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brake piston rewind tool
- Pastry
- Senior Member
- Posts: 2288
- Joined: Wed May 25, 2016 5:01 pm
- Location: South East
brake piston rewind tool
I want to change the rear pads on my E89 but because of the electronic handbrake (poxy idea that was) you need a rewind tool for the piston? Has anyone bought a cheap one that worked on their E89 please?
991 Carrera 2S
Now gone:
2008 Z4MR Midnight Blue Metallic
2006 Z4 3.0si sport Ruby Black
2006 Z4 3.0si sport Titanium Silver
2010 Z4 23i Msport and a 3.0i
Now gone:
2008 Z4MR Midnight Blue Metallic
2006 Z4 3.0si sport Ruby Black
2006 Z4 3.0si sport Titanium Silver
2010 Z4 23i Msport and a 3.0i
- Smartbear
- Lifer
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- Location: a barn in Somerset
brake piston rewind tool
You don't need a tool, the motor part comes off & you can wind the Pistons back manually
Rob
Rob
e89 Sdrive 20i, plenty of mumbo & good economy-the thinking bears z4
e89 Sdrive 30i, this ones busted, pass me another...
e85 3.0si sold
- Pastry
- Senior Member
- Posts: 2288
- Joined: Wed May 25, 2016 5:01 pm
- Location: South East
brake piston rewind tool
Are you sure Mr Bear, after taking the callipers of today Stu was sure you needed the tool?Smartbear wrote:You don't need a tool, the motor part comes off & you can wind the Pistons back manually
Rob
991 Carrera 2S
Now gone:
2008 Z4MR Midnight Blue Metallic
2006 Z4 3.0si sport Ruby Black
2006 Z4 3.0si sport Titanium Silver
2010 Z4 23i Msport and a 3.0i
Now gone:
2008 Z4MR Midnight Blue Metallic
2006 Z4 3.0si sport Ruby Black
2006 Z4 3.0si sport Titanium Silver
2010 Z4 23i Msport and a 3.0i
- Smartbear
- Lifer
- Posts: 13685
- Joined: Wed Feb 05, 2014 6:54 pm
- Location: a barn in Somerset
brake piston rewind tool
e89 Sdrive 20i, plenty of mumbo & good economy-the thinking bears z4
e89 Sdrive 30i, this ones busted, pass me another...
e85 3.0si sold
- cj10jeeper
- Lifer
- Posts: 17846
- Joined: Fri Jun 22, 2007 11:50 am
- Location: Lichfield, England
brake piston rewind tool
I have this one and used it on countless different brake set ups
Even those that don't need to be rotated, but just compressed are easy with it
http://www.ebay.co.uk/itm/19pc-Brake-Ca ... Swm8VUrv76
Even those that don't need to be rotated, but just compressed are easy with it
http://www.ebay.co.uk/itm/19pc-Brake-Ca ... Swm8VUrv76
Jaguar F-Type 3.0 Supercharged V6 S, Stratus Grey, LSD, Active Exhaust, CF wheels, Performance brakes, Sports seats and mods ongoing
Gone but not forgotten Z4 3.0i SE Roadster ///M front, Red ///M leather seats, Aero sills
Gone but not forgotten Z4 3.0i SE Roadster ///M front, Red ///M leather seats, Aero sills
- Smartbear
- Lifer
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- Joined: Wed Feb 05, 2014 6:54 pm
- Location: a barn in Somerset
brake piston rewind tool
I believe the e89 rear calliper Pistons need winding in from the back of the calliper after the electric actuator has been removedcj10jeeper wrote:I have this one and used it on countless different brake set ups
Even those that don't need to be rotated, but just compressed are easy with it
http://www.ebay.co.uk/itm/19pc-Brake-Ca ... Swm8VUrv76
Rob
e89 Sdrive 20i, plenty of mumbo & good economy-the thinking bears z4
e89 Sdrive 30i, this ones busted, pass me another...
e85 3.0si sold
- Pastry
- Senior Member
- Posts: 2288
- Joined: Wed May 25, 2016 5:01 pm
- Location: South East
brake piston rewind tool
Thanks Guys. I'll have a look at the video but either way it is still cost effective for me to change them myself, especially as the callipers are off waiting to be paintedSmartbear wrote:I believe the e89 rear calliper Pistons need winding in from the back of the calliper after the electric actuator has been removedcj10jeeper wrote:I have this one and used it on countless different brake set ups
Even those that don't need to be rotated, but just compressed are easy with it
http://www.ebay.co.uk/itm/19pc-Brake-Ca ... Swm8VUrv76
Rob
991 Carrera 2S
Now gone:
2008 Z4MR Midnight Blue Metallic
2006 Z4 3.0si sport Ruby Black
2006 Z4 3.0si sport Titanium Silver
2010 Z4 23i Msport and a 3.0i
Now gone:
2008 Z4MR Midnight Blue Metallic
2006 Z4 3.0si sport Ruby Black
2006 Z4 3.0si sport Titanium Silver
2010 Z4 23i Msport and a 3.0i
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- Lifer
- Posts: 9539
- Joined: Sat Jun 13, 2015 9:09 am
- Location: South west Buckinghamshire
brake piston rewind tool
I use long nose pliers on the rear calipers on my MR2, just hold them against the piston and push/turn slowly. That's always worked for me.
BMW Z4 30i 2003 auto 107's Whippy Toledo Blue
Beige M sport seats, wood dash
Toyota MR2 NA 1995
Triumph GT6 1972 (project)
Land Rover Discovery 1994 TDI (Tow car)
Mini 1000 1981
Beige M sport seats, wood dash
Toyota MR2 NA 1995
Triumph GT6 1972 (project)
Land Rover Discovery 1994 TDI (Tow car)
Mini 1000 1981
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- Lifer
- Posts: 4047
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brake piston rewind tool
I wound my brakes from behind after removing ebrake mainly because I usually strip the whole lot clean repaint etc.
Always think there is the danger of tearing the dust seal if rotated from the piston face.
Always think there is the danger of tearing the dust seal if rotated from the piston face.
- benv6
- Member
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- Location: Berkshire
brake piston rewind tool
I have changed my rear pads few months ago and used that same video, you can use a screwdriver but I have used the tool mentioned in this thread (ebay one) and it makes it a lot easier. the screwdriver option would take you ages to push back the piston.
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OnlineNictrix
- Lifer
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- Location: Paisley
brake piston rewind tool
Just to be completely clear on this for when it comes time to change ours, can you wind the piston in both ways?
Either with the e-brake part attached winding the piston or with it removed and winding from the rear?
Either with the e-brake part attached winding the piston or with it removed and winding from the rear?
E89 2014 35i M Sport Black with Black leather
- Smartbear
- Lifer
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- Joined: Wed Feb 05, 2014 6:54 pm
- Location: a barn in Somerset
brake piston rewind tool
I'd say yes, looks like Pastry has left the actuators attached & wound the Piston in from the frontNictrix wrote:Just to be completely clear on this for when it comes time to change ours, can you wind the piston in both ways?
Either with the e-brake part attached winding the piston or with it removed and winding from the rear?
Rob
e89 Sdrive 20i, plenty of mumbo & good economy-the thinking bears z4
e89 Sdrive 30i, this ones busted, pass me another...
e85 3.0si sold
- Pastry
- Senior Member
- Posts: 2288
- Joined: Wed May 25, 2016 5:01 pm
- Location: South East
brake piston rewind tool
I used the method shown in the video using a large flat blade screwdriver. With hindsight I would have bought the tool as it's only a few pounds and would make the job a lot easier with much less chance of damaging something.Smartbear wrote:I'd say yes, looks like Pastry has left the actuators attached & wound the Piston in from the frontNictrix wrote:Just to be completely clear on this for when it comes time to change ours, can you wind the piston in both ways?
Either with the e-brake part attached winding the piston or with it removed and winding from the rear?
Rob
991 Carrera 2S
Now gone:
2008 Z4MR Midnight Blue Metallic
2006 Z4 3.0si sport Ruby Black
2006 Z4 3.0si sport Titanium Silver
2010 Z4 23i Msport and a 3.0i
Now gone:
2008 Z4MR Midnight Blue Metallic
2006 Z4 3.0si sport Ruby Black
2006 Z4 3.0si sport Titanium Silver
2010 Z4 23i Msport and a 3.0i
- cj10jeeper
- Lifer
- Posts: 17846
- Joined: Fri Jun 22, 2007 11:50 am
- Location: Lichfield, England
brake piston rewind tool
For this reason I always buy s tool. Used it in BMW, jeeps & Jags all with different set ups and so much better than messing with screwdrivers and g clampsPastry wrote:I used the method shown in the video using a large flat blade screwdriver. With hindsight I would have bought the tool as it's only a few pounds and would make the job a lot easier with much less chance of damaging something.Smartbear wrote:I'd say yes, looks like Pastry has left the actuators attached & wound the Piston in from the frontNictrix wrote:Just to be completely clear on this for when it comes time to change ours, can you wind the piston in both ways?
Either with the e-brake part attached winding the piston or with it removed and winding from the rear?
Rob
Jaguar F-Type 3.0 Supercharged V6 S, Stratus Grey, LSD, Active Exhaust, CF wheels, Performance brakes, Sports seats and mods ongoing
Gone but not forgotten Z4 3.0i SE Roadster ///M front, Red ///M leather seats, Aero sills
Gone but not forgotten Z4 3.0i SE Roadster ///M front, Red ///M leather seats, Aero sills
- R.E92
- Senior Member
- Posts: 1644
- Joined: Wed Dec 04, 2013 10:10 am
brake piston rewind tool
This should be possible with ISTA-D.
I have read somewhere else that there is a software procedure for releasing the ebrake.
EDIT: Found it. It's part of ISTA-D, under Vehicle Management >> Service Functions >> Chassis and suspension >> Parking Brake >> Worshop mode > "ABL - Parking brake: Workshop mode"
I think BMW use a special tool for manually retracting it now but before that tool came along they used the above method.
I have read somewhere else that there is a software procedure for releasing the ebrake.
EDIT: Found it. It's part of ISTA-D, under Vehicle Management >> Service Functions >> Chassis and suspension >> Parking Brake >> Worshop mode > "ABL - Parking brake: Workshop mode"
I think BMW use a special tool for manually retracting it now but before that tool came along they used the above method.