[HighlandPete]

Originally Posted by Haradrim

Thank you, so i think that these disks increase the friction and not permitting any movement on hub or disc surface.

With my investigations, some dealers uses this friction disks for click sound coming from wheelhubs or brakes.

So can we think there was a factory based problem on hubs of g30?

The brake "clicking" is covered under SI B34 05 17 September 2017

Defined as "Microscopic slippage of contact surface interface between inner brake disc and wheel bearing flange on vehicles equipped with lightweight brake disc".

The friction ring goes between the wheel bearing flange and the inner side of the brake disc hat.

[eightball805]

I am looking to get some of the friction discs, everyone has them for $50, is that for 1?

[eightball805]

Ho Lee Schmidt, I just did this to my car and it cut it down by around 90%. It's a bit ridiculous something so simple fixed an issue plaguing so many. I think I might put a layer of Aluminum tape on the hubcentric shaft to be a slightly more permanent fix than elastic tape.

[Haradrim]

Originally Posted by eightball805

Ho Lee Schmidt, I just did this to my car and it cut it down by around 90%. It's a bit ridiculous something so simple fixed an issue plaguing so many. I think I might put a layer of Aluminum tape on the hubcentric shaft to be a slightly more permanent fix than elastic tape.

Did you apply just just tape or disc? With disc will be better

[Mikej0h]

Would a wheels spacer kit from Eibach also work for this purpose?

[eightball805]

Originally Posted by Haradrim

Did you apply just just tape or disc? With disc will be better

I don't have discs yet, haven't ordered yet. do they come as a set of 2 or sold individually?

[Haradrim]

Originally Posted by eightball805

I don't have discs yet, haven't ordered yet. do they come as a set of 2 or sold individually?

They sold by unit.

So need to order 4 pcs for certain results

[Frenchstar-57]

Originally Posted by Haradrim

They sold by unit.

So need to order 4 pcs for certain results

Update : I confirm, i added 2 disc on the front axle, and it became smooth
to resume : with 4 frictions disc and 4 layer of 3M vinyl tape per hub, for the moment vibration gone

[Haradrim]

Originally Posted by Frenchstar-57

Update : I confirm, i added 2 disc on the front axle, and it became smooth
to resume : with 4 frictions disc and 4 layer of 3M vinyl tape per hub, for the moment vibration gone

Thank you for i am very happy to hear that.

I really wonder is the problem solved without tapes also 😂

[Frenchstar-57]

Originally Posted by Frenchstar-57

Update : I confirm, i added 2 disc on the front axle, and it became smooth
to resume : with 4 frictions disc and 4 layer of 3M vinyl tape per hub, for the moment vibration gone

I have a theory : when i bought my car by BMW, i noticed none vibration, and the vibration came when i changed my tire after a flat. right after i came back to the mechanics because of the vibration, so they rebalanced the tire etc, with no significants results. And Now with the exactly the same tires, i added the disc and the vibration gone!maybe before the flat, the wheels were simply tighten with >140NM torque force (maybe 150NM)and this was enough to prevent vibration.
do NOT TRY, IT JUST A THEORY, a torque > 140 NM could make damages

[Frenchstar-57]

Originally Posted by Frenchstar-57

I have a theory : when i bought my car by BMW, i noticed none vibration, and the vibration came when i changed my tire after a flat. right after i came back to the mechanics because of the vibration, so they rebalanced the tire etc, with no significants results. And Now with the exactly the same tires, i added the disc and the vibration gone!maybe before the flat, the wheels were simply tighten with >140NM torque force (maybe 150NM)and this was enough to prevent vibration.
do NOT TRY, IT JUST A THEORY, a torque > 140 NM could make damages

maybe 140NM torque + discs create the good friction coefficient between hub and wheel
and 150NM (for example) and none discs create the good friction coefficient too

[Haradrim]

Originally Posted by Frenchstar-57

I have a theory : when i bought my car by BMW, i noticed none vibration, and the vibration came when i changed my tire after a flat. right after i came back to the mechanics because of the vibration, so they rebalanced the tire etc, with no significants results. And Now with the exactly the same tires, i added the disc and the vibration gone!maybe before the flat, the wheels were simply tighten with >140NM torque force (maybe 150NM)and this was enough to prevent vibration.
do NOT TRY, IT JUST A THEORY, a torque > 140 NM could make damages

So how about this, when i got my car with pirelli p7's the vibration was very high and speed between 105-125km/h, after got new sets of bridgestone er300 vibrations decreased cut off for 500km then return back on 130-150 km/h speed. So strange

[Haradrim]

Here we go, got the discs will mount them monday

[Frenchstar-57]

Originally Posted by Haradrim

Here we go, got the discs will mount them monday

i remove the rubber of my hubs, only 4 friction discs and it's okay
but you have to center the wheel perfeclty! one bolt at 12 am and tight by hand the maximum, and shake the wheel to adjust, then the other bolt by hand, and then tight with the cross by hand, and finally the torque wrench 140nm ( if possible when the wheel are suspended in air)

[S6F]

Hi, where do you get these friction disks? Like to try them. Thanks.

[Haradrim]

Originally Posted by Frenchstar-57

i remove the rubber of my hubs, only 4 friction discs and it's okay
but you have to center the wheel perfeclty! one bolt at 12 am and tight by hand the maximum, and shake the wheel to adjust, then the other bolt by hand, and then tight with the cross by hand, and finally the torque wrench 140nm ( if possible when the wheel are suspended in air)

Hi there, thank you all the guide will apply tomorrow step by step. Now i just have 2 pieces of these discs, according to the my results will demand 2 more.

Let you now tomorrow, are you happy with the results by 4 discs?

[Haradrim]

Originally Posted by S6F

Hi, where do you get these friction disks? Like to try them. Thanks.

Hello, i got them from dealer under the warranty, you can order sepparately from your local dealer or bmw genuine part seller

If you car is g3x series the number of the part is: 34106884839

[Frenchstar-57]

Originally Posted by Haradrim

Hi there, thank you all the guide will apply tomorrow step by step. Now i just have 2 pieces of these discs, according to the my results will demand 2 more.

Let you now tomorrow, are you happy with the results by 4 discs?

i did a 400 km travel and i was happy, you need 4 discs, no rubber, and a perfect centering

[Haradrim]

Originally Posted by Frenchstar-57

i did a 400 km travel and i was happy, you need 4 discs, no rubber, and a perfect centering

Hi

placed disk on rear today with sensetive centering as you describe.

Front still have rubber only. Vibrations %95 gone, only front little vibrates rarely.

Ordered front discs and waiting to mount them.

VERY HAPPY TODAY 😂

[Frenchstar-57]

Originally Posted by Haradrim

Hi

placed disk on rear today with sensetive centering as you describe.

Front still have rubber only. Vibrations %95 gone, only front little vibrates rarely.

Ordered front discs and waiting to mount them.

VERY HAPPY TODAY 😂

It's a good news ! a centering tools kit exist by bmw, i ordered it today

[Frenchstar-57]

Originally Posted by Frenchstar-57

It's a good news ! a centering tools kit exist by bmw, i ordered it today

centering tool :83302459458

[G50]

Originally Posted by Frenchstar-57

centering tool :83302459458

Would this not work on its own without the need for the friction disks?

My current G31 is vibration free, but my old G30 had vibrations with 2 different sets of wheels and tyres.

I was going to change the wheels on my current G31 to something more to my taste, however I don't want to risk gaining vibrations when currently I have none!