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  #1  
Old 10-17-2019, 10:53 AM
Flying Ace Flying Ace is offline
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Parking Brake Malfunction - manual release issue

This morning, I received the dreaded parking brake malfunction error. I realize I have a long road of diagnostics coming up regarding actually fixing the issue (actuator, cables, electronics, etc), but for the time being I just need to release the brake engagement so I can drive the car.

I read the manual and viewed the youtube videos and I still cannot manually disengage it. The release in the trunk is a steel metal loop, not a "nut" that the videos show. I pulled the wire upwards to the resistance point, and pulled it a bit more and heard a small pop. I tried the push the button down, then push the button up reset sequence, but it still won't disengage.

Any suggestions? I did the reset while the ignition was on and with a firm foot on the brake.
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  #2  
Old 10-17-2019, 02:28 PM
deroy deroy is online now
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Pull harder.


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  #3  
Old 10-17-2019, 02:41 PM
kankou kankou is offline
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+1, I agree, pull up harder. When my parking brake broke, I remember having troubling releasing via the loop. I ended up putting a small tool into the loop to get more leverage to release. It was a pretty solid pop/release noise once it disengaged.

I was not in a position to DIY the fix, so took it to my Indy for a replacement. Cost a pretty penny.
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Old 10-17-2019, 02:58 PM
Flying Ace Flying Ace is offline
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Quote:
Originally Posted by kankou View Post
+1, I agree, pull up harder. When my parking brake broke, I remember having troubling releasing via the loop. I ended up putting a small tool into the loop to get more leverage to release. It was a pretty solid pop/release noise once it disengaged.

I was not in a position to DIY the fix, so took it to my Indy for a replacement. Cost a pretty penny.
thanks! what was the ultimate issue for you? Actuator?
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Old 10-17-2019, 03:03 PM
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Doug Huffman Doug Huffman is offline
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Originally Posted by Flying Ace View Post
thanks! what was the ultimate issue for you? Actuator?
The EMF actuator uses a ‘nylon’ pinion gear much like the VTG TC actuator and it wears similarly.

Milady Wife sets the EMF parking brake every time she parks in our garage.
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Old 10-17-2019, 03:25 PM
kankou kankou is offline
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Quote:
Originally Posted by Flying Ace View Post
thanks! what was the ultimate issue for you? Actuator?
the actuator was unresponsive via tool. the unit was replaced and coding done.
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Old 10-17-2019, 03:45 PM
Flying Ace Flying Ace is offline
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I'm trying to pull the loop now, and it's very difficult past the resistance point. I'm using a screwdriver and it's getting to the point where I might bend the shaft of the screwdriver.

Keep pulling?
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Old 10-17-2019, 05:11 PM
robnitro robnitro is offline
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Lesson learned, don't use the parking brake cause it's a crap design. It should be recalled lol

I had an error a month ago, one of the leads to the motor broke inside. Even though I don't use it, the modules check for continuity.
Soldered on a wire and reconnected it, making sure to hot glue the wires so they don't vibrate and wiggle which breaks it off the motor.

I did it from under the car as I did not want to have to disconnect the cables from the parking brake drums.
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Old 10-17-2019, 05:21 PM
Flying Ace Flying Ace is offline
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Good news: I think I was able to release the brake. I didn't hear a pop, but i am able to move the car with no noticeable resistance or noise indicating the ebrake is likely no longer engaged. This morning, it was obvious that the brake was engaged, I would push lightly on the gas pedal and the car would have major resistance.

Bad news: that park light is still on with the malfunction message. It gives me pause that perhaps I haven't fully released the brake. I tried the reset process both by pushing the button down and pulling it up for few seconds and pulling the fuse, but the light is still on and won't reset.

Have I truly disengaged the brake? Any other way to check without damaging the brake?

The car currently is parked on a slight hill. So when I put it in P, and shut down, the car inches forward and gets caught in gear, similar to if you put the transmission in P and didn't engage the parking brake.
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Last edited by Flying Ace; 10-17-2019 at 05:25 PM.
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Old 10-17-2019, 05:35 PM
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Also in neutral the car rolls with no resistance forwards or backwards. I think I'm good?
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  #11  
Old 10-17-2019, 10:37 PM
Masoe Masoe is offline
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Quote:
Originally Posted by Flying Ace View Post
Also in neutral the car rolls with no resistance forwards or backwards. I think I'm good?
You should be good. I had mine replaced last week at my Indy. He had to order the part but told me it was fine to drive with the malfunction light on. I drove it for 2 weeks without issues. It's funny, we have probably used the parking brake 6 times in all the years we had the vehicle in/around San Francisco, but the second we used it in our drive way it broke.

PS, the "Pucker Gong" is annoying when you first get in the vehicle but it stops within a few seconds...also, once we got the vehicle's Park Brake released, the "park" brake indicator changed from RED to Yellow on the dash...jfyi.
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Last edited by Masoe; 10-17-2019 at 10:39 PM.
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Old 10-18-2019, 06:29 AM
n1das n1das is offline
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Non-use of the parking brake is what leads to problems with the parking brake the first time it gets used.

I ALWAYS set the parking brake when my cars are parked. Absolutely no exceptions. Never had a problem in more than 40 years of driving. Regular use prevents problems with the parking brake system. My 2012 X5 35d at only 228k miles still has the original parking brake system. The only thing that has been replaced is the parking brake switch after the plastic button broke from my pulling it much harder than necessary.

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Last edited by n1das; 10-18-2019 at 06:44 AM.
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  #13  
Old 10-18-2019, 08:05 AM
Flying Ace Flying Ace is offline
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Quote:
Originally Posted by Masoe View Post
You should be good. I had mine replaced last week at my Indy. He had to order the part but told me it was fine to drive with the malfunction light on. I drove it for 2 weeks without issues. It's funny, we have probably used the parking brake 6 times in all the years we had the vehicle in/around San Francisco, but the second we used it in our drive way it broke.

PS, the "Pucker Gong" is annoying when you first get in the vehicle but it stops within a few seconds...also, once we got the vehicle's Park Brake released, the "park" brake indicator changed from RED to Yellow on the dash...jfyi.
Thanks. So what parts did you end up changing?
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Old 10-18-2019, 08:54 AM
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Quote:
Originally Posted by n1das View Post
Non-use of the parking brake is what leads to problems with the parking brake the first time it gets used.

I ALWAYS set the parking brake when my cars are parked. Absolutely no exceptions. Never had a problem in more than 40 years of driving. Regular use prevents problems with the parking brake system. My 2012 X5 35d at only 228k miles still has the original parking brake system. The only thing that has been replaced is the parking brake switch after the plastic button broke from my pulling it much harder than necessary.

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Good to know. That eases my mind a bit.
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Scepticism and Animal Faith (1923)
Scepticism is the chastity of the intellect, and it is shameful to surrender it too soon or to the first comer: there is nobility in preserving it coolly and proudly through long youth, until at last, in the ripeness of instinct and discretion, it can be safely exchanged for fidelity and happiness.
(The Works of George Santayana p. 65)

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Old 10-18-2019, 01:46 PM
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Quote:
Originally Posted by n1das View Post
non-use of the parking brake is what leads to problems with the parking brake the first time it gets used.

I always set the parking brake when my cars are parked. Absolutely no exceptions. Never had a problem in more than 40 years of driving. Regular use prevents problems with the parking brake system. My 2012 x5 35d at only 228k miles still has the original parking brake system. The only thing that has been replaced is the parking brake switch after the plastic button broke from my pulling it much harder than necessary.

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+1
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Old 10-18-2019, 01:52 PM
robnitro robnitro is offline
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I don't like the parking brake system but use it once a month just to exercise it.
The annoying thing is when you are on a hill, set parking brake and put trans in P.
Here's the face palm, it'll momentarily let go of parking brake so it sits on the P pawl in the transmission and re engage it, defeating the purpose of why I wanted to use the freaking parking brake! (To not have the gravity pushing on the pawl in the first place argh!)

Wait until the wire breaks off the motor inside the module and you'll see how mechanically it's great but electrically a piece of crap.
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Old 10-18-2019, 02:57 PM
Masoe Masoe is offline
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Originally Posted by Flying Ace View Post
Thanks. So what parts did you end up changing?
I chose to replace with a Re-Built actuator.
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Old 10-20-2019, 05:16 AM
blue dragon blue dragon is offline
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How do you not set the parking brake since the E70 does it automatically when you stop
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Old 10-20-2019, 05:36 AM
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There are three functions at play. Transmission Park 'lock' is set on engine off. Auto Hold / Anti-roll Back is hydraulic DSC while the engine is running. Parking 'Emergency Brake' Electro Magnitic Force - EMF - is manual. Auto Hold may engage EMF automatically at engine off but I have not tried it.
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Scepticism and Animal Faith (1923)
Scepticism is the chastity of the intellect, and it is shameful to surrender it too soon or to the first comer: there is nobility in preserving it coolly and proudly through long youth, until at last, in the ripeness of instinct and discretion, it can be safely exchanged for fidelity and happiness.
(The Works of George Santayana p. 65)

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Old 10-20-2019, 07:03 AM
twh twh is offline
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Originally Posted by blue dragon View Post
How do you not set the parking brake since the E70 does it automatically when you stop
Good point...when you put the car in P and turn off the car, the parking brake automatically engages on my 2009 X5.
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Old 10-20-2019, 07:46 AM
Masoe Masoe is offline
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There are three functions at play. Transmission Park 'lock' is set on engine off. Auto Hold / Anti-roll Back is hydraulic DSC while the engine is running. Parking 'Emergency Brake' Electro Magnitic Force - EMF - is manual. Auto Hold may engage EMF automatically at engine off but I have not tried it.
This
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Last edited by Masoe; 10-20-2019 at 07:48 AM.
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  #22  
Old 10-22-2019, 05:26 PM
Falkon Falkon is offline
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Originally Posted by Doug Huffman View Post
... . Auto Hold may engage EMF automatically at engine off but I have not tried it.
Yes it does indeed. The following actions causes the Auto-Hold (Green Park Lighting) to automatically turn on the Parking Brake (Red Park Lighting). If you:

1. switch the Bimmer off

2. get off your seat, even a little bit, while the engine is running

Last edited by Falkon; 10-23-2019 at 11:34 AM.
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Old 10-22-2019, 05:31 PM
Falkon Falkon is offline
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Good point...when you put the car in P and turn off the car, the parking brake automatically engages on my 2009 X5.
The Parking Brake does not engage automatically when the Bimmer is switched off unless you had previously had it on Auto-Hold function.

You may probably be referring to the Transmission Park, which if the engine is running, you could select by pressing the little button on the Gearshift Selector.

The Parking Brake Switch is totally different, it's the big Black Button on the Console that you Press down or Pull up to disengage or engage the Parking/ Emergency brake respectively.

Last edited by Falkon; 10-22-2019 at 05:35 PM.
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  #24  
Old 10-22-2019, 05:36 PM
Falkon Falkon is offline
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Originally Posted by blue dragon View Post
How do you not set the parking brake since the E70 does it automatically when you stop
I imagine you are referring to the Transmission PARK not the Parking Brake.

Last edited by Falkon; 10-22-2019 at 05:53 PM.
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Old 10-22-2019, 06:00 PM
twh twh is offline
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I never use auto-hold. I never set the parking brake when turning off the car. Every time I get into the car and start it, I have to release the parking brake.
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