Question about 2008 Mini Cooper S

2 Answers

Break caliper pushed forward

I was replacing break rotors and just could not get one of the screws to loosen, so I asked my child to press breaks. I forgot I already took the breaks on one of the wheels and now the caliper is pressed all the way forward. I was trying to use a tool to press it back, like you would when you put new pads but it does not move back. What do I do? It's the front passenger wheel.

Posted by on

  • Randall Nichols
    Randall Nichols May 14, 2014

    To move them back you have to screw them in unlike some calipers where you can press them back with a scissor clamp.



2 Answers

  • Level 1:

    An expert who has achieved level 1.


    An expert that has over 10 points.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 5 Answers

Try opening the master cylinder to relieve the pressure in the lines. It won't hurt anything cus you have to bleed the line anyway or should. Hope this helps

Posted on May 12, 2014

  • 2 more comments 
  • steve_n63630
    steve_n63630 May 12, 2014

    Where is the master cylinder? Should I bleed breaks? Haven't really done it.

  • desertracer May 12, 2014

    better yet loosen the bleeder valve on the back o fthe caliper

  • desertracer May 12, 2014

    I checked the caliper is really expensive at orillys auto prts but the caliper kit is only about $400. I would try to blow tht piston out of three with brake fluid pressure, and rinstyal the piston wih new seal.. be really careful with the piston.. don't brake it.. ..

  • steve_n63630
    steve_n63630 May 12, 2014

    I think the caliper is fine. I think there's a fluid that's pushing it. I think I need to reduce preasure first, push it back. Assemble the breaks and add new fluid. Sounds about right?


  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert who has achieved Level 3.

  • Mini Master
  • 450 Answers

You are talking about the piston being pushed out? #1. Put a piece of wood in the caliper and push the brake pedal again.. remove the piston all the way. clean the caliper bore, replace the seal(caliper rebuild kit usually really cheap) carefully reinstall the piston.. sounds like it is either "cocked and stuck or the caliper has a ring of rust at the top of the bore. either way clean and reinstall the piston. possibilty #2. Take a "C" Clamp and force the piston back in.. if you do this take an old pad and put it between the piston and clamp to protect the poston.

Posted on May 12, 2014

Testimonial: "I actually have a tool for pushing back the piston. I did it on the first wheel, but this seem to be too hard. In fact I can't turn the tool any more and the piston is still all the way in. At the beginning when I tried pushing it some of the break fluid dripped. I just don't want to make things worse. Shall I continue pushing. I don't see any rust. Everything looks quite clean."

  • 1 more comment 
  • steve_n63630
    steve_n63630 May 12, 2014

    Testimonial: "I actually have a tool for pushing back the piston. I did it on the first wheel, but this seem to be too hard. In fact I can't turn the tool any more and the piston is still all the way in. At the beginning when I tried pushing it some of the break fluid dripped. I just don't want to make things worse. Shall I continue pushing. I don't see any rust. Everything looks quite clean."

  • desertracer May 12, 2014

    Steve so what happened? When you let the brake pedal up there should be no more pressure on the caliper piston >> wHAT WAS THE FIX? BTW tHAT CALIPER REBUILD KIT WAS $4.00 not $400. Possibly 400 at the BMW dealer..

  • steve_n63630
    steve_n63630 May 14, 2014

    I opened the bleeder valve and was able to push the caliper back in.



1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

1993 f250 diesel. Brakes spongy and front brakes stick and pedal fails to come up. Have replaced the rotors, calipers, pads, shoes, master cylinder, power boost, back wheel cylinders and had the system...

air in system push break down look for bleeder on check valve if not break line loose at check valve retighten . pump break don t fix push pedal loosen another line tighten back check again

Sep 19, 2017 | Ford F-250 Cars & Trucks

1 Answer

How to get both of the break cailabers to go back on a break job

If it's been 10days, I hope you got your brakes together by now. Sorry I'm late.
I assume you are talking about retracting the pistons into the calipers, so you can get them over the rotor. If they don't go over the rotor, the piston almost certainly is not all the way in the caliper housing.

I usually do one side at a time.
Remove or loosen the cap on the brake master cylinder under the hood. This insures that when you press the piston back into the cylinder, that the brake fluid can flow back into the master cylinder.
If you have both sides apart, make sure you temporarily put one side back together or block one of the pistons with a stack of pads or wood to keep it from popping out.

The easiest way to push the piston back in is to use a C-clamp and one of the old brake pads. Place the pad on the piston, and clamp it with the C-clamp. Tighten until piston is back in.

No C-clamp? Put the old inner pad back on and slip the caliper over the rotor. You don't have to bolt it down, or maybe just start the bolts to keep the caliper from moving around. Use a large screw driver or pry bar in-between the old pad and rotor and pry the piston back in.

Nov 28, 2010 | 2001 Chevrolet Camaro

1 Answer

I'm getting a vibration from the brake peddle when pressed on


What you are feeling from the break pedal is that the rotors are warped a little bit. So, as the warped part of the rotor goes through the caliper its pushing the break pedal back in to your foot. Most break shops can turn your rotors for you ... the price of turning a rotor around me is about 15 dollars, plus the labor to take it off. 50 bucks should get your breaks nice and smooth again.

Hope this helps

Nov 25, 2010 | 2003 Mercedes-Benz C-Class

1 Answer

How to change break rotor on 1999ford windstar

Remove brake caliper and then the three torx screws from factory rotor. (most replacement rotors omit the screw holes). Rotor will then pull off. If it is frozen in place, a couple of strikes to the rotor edges with a RUBBER mallett will usually break it loose.

Oct 02, 2010 | 1999 Ford Windstar

1 Answer

Want to replace front break pads

biggest difference is you should loosen the bleeder screw to press the caliper piston back in, otherwise you could damage the abs actuator, and do not disturb the wiring or sensor

Jul 19, 2010 | 2004 Honda Odyssey

2 Answers

Grinding sound when I break and after I break. It

You are correct. The pad has worn down to the steel backing pad, and now you will have to replace your brake rotor as well.

Feb 26, 2010 | 2002 Mazda Protege

1 Answer

How do i replace front drivers side brake caliper?

Jack the van up, remove the tire. Then you will see the caliper. There will be 2 bolts that hold it on to the rotor. Remove the bolts and pry it off with a screw driver or what ever works. Then disconnect the break line from the caliper. After you get the new one use a c-clamp to press the piston down into the caliper and install the brake pads. Bolt the caliper back into place and install the line. Loosen up the bleed valve on the caliper 1/2 turn and have someone pump the breaks until no air bubbles come out. Once you have a smooth stream of brake fluid coming out the valve have that person pump once more and hold the pedal all the way to the floor. Then tighten the valve.

Dec 29, 2009 | 2000 Dodge Caravan

1 Answer

Instructions for replacing brake pads on 2005 dodge ram 1500 4wd

Remove Tire
On the back ot the caliper ( holds Brake pads) there are two bolt or Screws ( usually allen heads) loosen those screws and remove them. pull off the caliper. check your rotor check for grooves and you might want to take them to get turned ( cleans the surface by taking a thin layer of metal off.

Using a C clamp or Disk brake pad tool carefully and slowly compress the piston back into the caliper....Slowly. Pace ne break pads in caliper and slide it back on to the rotor... replacing the bolts tighten them up...replace tire and you should be good to go. Remember to pump you breaks to get the pads to adjust will be soft at first. there should be no need to bleed the brakes.

Oct 15, 2009 | 2005 Dodge Ram 1500

4 Answers

How to adjust caliper for rear brakes on a Mazda Protege Es.

on the rear calipers there is a 14m bolt on the back of the caliper beside the parking brake braket.
remove bolt on the inside there is a hex screw. as you turn it the piston gose in or out.
check calipers for damage.

Mar 19, 2009 | 2002 Mazda Protege

2 Answers

Changing rotors and breaks

When you replace the pads you have to retract the pistons into the bore. As the pads wear they stay extended from the brake caliper. The new thinkness of the pads will not allow the pads the slip over the rotors until you retract the pistons. Your pistons may be the type that have to be turned back into the bore.Good luck.

Mar 12, 2009 | 1998 Ford Expedition

Not finding what you are looking for?
2008 Mini Cooper S Logo

86 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mini Experts

Colin Stickland
Colin Stickland

Level 3 Expert

22246 Answers


Level 3 Expert

76848 Answers

Jeffrey Turcotte
Jeffrey Turcotte

Level 3 Expert

8582 Answers

Are you a Mini Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides