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Model specific boards => Golf mk8 => Topic started by: mcchan723 on 13 June 2023, 16:12

Title: MK8 GTI Grinding Noise from Right Driver Side
Post by: mcchan723 on 13 June 2023, 16:12
I got this brand new MK8 GTI on 7 June 2023 and completely normal on highway, and smooth road no matter in high speed corner or low speed corner. Except on bumpy road as the videos I uploaded in google drive. Have a look if interested.
Dealer already had a check and said the car still in run-in period so nothing useful recommendation. But I don't found this is normal.

https://drive.google.com/drive/folders/1H4PAevN6h_rDWaPKq9JiKzbW9i35T60Z?usp=sharing (https://drive.google.com/drive/folders/1H4PAevN6h_rDWaPKq9JiKzbW9i35T60Z?usp=sharing)
Title: Re: MK8 GTI Grinding Noise from Right Driver Side
Post by: fredgroves on 13 June 2023, 20:29
Yup, thats the noise mine makes - its when you corner and the suspension unloads.

My dealer can't hear it and can't see anything wrong.

Sounds metal on metal to me!
Title: Re: MK8 GTI Grinding Noise from Right Driver Side
Post by: Carlosfandango on 13 June 2023, 22:00
Yup, thats the noise mine makes - its when you corner and the suspension unloads.

My dealer can't hear it and can't see anything wrong.

Sounds metal on metal to me!

Mine makes this noise on certain bends on a route I take regularly, I believe it is the ABS briefly kicking in, it does it wet or dry, but always at the same point of the same two bends I drive through, I haven’t done so yet, but to confirm my suspicion, I intend to hook up VCDS and watch the live data of the ABS module when it does it.
Title: Re: MK8 GTI Grinding Noise from Right Driver Side
Post by: mcchan723 on 14 June 2023, 00:05
Yup, thats the noise mine makes - its when you corner and the suspension unloads.

My dealer can't hear it and can't see anything wrong.

Sounds metal on metal to me!

Mine makes this noise on certain bends on a route I take regularly, I believe it is the ABS briefly kicking in, it does it wet or dry, but always at the same point of the same two bends I drive through, I haven’t done so yet, but to confirm my suspicion, I intend to hook up VCDS and watch the live data of the ABS module when it does it.

Yes, it is road specific, by far I only have this noise in this route. I had a test drive with the dealer once in other route and they couldn’t replicate the noise. How long did you experienced this noise?

I also found that yesterday the noise would kick in two consecutive times after the engine start for few minutes. But the noise is relatively mild.
Title: Re: MK8 GTI Grinding Noise from Right Driver Side
Post by: Carlosfandango on 18 June 2023, 10:29
This noise is definitely the ABS working without pedal input, probably the XDS system operating, if you get up to speed and lightly rest your foot on the brake pedal at the usual place your car makes the noise, you’ll feel the ABS ‘buzz’ through the pedal when the noise occurs.
Title: Re: MK8 GTI Grinding Noise from Right Driver Side
Post by: fredgroves on 18 June 2023, 20:42
Could be vdm related?

I wonder if you set the esc to off it would do it still?
Title: Re: MK8 GTI Grinding Noise from Right Driver Side
Post by: mcchan723 on 19 June 2023, 16:25
This noise is definitely the ABS working without pedal input, probably the XDS system operating, if you get up to speed and lightly rest your foot on the brake pedal at the usual place your car makes the noise, you’ll feel the ABS ‘buzz’ through the pedal when the noise occurs.

Thank you for sharing. I tried in parking lot and I can feel the "buzz" from the break pedal and heard the noise kicked in once during the first circle after start only. After than just "buzz" without any noise. Anyway I will ask the dealer to check about the ABS specifically.
Title: Re: MK8 GTI Grinding Noise from Right Driver Side
Post by: mcchan723 on 21 June 2023, 13:28
Could be vdm related?

I wonder if you set the esc to off it would do it still?

I tried to drive thru the same route with the ESC off today and the noise disappeared. 
Title: Re: MK8 GTI Grinding Noise from Right Driver Side
Post by: fredgroves on 21 June 2023, 17:20
Could be vdm related?

I wonder if you set the esc to off it would do it still?

I tried to drive thru the same route with the ESC off today and the noise disappeared.

Thats interesting.

Did you try turning round and repeating the same piece of road with on and off a few times?
Title: Re: MK8 GTI Grinding Noise from Right Driver Side
Post by: mcchan723 on 25 June 2023, 14:34
Could be vdm related?

I wonder if you set the esc to off it would do it still?

I tried to drive thru the same route with the ESC off today and the noise disappeared.

Thats interesting.

Did you try turning round and repeating the same piece of road with on and off a few times?

Yes.
Title: Re: MK8 GTI Grinding Noise from Right Driver Side
Post by: fredgroves on 26 June 2023, 15:44
Thats very interesting...

I've just got back from a trip out and it was doing it a fair bit.

Is the ABS unit somewhere right front? Is that what I hear? It can't be just braking the right front can it?

Do you find its only doing it when you are driving calm and slow? I've never heard it do it when I'm on it... (observing the speed limits at all times, naturally)
Title: Re: MK8 GTI Grinding Noise from Right Driver Side
Post by: Carlosfandango on 26 June 2023, 21:52
Thats very interesting...

I've just got back from a trip out and it was doing it a fair bit.

Is the ABS unit somewhere right front? Is that what I hear? It can't be just braking the right front can it?

Do you find its only doing it when you are driving calm and slow? I've never heard it do it when I'm on it... (observing the speed limits at all times, naturally)

I’ve only ever noticed it in mine while driving normally, it may well do it at other times but I’ve not noticed it do so, it just seems to do it on the same two (consecutive) left hand bends at around 45-50mph.
Title: Re: MK8 GTI Grinding Noise from Right Driver Side
Post by: mcchan723 on 28 June 2023, 16:40
Thats very interesting...

I've just got back from a trip out and it was doing it a fair bit.

Is the ABS unit somewhere right front? Is that what I hear? It can't be just braking the right front can it?

Do you find its only doing it when you are driving calm and slow? I've never heard it do it when I'm on it... (observing the speed limits at all times, naturally)

I’ve only ever noticed it in mine while driving normally, it may well do it at other times but I’ve not noticed it do so, it just seems to do it on the same two (consecutive) left hand bends at around 45-50mph.

Have you tried to turn off ESC as well?
Title: Re: MK8 GTI Grinding Noise from Right Driver Side
Post by: Carlosfandango on 29 June 2023, 21:46
Thats very interesting...

I've just got back from a trip out and it was doing it a fair bit.

Is the ABS unit somewhere right front? Is that what I hear? It can't be just braking the right front can it?

Do you find its only doing it when you are driving calm and slow? I've never heard it do it when I'm on it... (observing the speed limits at all times, naturally)

I’ve only ever noticed it in mine while driving normally, it may well do it at other times but I’ve not noticed it do so, it just seems to do it on the same two (consecutive) left hand bends at around 45-50mph.

Have you tried to turn off ESC as well?

I haven’t had chance yet, but I do intend to try it, will post back here once I’ve done so.
Title: Re: MK8 GTI Grinding Noise from Right Driver Side
Post by: fredgroves on 30 June 2023, 09:37
So while the noise is annoying, its clearly part of ESC and is just a function of the car.

I'm not terribly keen on turning that off because a) I'm not on a track b) I don't want to die.

I'm happy its not a fault and can just disregard the noise now...
Title: Re: MK8 GTI Grinding Noise from Right Driver Side
Post by: Carlosfandango on 01 July 2023, 07:43
So while the noise is annoying, its clearly part of ESC and is just a function of the car.

I'm not terribly keen on turning that off because a) I'm not on a track b) I don't want to die.

I'm happy its not a fault and can just disregard the noise now...

Agreed, I’ve always disregarded the noise anyway, as to me it was always the ABS system working in some way, i’ve now had time to try it out, and I’ve not been able to replicate the noise while the ESC is turned off, so as far as I’m concerned, that confirms it.
Title: Re: MK8 GTI Grinding Noise from Right Driver Side
Post by: Carlosfandango on 07 October 2023, 10:39
Just to add to this, I had the software updated to 1941 by the dealer a couple of weeks ago, this noise has not occurred since then.
Title: Re: MK8 GTI Grinding Noise from Right Driver Side
Post by: fredgroves on 09 October 2023, 12:15
Thats weird. I have no idea why a 5F controller (infotainment) upgrade will fix that... unless with the 5F you also got some other modules updated...

I'm getting a new 5F later this month, maybe its going to have newer software too...
Title: Re: MK8 GTI Grinding Noise from Right Driver Side
Post by: Carlosfandango on 09 October 2023, 19:33
Thats weird. I have no idea why a 5F controller (infotainment) upgrade will fix that... unless with the 5F you also got some other modules updated...

I'm getting a new 5F later this month, maybe its going to have newer software too...

I spoke too soon! It did it again today, as you say, it would have been rather weird if it the 5F update had actually effected it.
Title: Re: MK8 GTI Grinding Noise from Right Driver Side
Post by: Carlosfandango on 02 November 2024, 12:44
Just to add to this.. my 8.5 GTI does not do this, so must have been a fault or poor coding in the Mk8.