Question about 1997 Volvo 850

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1998 s70 rear brake pad change.

Hello, i have tried changing the rear pads on my s70 today, but only managed to change one pad on each side. I had the top off on the fluid resevoir, and everything was fine until it came to trying to push the inside cyclinder in. It would not budge, and was the same on both sides of the car. The outer cyclinder pushed in fine but the inner ones would not move at all....am i doind something wrong. The car was in park.....and the handbrake was off.

Posted by on

  • peter253 Oct 22, 2008

    by the sounds of it then, the inside piston must have gone on both callipers.....it will not push back at all......

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  • Master
  • 2,035 Answers

  1. Turn the ignition switch OFF and, if equipped with ABS, remove the key to prevent accidental pump activation.
  2. Raise and safely support the vehicle.
  3. Remove the wheel(s).
  4. Disconnect any ABS wires, if equipped.
  5. Clean the brake caliper thoroughly and remove the dust caps from the bleeder nipple.
  6. Open the bleed nipple and lock the brake pedal the depressed position. Collect the brake fluid spillage in a suitable container.
  7. Remove the brake pads and disconnect the brake pipes from the caliper.
  8. Remove caliper mounting bolts and lift the caliper off.
  9. Drain the remaining brake fluid in the caliper into suitable container.
To install:
  1. Clean the caliper mount where the caliper lies.
  2. Install the caliper and new mounting bolts. Tighten the bolts to 44 ft. lbs. (60 Nm).
  3. Connect the brake line to the caliper and tighten to 10 ft. lbs. (14 Nm).
  4. Grease the brake pad shims with a thin layer of silicon grease. Put the shims on the back of the pads and install them in the caliper.
  5. Install one retaining pin, spring then the other retaining pin.
  6. Fill the brake master cylinder and bleed the brake system.
  7. Connect any ABS wires, unfastened earlier.
  8. Install the wheels.
  9. Lower the vehicle and check the brake function before driving.1998 s70 rear brake pad change. - 5a93b4b.jpgb252921.jpg2e6388c.jp1998 s70 rear brake pad change. - 9685511.jpg_mi791e0f3.jpg9685511.jpg


Good luck...

Posted on Oct 22, 2008

  • Anand Kumar
    Anand Kumar Oct 22, 2008

    To install pads:
    See Figures 1, 2, 3, 4, 5, 6, 7 and 8


    1. Raise and safely support the vehicle.

    2. Remove the wheels.

    3. Drive out the retaining pins with a 3mm drift and remove the retaining spring.

    4. Clean the brake caliper surfaces where the pads lie.

    5. Check and clean the piston dust boot for dirt or damage and replace if necessary.

    6. Check the brake disc surface for damage, if it is warped or distorted, replace it or check the run-out.
    To install:


    1. Press the pistons back into their housing using a suitable tool. Make sure that they are seated properly.

    2. Grease the pad shims on both sides with a thin layer of silicone grease.

    3. Install the shims on the pads,

    4. Install the pads in the caliper.

    5. Install one retaining pin, the retaining spring and then the other pin.

    6. Depress the brake pedal several times and check the brake fluid reservoir level.

    7. Install the wheels.

    8. Lower the vehicle.

    9. Check the brake function before driving the car.



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