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Tyre feathering

Posted: Tue Aug 18, 2020 4:46 pm
by Busa1400
Anyone notice tyre feathering on the rear wheels ???

Re: Tyre feathering

Posted: Thu Aug 20, 2020 7:32 am
by quattro
Hi,
can you describe it better?
I was just to open a new 3D because I’m actually in the alps, 4K km, and I’ve started to heard some noise from from the rear axle when pushing hard in small corners and while braking/releasing. Not yet understand if it’s the optional sport differential natural noise, an issue, or something related to tyres. Anyone noticed it?


Inviato dal mio iPhone utilizzando Tapatalk

Re: Tyre feathering

Posted: Thu Aug 20, 2020 11:59 am
by Jubilee77
Hi quattro,
I returned from Morzine last week, great driving roads.
I have the optional DRC suspension. When I first got the car in March the rear suspension started squeaking and drove me nuts. The dealers were all on lockdown so I had a look at it myself. I noticed that the yellow rubber dampers had both dropped out of the aluminium cast sockets attached to the body. I put some silicone grease on them and managed to get them both back into position , problem solved! No noise now and they haven’t dropped out since.

Re: Tyre feathering

Posted: Thu Aug 20, 2020 12:01 pm
by Jubilee77
quattro wrote:
Thu Aug 20, 2020 7:32 am
Hi,
can you describe it better?
I was just to open a new 3D because I’m actually in the alps, 4K km, and I’ve started to heard some noise from from the rear axle when pushing hard in small corners and while braking/releasing. Not yet understand if it’s the optional sport differential natural noise, an issue, or something related to tyres. Anyone noticed it?


Inviato dal mio iPhone utilizzando Tapatalk
Hi quattro,
I returned from Morzine last week, great driving roads.
I have the optional DRC suspension. When I first got the car in March the rear suspension started squeaking and drove me nuts. The dealers were all on lockdown so I had a look at it myself. I noticed that the yellow rubber dampers had both dropped out of the aluminium cast sockets attached to the body. I put some silicone grease on them and managed to get them both back into position , problem solved! No noise now and they haven’t dropped out since.

Tyre feathering

Posted: Thu Aug 20, 2020 12:35 pm
by quattro
It doesn’t sound as the damper, but will check.
It’s much more a mechanical continued noise/whistle. For a moment I tought it was a form of rubbing even if I have no spacers Installed. The car is working perfectly, I’m having great drives, but I don’t know if the noise is part of the sport differential (Subaru once has this typical noise) or a damaged bearing somewhere.


Inviato dal mio iPhone utilizzando Tapatalk

Re: Tyre feathering

Posted: Thu Aug 20, 2020 10:20 pm
by Jubilee77
Check the tyre pressures, I read something about LSD noise when the tyre pressures were not matched each side? What tyres are fitted to your car? Mine has Continental’s

Re: Tyre feathering

Posted: Sun Aug 23, 2020 12:40 am
by RS4John
I found that the RS4 is especially susceptible to chassis alignment issues - those enormous wheels and tyres exert tremendous loads on the suspension components. You should, ideally, get a 4 wheel alignment check done annually - you will likely find that it's out by quite a bit - transforms the handling, so much sharper when all the wheels are pointing in the same direction !