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Thread: Trick? Compressing Rear Brake Piston Back on Parking Brake Side?

  1. #1
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    Question Trick? Compressing Rear Brake Piston Back on Parking Brake Side?

    I started changing the rear pads out for new ones, but the piston will not push back into the caliper. Am I missing some trick or something?

    1. The parking hand brake is released.
    2. Had Wrong Tool to compress caliper piston. (Needed Caliper Wind-Back Tool)
    3. The piston is not over extended, because I can still re-install the old pads and put back on the rotor.
    4. I even tried opening the brake fluid bleeder valve to let brake fluid out but no squirt even with the caliper compression tool as tight as I can do it.

    Cars up in the air and am stuck, Help is greatly appreciated.
    Last edited by AFX; 02-10-2014 at 03:10 PM.

  2. #2
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    Quote Originally Posted by AFX View Post
    I started changing the rear pads out for new ones, but on the parking brake side the piston will not push back into the caliper. Am I missing some trick or something?

    1. The parking hand brake is released.
    2. I have a proper caliper expansion tool. (curved plate with a screw in the middle to push piston in)
    3. The piston is not over extended, because I can still re-install the old pads and put back on the rotor.
    4. I even tried opening the brake fluid bleeder valve to let brake fluid out but no squirt even with the caliper compression tool as tight as I can do it.

    Cars up in the air and am stuck, Help is greatly appreciated.
    Every VW I have had since the MK2 days, you wind in the piston. Although if you have an electric handbrake, that's probably going to change the procedure these days.

    Gavin

  3. #3
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    Thx Gavin,

    I have a Golf MK6 2009 with manual hand brake.

    So I need a different kind of tool to wind back the caliper piston back in, now that explains the problem.

    Searching for the right tool now.
    Last edited by AFX; 02-10-2014 at 12:18 PM.

  4. #4
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    I live in QLD but Supercheap and all those places sell them. Trade tools have them up here.

    https://www.google.com.au/search?q=c...w=1280&bih=671

    Quote Originally Posted by AFX View Post
    Thx Gavin,

    I have a Golf MK6 2009 with manual hand brake.

    So I need a different kind of tool to wind back the caliper piston back in, now that explains the problem.

    Searching for the right tool now. Any suggestions on where to buy one right now? Melbourne North.

  5. #5
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    Something like this:
    Quality Brake Break Caliper Piston Rewind Tool FOR VW Audi Golf Seat Ford Mazda | eBay

    It's a standard thing when the handbrake is incorporated in the caliper.

    You can apply pressure with the compressor you've got & rotate the piston with some 90 degree circlip pliers or pointy nose pliers or sometimes you can grip the outside of the piston right on the edge with multigrips. It's a bodge 7 takes forever & you'll skin your knuckles
    carandimage The place where Off-Topic is On-Topic
    I used to think I was anal-retentive until I started getting involved in car forums

  6. #6
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    Quote Originally Posted by brad View Post
    Something like this:
    Quality Brake Break Caliper Piston Rewind Tool FOR VW Audi Golf Seat Ford Mazda | eBay

    It's a standard thing when the handbrake is incorporated in the caliper.

    You can apply pressure with the compressor you've got & rotate the piston with some 90 degree circlip pliers or pointy nose pliers or sometimes you can grip the outside of the piston right on the edge with multigrips. It's a bodge 7 takes forever & you'll skin your knuckles
    I lift the dust seal and squirt some WD40 in so the rubber doesn't grab the piston and get ripped up. I'd be reluctant to use grips even as a last resort, I don't reckon you would wind it in far enough.

    Also not mentioned yet but the 2 cut outs should be horizontal when you finish.

    Gavin

  7. #7
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    Mission Accomplished!

    So much easier when you have the right tools to start with.

    Thanks Gavin and Brad.
    Last edited by AFX; 02-10-2014 at 03:06 PM.

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    Quote Originally Posted by h100vw View Post
    I lift the dust seal and squirt some WD40 in so the rubber doesn't grab the piston and get ripped up. I'd be reluctant to use grips even as a last resort, I don't reckon you would wind it in far enough.

    Also not mentioned yet but the 2 cut outs should be horizontal when you finish.

    Gavin
    I've done it on other marques - maybe VW stuff wouldn't work. Would you believe I worked at a "brake specialists" and they didn't own a proper tool?

    You've got to be super careful & it takes a lot longer & usually 2 people (ie the tool would have paid for itself after a few uses). The tight barsteward that was the manager of that place & wouldn't buy specialist tools is now CEO of a major tyre & auto chain. LOL
    carandimage The place where Off-Topic is On-Topic
    I used to think I was anal-retentive until I started getting involved in car forums

  9. #9
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    Quote Originally Posted by brad View Post
    I've done it on other marques - maybe VW stuff wouldn't work. Would you believe I worked at a "brake specialists" and they didn't own a proper tool?

    You've got to be super careful & it takes a lot longer & usually 2 people (ie the tool would have paid for itself after a few uses). The tight barsteward that was the manager of that place & wouldn't buy specialist tools is now CEO of a major tyre & auto chain. LOL
    I have spent a fortune on tools over the years. My wind back tool would have to be 20 years old, I got it to do the brakes on my first MK2 GTI. If there's a special tool made for a job, I'll buy it.

    I have a G60 tensioner compressor tool which I have used once. I just know the minute I sell it, I'll want to use it again.

    I am long past struggling to do car jobs.

    Gavin

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