Member Since: 04 Sep 2016
Location: England
Posts: 40
Loud binding noise and shudder.....
Hello, so there is a weird sqreeching/binding noise that very occasionally comes from the rear of the car. You also get a shudder at the same time, sounds very similar to ABS kicking in. It has only happened 4-5 times in the last year, but when it happens it very loud.
When you depress the clutch, there is no more problems, but as you accelerate it gets quicker and louder. All the way until about 3rd gear and stops. It then drives absolutely fine, and seems to forget it had a problem.
What I have noticed is that it has only done this when Iv driven low speed over gravel, or pulling away. Always seems to be on dirt roads or gravel though.
When it occurs, you have to "drive through it", which sounds aweful, until out of low speed. The only other sign is if you try to accelerate hard from the spot, which I don't normally do, you will get a progressive shudder until up to speed.
Any help would be great
12th Mar 2017 9:57 pm
Dave T
Member Since: 03 Jul 2009
Location: Glasgow
Posts: 6902
My guess would be epb shoes, perhaps binding slightly, or the shoe material can become detachedJoined the BMWX5 45e group
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12th Mar 2017 9:59 pm
phil123
Member Since: 04 Sep 2016
Location: England
Posts: 40
Hi Dave, my initial thoughts were brake related, it sounds like that. The only thing making me think otherwise is just how loud it is. How easy is it to get to the shoes to have a look?
I would guess epb also The happiest of people don't necessarily have the best of everything;
They just make the best of everything they have.
13th Mar 2017 8:40 am
phil123
Member Since: 04 Sep 2016
Location: England
Posts: 40
Thanks for the feedback, when the noise and vibration has occurred I have not actually applied the parking brake?? Does this sound odd, or if the EPB is faulty could it still cause the problem without being selected?
Cheers
13th Mar 2017 10:21 am
Dave T
Member Since: 03 Jul 2009
Location: Glasgow
Posts: 6902
I make a point of always using it, even though it doesn't have to be. It can become stiff and it may just catch on the odd occasion. Look at posts by Bodsy and get his brake bible out, shows you how to clean and inspect it. It is a little more difficult than some as you need to remove the rear discs, but is doable with a little mechanical knowledge.
Certainly the place to start if only to eliminate itJoined the BMWX5 45e group
1994 Defender 90
2015 RRS Corris Grey/Black roof
2016 D4 Graphite Santorini Black
2012 D4 XS Orkney Grey
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13th Mar 2017 1:25 pm
phil123
Member Since: 04 Sep 2016
Location: England
Posts: 40
Cheers Dave, I think your right, start with the brakes and go from there.
Thanks for your help
13th Mar 2017 2:16 pm
phil123
Member Since: 04 Sep 2016
Location: England
Posts: 40
So I've done some further investigation...I put the car into rock crawl mode and drove it around a gravel driveway. The front differential was constantly locking up and flashing orange in the 4x4 screen. This was exactly the same sensation I was getting randomly before.
My rear diff was not locking so I'm guessing it dosnt have locking rear diff?? Does this mean the front differential have gone or going or something else making it lock up?
Any ideas would be great thanks
13th Mar 2017 5:14 pm
WINDSWEPTISLANDER
Member Since: 21 Jul 2011
Location: Way up north
Posts: 523
If you put it in to rock crawl mode that will lock the diffs, and you will get the symptoms you described. For that I politely suggest reading the manual.
For the initial symptom reported, I also suspect EPB shoes, used or not, applied or not. I had these exact symptoms and it eventually transpired that it was all caused by a corroded retaining in mening that the shoes were just resting in the hub.
If it is the shoes then swift action saves money in the long run. I was too late looking to mine and the hand brake cable had chaffed such that it failed shortly after I replaced the failed components.
13th Mar 2017 5:28 pm
phil123
Member Since: 04 Sep 2016
Location: England
Posts: 40
Hi, yes I agree I will start with the brakes and go from there. I know that rock crawl mode locks the doffs but I'm just trying to understand if there may be a fault with the diff as it appears to be locking up in normal operation. I wondered if there was another thing that could cause the diff
To lock up and cause this to happen?
Thanks for the help
13th Mar 2017 5:51 pm
Hocks172
Member Since: 29 Mar 2014
Location: Brighton
Posts: 556
Have you got the rear locking diff? as i had ver similar symptoms and it turned out to be the actuator on the diff needed replacing? worth a check.
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13th Mar 2017 8:26 pm
phil123
Member Since: 04 Sep 2016
Location: England
Posts: 40
Hocks172 I'm not sure if mine has a locking rear dif or not, how is the easiest way to find out? Also when your actuator was replaced was it just the actuator or the whole differential?
Cheers
13th Mar 2017 10:11 pm
Hocks172
Member Since: 29 Mar 2014
Location: Brighton
Posts: 556
It was just the actuator still quite expensive I think £385+vat +fitting, as to checking apparently there is a wire going into the diff looking through one of the wheel arches, I noticed through there being a second padlock symbol on the 4x4 screen.
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13th Mar 2017 10:33 pm
Alan B
Member Since: 12 Feb 2013
Location: Fife
Posts: 6528
But what if you don't have the 4x4 screen?
Any other way of telling?D3 57 xs Stornaway grey
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13th Mar 2017 10:39 pm
phil123
Member Since: 04 Sep 2016
Location: England
Posts: 40
Just been and checked and it is not a locking rear differential..
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