the removed fluid.
    2. Raise and safely support the front of the vehicle. Remove the front wheels.
    1. Remove or disconnect the following:
    2. Front brake caliper guide pin bolts
    • Brake caliper by slowly sliding it up and off the adapter and brake rotor. Support the caliper out of the way with a strong piece of wire. Do not let the caliper hang by the brake hose or damage to the brake hose will result.
    1. If necessary, compress the caliper piston into the bore using a C-clamp. Insert a suitable piece of wood between the C-clamp and caliper piston to protect the piston.
    2. Outboard disc brake pad from the caliper by prying the brake pad retaining clip over the raised area on the caliper. Slide the brake pad down and off the caliper.
    • Inboard disc brake pad from the caliper by pulling the brake pad away from the caliper piston until the retaining clip on the pad is free from the caliper piston cavity
  • To install:
    1. Be sure the caliper piston has been completely retracted into the piston bore of the caliper assembly. This is required when installing the brake caliper equipped with new brake pads.
    2. If equipped, remove the protective paper from the noise suppression gaskets on the new disc brake pads.
    3. Install or connect the following:
      • New inboard disc brake pad into the caliper piston by pressing the pad firmly into the cavity of the caliper piston. Be sure the new inboard brake pad is seated squarely against the face of the brake caliper piston.
      • Outboard disc brake pad by sliding it onto the caliper assembly
      • Brake caliper assembly over the brake rotor and onto the steering knuckle adapter
      • Caliper guide pin bolts and torque to: 35 ft. lbs. (47 Nm) on 2002–04 models or 26 ft. lbs. (35 Nm) on 2005 models
      • Front. Apply the brake pedal several times until a firm pedal is obtained.
    4. Check the fluid level in the master cylinder and add fluid as necessary. Road-test the vehicle.

    May 28, 2010 | 2003 Chrysler Town & Country

    1 Answer

    Cant get brakes back on my 1992 gmc jimmy I cant get them to line up and go on the rotor


    More than likely you have not fully compressed the caliper piston into the caliper. Take the old inner brake pad and clip it on back onto the piston. With a large clamp (one side on the back of the caliper behind the piston and the other on the face of the old brake pad) and compress the piton slowly by tightening the clamp. It needs to bottom out completely. Remove the clamp and old brake pad and install the new pads. Make sure that when you install the caliper to the rotor that the brake pads stay locked in position and it will slide over the rotors and fit snug.

    May 18, 2010 | 1992 GMC Jimmy

    3 Answers

    Compressing the rear disc brake caliper on 2008 grand caravan


    The rear calipers on these models require a special tool that compresses and turns the piston in at the same time -- most parts stores carry this tool.

    It is called a caliper piston press -- and it installs where the pads would go and acts like a c-clamp,when turning handle it will turn the caliper piston backinto the caliper as it compresses it.
    Anytime the brake rotor or brake pads are being replaced, the rear caliper piston must be seated (bottomed) to compensate for the new brake rotor or lining. Because the Parking Brake self-adjuster mechanism is attached to the piston, a special seating method is required. The only acceptable method is by rotating the piston back into the bore using Retractor,MILLER Special Tool 8807, . Any other seating method will damage the self-adjuster mechanism.
    Good luck and hope this helps.

    Mar 07, 2010 | Dodge Caravan Cars & Trucks

    1 Answer

    I want to repair the brakes on a 1999 Chrysler Town & Country minivan - Would like instructions and a picture/diagram, if possible.


    Chrysler Caravan/Voyager/Town and Country 1996-1999

    CAUTION
    Older brake pads or shoes may contain asbestos, which has been determined to be cancer causing agent. Never clean the brake surfaces with compressed air! Avoid inhaling any dust from any brake surface! When cleaning brake surfaces, use a commercially available brake cleaning fluid.
    1. Remove brake fluid from the master cylinder brake fluid reservoir until the reservoir is approximately 1/2 full. Discard the removed fluid.
    2. Raise and safely support the of the vehicle. Remove the wheels.
    3. Remove the brake caliper assembly that requires brake pad replacement.
    4. Support the caliper out of the way with a strong piece of wire. Do not let the caliper hang by the brake hose or damage to the brake hose will result.
    5. If necessary, compress the caliper piston into the bore using a C-clamp. Insert a suitable piece of wood between the C-clamp and caliper piston to protect the piston.
    6. Remove the outboard disc brake pad from the caliper by prying the brake pad retaining clip over the raised area on the caliper. Slide the brake pad down and off the caliper.
    7. Remove the inboard disc brake pad from the caliper by pulling the brake pad away from the caliper piston until the retaining clip on the pad is free from the caliper piston cavity.
    To install:
    1. Be sure the caliper piston has been completely retracted into the piston bore of the caliper assembly. This is required when installing the brake caliper equipped with new brake pads.
    2. If equipped, remove the protective paper from the noise suppression gaskets on the new disc brake pads.
    3. Install the new inboard disc brake pad into the caliper piston by pressing the pad firmly into the cavity of the caliper piston. Be sure the new inboard brake pad is seated squarely against the face of the brake caliper piston.
    4. Install the outboard disc brake pad by sliding it onto the caliper assembly.
    5. Install the brake caliper assembly.
    6. Install the wheels and lug nuts. Torque the lug nuts, in a star pattern sequence, to 95 ft. lbs. (129 Nm). Apply the brake pedal several times until a firm pedal is obtained.
    7. Check the fluid level in the master cylinder and add fluid as necessary. Road test the vehicle.
    You can find more details and images about this repalcement in autozone.com (free register).

    Hope helped with this. Good luck (remember rated this help).

    Nov 20, 2009 | 1999 Chrysler Town & Country

    1 Answer

    Front brake service for a 1995 subaru legacy. Repair calipers and new pads how to do it?


    Calipers need repairing only if they leak. Remove tire then calipers. Remove brake pad from calipers. Compress pistons in brake caliper and install new brake pad. Replace calipers and tire.

    Jul 29, 2009 | 1995 Subaru Legacy

    1 Answer

    I am replacing the rear pads and cannot get the caliper to compress using a c-clamp. Is there something special I need to do or know on my montego 05 car to get the caliper to compress? Sincerely Desperate...


    One, take your brake fluid reservoir cap off.
    Two, use a thin piece of wood to help you compress the piston on the caliper....do it slow. This way, you don't create a lot of pressure to the reservoir and it won't overflow.
    Three, these are the steps to removing and replacing the pads for the rear. It does mention a special tool....but you can use a c-clamp for the same purpose:

    Rear To Remove:
    1. Check the brake fluid level in the brake master cylinder reservoir.
    2. If required, remove the fluid until the brake master cylinder reservoir is half full. CAUTION
      Care must be taken when servicing rear brake components without disconnecting the parking brake cable from the brake caliper lever.
    3. Remove the disc brake caliper. Support the caliper with mechanic's wire. CAUTION
      When the brake pads are separated from the brake caliper, new brake pads must be installed. The brake pads are one-time use only.
    4. Remove and discard the brake pads and spring clips from the brake caliper anchor plate. NOTE: Do not remove the anchor plate guide pins. The guide pins are press fit to the brake caliper anchor plate. If the guide pins are damaged a new anchor plate must be installed.
    5. Inspect the brake caliper anchor plate assembly.
    6. Check the guide pins and boots for binding or damage.
    7. Install a new brake caliper anchor plate if it is worn or damaged.
    To Install:
    NOTE: The left caliper piston turns clockwise and the right caliper piston turns counterclockwise.
    1. Using the special tool, turn and compress the brake caliper piston into the cylinder.
    2. Clean the residual adhesive from the brake caliper fingers and pistons using the specified brake parts cleaner. CAUTION
      Do not allow grease, oil, brake fluid or other contaminants to contact the brake pad or caliper mating surface. Do not install contaminated pads.
      NOTE: Install all the new hardware supplied with brake pad kit.
    3. Install the new spring clips and brake pads.
    4. Position the brake caliper and install the 2 bolts. Tighten caliper bolts to 23 ft-lbs (31 Nm).
    5. If necessary, fill the brake master cylinder reservoir with clean brake fluid.
    6. With the engine running, apply pressure on the brake pedal to seat the brake pads.
    7. Test the brakes for normal operation.

    May 17, 2009 | 2005 Mercury Montego

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