BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)
 





 

Post Reply
 
Thread Tools Search this Thread
      02-29-2012, 07:12 PM   #1
Ihave1
Private First Class
United_States
42
Rep
159
Posts

Drives: 2008 135i
Join Date: Jan 2011
Location: NC, USA

iTrader: (1)

Let's adjust the parking brake

If you have been needing to crank on your parking brake lever to get it to hold it may be time to adjust the pads.

What you will need:
17mm socket
Various flat head screw drivers
Flashlight
Wheel chocks
Jack

First you will need to release tension on the cable. This is done by compressing a spring loaded tensioner located under the parking brake boot.

Pop up the rear of the leather boot with something that wont scratch it and then pull the rest of the assembly up and out of the way




I used a flat head with electrical tape on it



Now you need to compress this spring until a little latch grabs it. You will hear a click


To compress this spring, make sure the parking brake is released then stick a large screw driver in the little square notch on left side front of the mechanism and press towards the back of the car.




For the next step you can either jack up one side at a time or the entire rear end. Use wheel chocks on the front wheels. You only need to remove 1 bolt from each rear wheel. It doesnt matter which one. You will need the parking brake off and the transmission in neutral so you can rotate the tires.

Remove a bolt using a 17mm socket


Inside, there is a mechanism that can adjust the pads outwards as they wear.
It is part number 3 in this diagram. As the star shaped ring rotates the assembly expands and pushes the pads outwards towards the inside of the rotors. On my car I believe it was rotated in the opposite direction. This will change which direction you need to spin the star ring.


Here is how it was oriented on my car


On the left side tire, the mechanism can be seen through the hole when it is at the 1 o'clock position.


Next you need to stick a screw driver into the hole and rotate the star shaped ring on the adjuster.

You need to go in the correct direction to expand the pads. On the left side, this means get your flat head under the bottom part of the star and flick it upwards and to the rear of the car. If you were to look at the assembly from the rear of the car, the star would rotate clockwise.

Wedge the flat head under...


pry upwards by pushing the handle down


Make sure not to get caught up on the spring located right under the assembly. It can be hard to tell if you are rotating it, just keep at it. After a while test to see if the tire still spins. When the pads move far enough out to prevent the tire from rotating, spin it the opposite direction for about 8 clicks to leave a small gap and you are done with this side. Replace the bolt and lower it back down.

On to the right side. Here is the location for the mechanism on the right side.



This time you are doing the opposite motion. Get the flat head on top of the star and rotate it down and to the front. Again, if you were looking from directly behind the rear of the car it would be rotating clockwise.

Flat head starting position


Ending position


It takes some force to get it spinning. Keep at it until this tire stops rotating freely and then back off a few clicks. Put the lug bolt back in and lower it down.

Here are the two types of flat heads I used


Last step, you need to release the spring located under the boot.
It looks like a J in this picture. I used a dental pick to pry it out and to the right side of the car. The spring will release.



Put the boot back on starting from the front and you are all done. You should now start to engage after about 5 clicks and not have to pull it up quite as far.

Last edited by Ihave1; 02-29-2012 at 07:33 PM..
Appreciate 5
      03-06-2013, 01:02 PM   #2
Pwalo
Private
England
10
Rep
87
Posts

Drives: 118d m sport Le Mans blue 2009
Join Date: Jun 2010
Location: Guisborough

iTrader: (0)

Excellent clear post. I looked at somebody else's post last night and couldnt get it to work. Thought i must have snapped a cable. turns out they had missed out the cable tensioner piece inside the car. argh .Looked at yours tonight and did it in 10 mins flat. Great info and thanks. Feels like new again. Bestvregards Paul
Appreciate 0
      03-06-2013, 09:06 PM   #3
Ihave1
Private First Class
United_States
42
Rep
159
Posts

Drives: 2008 135i
Join Date: Jan 2011
Location: NC, USA

iTrader: (1)

Nice, glad I could help!
Appreciate 0
      09-14-2013, 06:34 PM   #4
tomkiti
New Member
United_States
0
Rep
8
Posts

Drives: 2011 AW 135i Coupe
Join Date: Jul 2010
Location: Columbia, Maryland

iTrader: (0)

Helped me, too. Thanks!
Appreciate 0
      09-16-2013, 03:19 PM   #5
pj.rodriguez
Lieutenant Colonel
pj.rodriguez's Avatar
Canada
83
Rep
1,623
Posts

Drives: Alpine White 128i Cabrio
Join Date: Jun 2013
Location: Toronto, Ontario, Canada

iTrader: (9)

Garage List
I am planning on doing this next weekend. thanks!
Appreciate 0
      06-29-2014, 12:54 PM   #6
mike082802
Major
114
Rep
1,002
Posts

Drives: 2010 135
Join Date: Feb 2014
Location: ny

iTrader: (2)

did this yesterday but i tightened the drivers side a little too much. i thought it rotated but after a drive i smelt brakes and the driver rear ri had a decent amount of break dust. while driving there was a hum so i puled up on the brake and it went away after a few light pulls while driving around 50. it does still vibrate if i pull it while driving. got home and yanked it up and down a few times and now it feels as it did before i adjusted it. any suggestions?
thanks
Appreciate 0
      06-29-2014, 02:07 PM   #7
Ihave1
Private First Class
United_States
42
Rep
159
Posts

Drives: 2008 135i
Join Date: Jan 2011
Location: NC, USA

iTrader: (1)

You may have burned up the pads or gunked up the mechanism inside the rotor if you drove too long with it partially engaged. It may be a good idea to pull off the brake rotor and take a look. Just remove the wheel and there is a hex bolt that holds on the brake rotor. Be careful since the head strips easily. Hit it with some PB blaster before you go at it. If it strips you need to drill out the head. I replaced mine with stainless steel so that they wont strip again. That single screw is all that holds the rotor on since the wheel lug bolts do the actual holding. The rotor will then slide right off and you can check out the parking brake pads. You can probably clean out some of the gunk. If you use any chemicals make sure not to get lube on the pads. I would just blast it out with brake parts cleaner. Don't breathe in the dust!
Appreciate 0
      07-05-2014, 01:08 AM   #8
mike082802
Major
114
Rep
1,002
Posts

Drives: 2010 135
Join Date: Feb 2014
Location: ny

iTrader: (2)

wonder if i can pull the rotor off without taking the caliper off, going to try tomorrow
Appreciate 0
      05-01-2015, 08:44 AM   #9
krugerjq
Private First Class
South Africa
8
Rep
126
Posts

Drives: X3 2d M Sport, F800GS
Join Date: Feb 2006
Location: South Africa

iTrader: (0)

Worked like a charm. Thank you
Appreciate 0
      05-01-2015, 08:46 AM   #10
Ihave1
Private First Class
United_States
42
Rep
159
Posts

Drives: 2008 135i
Join Date: Jan 2011
Location: NC, USA

iTrader: (1)

Quote:
Originally Posted by krugerjq View Post
Worked like a charm. Thank you
Glad I could help!
Appreciate 0
      10-14-2015, 10:32 AM   #11
prof.2
Private
11
Rep
81
Posts

Drives: 2013 128i Convertible
Join Date: Jul 2015
Location: Columbus Ohio

iTrader: (7)

Thanks

Thank You. It really helped.
Appreciate 0
      10-26-2015, 07:25 AM   #12
TheRedBaroness
Private
TheRedBaroness's Avatar
United_States
2
Rep
52
Posts

Drives: 2011 135i
Join Date: Sep 2010
Location: MA

iTrader: (0)

I just changed my rear pads and rotors this weekend -- this post was a life saver! Thank you for taking the time to put it together.

This may be my lack of ability to translate (this was my first time doing brakes) but is it possible to use the Driver Side / Passenger Side terminology in describing the wheel?

If it helps, I have attached a picture of the passenger side wheel showing the spring location.
Attached Images
 
__________________
Laura
2011 135i, 6-Speed
2007 328xi, 6-Speed (Retired)
Appreciate 0
      10-26-2015, 07:37 AM   #13
Ihave1
Private First Class
United_States
42
Rep
159
Posts

Drives: 2008 135i
Join Date: Jan 2011
Location: NC, USA

iTrader: (1)

Quote:
Originally Posted by The Red Baroness View Post
I just changed my rear pads and rotors this weekend -- this post was a life saver! Thank you for taking the time to put it together.

This may be my lack of ability to translate (this was my first time doing brakes) but is it possible to use the Driver Side / Passenger Side terminology in describing the wheel?

If it helps, I have attached a picture of the passenger side wheel showing the spring location.
Glad I could help! The reason left and right is typically used is because the driver side and passenger side changes between different countries. Some countries have the driver on the right side of the car and some on the left. Using the term left and right is always the same. The left side of the car is from the point of view when sitting in the car. See my image below.
Attached Images
 
Appreciate 1
Blau333.00
      10-26-2015, 10:57 AM   #14
TheRedBaroness
Private
TheRedBaroness's Avatar
United_States
2
Rep
52
Posts

Drives: 2011 135i
Join Date: Sep 2010
Location: MA

iTrader: (0)

Quote:
Originally Posted by Ihave1 View Post
Glad I could help! The reason left and right is typically used is because the driver side and passenger side changes between different countries. Some countries have the driver on the right side of the car and some on the left. Using the term left and right is always the same. The left side of the car is from the point of view when sitting in the car. See my image below.

Thanks! That really helps. DIY car maintenance is new to me, so this was a great clarifying point!
__________________
Laura
2011 135i, 6-Speed
2007 328xi, 6-Speed (Retired)
Appreciate 0
      10-29-2015, 09:10 PM   #15
BMWFanofone
Registered
0
Rep
3
Posts

Drives: BMW 1 Series
Join Date: Oct 2015
Location: Glendale

iTrader: (0)

Really useful DIY... Thanks OP!!!
Appreciate 0
      10-29-2015, 09:15 PM   #16
Ihave1
Private First Class
United_States
42
Rep
159
Posts

Drives: 2008 135i
Join Date: Jan 2011
Location: NC, USA

iTrader: (1)

Glad I can help out. Just FYI I made it a little to tight on my first adjustment and it would stick and make a loud pop when I first started driving. If this happens to you, just loosen off each e-brake pad a bit.
Appreciate 0
      11-02-2015, 09:44 AM   #17
krando67
New Member
5
Rep
9
Posts

Drives: '10 128i N51 Black
Join Date: Oct 2015
Location: Norfolk, VA

iTrader: (0)

Great post OP! Very helpful.
Appreciate 0
      08-19-2016, 11:39 AM   #18
135ivert
Lieutenant
64
Rep
521
Posts

Drives: E88 135i,E70 X5M,E93 M3
Join Date: Mar 2013
Location: Colorado

iTrader: (1)

One note I'd like to add for clarity: the parking brake must be fully released (down) when compressing or releasing the adjustment spring.
Appreciate 0
      05-15-2017, 01:41 PM   #19
lights966
Registered
Croatia
0
Rep
1
Posts

Drives: BMW 320d F30
Join Date: May 2017
Location: Croatia

iTrader: (0)

Perfectly described.
Thanks
Appreciate 0
      05-15-2017, 02:06 PM   #20
MightyMouseTech
Major General
MightyMouseTech's Avatar
4335
Rep
6,196
Posts

Drives: 13 135i 6MT LeMans Blue MSport
Join Date: Feb 2013
Location: Ottawa, Canada

iTrader: (0)

Going to do my car this weekend. Main reason is I am tired of the squeaking noise when the parking brake is applied, and I get in and out of the car. A little dab of moly grease between the shoe and the backing plate where they make contact will get rid of that noise.
Appreciate 0
      03-18-2018, 02:59 PM   #21
Welcome to NBA Jam
Is it the shoes!?
Welcome to NBA Jam's Avatar
3884
Rep
5,113
Posts

Drives: (Sold) 2011 E92 335i ZMP 6MT
Join Date: Mar 2014
Location: USA

iTrader: (1)

Thanks for this guide. I didn't have a long enough screwdriver, so I ended up removing the wheel entirely to do it. I found it very helpful doing it that way for the first time, since it was much easier to see if I was actually moving the star wheel. Now that I know what to feel for, I can do it without full removal.
Appreciate 1
AndyW650.00
      03-21-2018, 08:17 PM   #22
AndyW
Supreme Galactic Commander (one galaxy over...)
AndyW's Avatar
United_States
650
Rep
1,771
Posts

Drives: '08 E93, '12 E82, '13 E93 M3
Join Date: Feb 2012
Location: Washington, USA

iTrader: (5)

Thx for this thread. Kinda frustrated. Had the dealership adjust this today, among other things. Heard some rubbing on the drive home but didn't sound catastrophic. When I slowed down into my drive there were clunks and squeals coming from the rear and when I stopped, the passenger side rotor was too hot to touch. I released the tension on the spring (as in step one above) and removed the wheels. Both sides sound like something is scraping and "not right". I also can't seem to see the adjustment knob through the wheel bolt holes. Problem now is that I want to remove the rotors to inspect before I take it back to the dealer, but I can't even get the one off that wasn't as hot (drivers). I've removed the caliper and the allen bolt...no joy. Tried a number of impact blows...no joy. Any advice on how to get a stuck rotor off?

I am pretty pissed...once I am convinced it is safe to drive, I am taking it back to the dealer and having them replace everything associated with the parking brakes in each rotor. Should I have them inspect/replace the wheel bearings? Anything else?
__________________
Best,
Andy

'12 E82-PS2,Stoptechs,Clubsports+M3 bits,Accusump,Wagner DP+EVO III FMIC,ERCP,BMS Intake,Mason Strut Bar,Wedge Tune
Appreciate 0
Post Reply

Bookmarks

Tags
adjust, brake, emergency, parking

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 12:11 PM.




1addicts
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST