Factory JCW Talk (2009+) Discussion of the factory-built 2nd Gen JCW MINI Cooper S, and all unique aspects of this trim.

Reoccurring brake vibration.

  #1  
Old 01-19-2019, 10:17 AM
woopah
woopah is offline
1st Gear
Thread Starter
Join Date: Jul 2015
Posts: 15
Likes: 0
Received 0 Likes on 0 Posts
Reoccurring brake vibration.

So here's the scoop, I've got a reoccurring vibration while braking in my 2011 JCW R55.
initially thought it to be a run of the mill rotor issue, so I replaced front and rear with OEM pads and oe supplier (textar) rotors since i'd just picked up the car figured why not?
and the vibration went away for a time. then comes back, check the runout of rotors, out of spec. suspecting quality control issue, replaced with genuine Mini rotors.
vibration goes away for a longer time. now back at full force.

no lights on dash, but harsh shaking in steering wheel consistent with vehicle/wheel speed about 90% of the time.
Had it up on a lift, and couldn't find any obvious culprits, and braking system passes all actuation tests.

when the calipers were off for pad replacement, all pistons slid back in without issue.

anyone else run into this kind of issue? I actually might resort to taking it to a dealer at this point...
 
  #2  
Old 01-19-2019, 05:47 PM
cooper48's Avatar
cooper48
cooper48 is offline
4th Gear
Join Date: Jul 2018
Location: DFW
Posts: 470
Received 72 Likes on 70 Posts
Given what you've already replaced, I would put money on bad wheel hubs/bearings. Jack the car up and try moving the tire left/right with your hands. A bad hub/bearing will ID itself with excess play (it shouldn't move at all).
 
  #3  
Old 01-20-2019, 07:52 AM
woopah
woopah is offline
1st Gear
Thread Starter
Join Date: Jul 2015
Posts: 15
Likes: 0
Received 0 Likes on 0 Posts
i was kinda thinking that too, but the problem only presents itself during braking, though the car has 146k on it so it wouldn't surprise me since the rear bearings already took a dump.

last night i got it to happen very rhythmically at low speed, almost feels like the clunking of an axle joint. still the weird part being that after new rotors were installed, it went away.

... more on this as it develops
 
  #4  
Old 01-21-2019, 09:24 PM
v10climber
v10climber is offline
6th Gear
iTrader: (1)
Join Date: May 2013
Location: FL
Posts: 1,394
Likes: 0
Received 13 Likes on 12 Posts
Are you properly cleaning the hub faces of rust build up when you put the new rotor on? That can cause run out that isn't the fault of the rotor.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
jecmini
Stock Problems/Issues
6
03-25-2018 05:54 AM
rgeoc
1st Gear
0
07-24-2016 01:16 PM
dianna912
R56 :: Hatch Talk (2007+)
6
09-30-2014 02:02 PM
CARdiac
Stock Problems/Issues
4
12-30-2009 09:30 AM
littlecS
Drivetrain (Cooper S)
3
02-28-2007 02:29 PM


Thread Tools
Search this Thread
Quick Reply: Reoccurring brake vibration.


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: