Audi RS2 owners: problem with rubbing issue from the rear?

[Harmon Rabb]

The shock cannot make it rub the hub carrier even if its broken in 2.

If the noise changes on and off load, it is very likely the wheel bearing as I suggested in post 2. You will hear a bearing long before you can feel play in it.

If you are convinced its the tyre rubbing, try a spacer or other wheels.

If your tracking is out, then you may experience increased tyre squeal with the contact with the road.

As said before though. Caster. Camber. Tow. Broken shock. None can make the tyre hit the hub carrier. This can only be that the tyre is too big (height or width or both), wrong offset wheel, a worn bearing possibly or the hub carrier itself being bent.

Is the noise there at all speeds? Does it get better or worse with distance (heat)?

It´s not possible to hear the sound when the speed increase. But it could still be there but transmission/engine/road sound makes it impossible to hear it. The sound gets worse with distance (heat).

The 225/45/17 tire should work as should the OEM Cup rims. The rims have been refurbished last year and are in as new condition. Have not tried the 16" winter rims on the car after the calibers where refurbished but I know that the specific sound was there before. The refurbished calibers did not make that sound disappear. Without really knowing the 16" tire should be less likely to rub against the hub if there are nothing wrong with the hub itself. Cant really tell by looking at it. Its hard to say if there are much difference between right and left hub if any. it´s easy to be fooled when trying to figure out the real issue.

Seems that the problem could be a worn bearing. I find it hard to believe that the hub carrier has been bent. I have not hit anything that hard or fast. How about a warped rear disc could it be a source of the sound/rubbing? Had a big issue with sound coming from the brakes before the calibers where refurbished due to corrosion pushing out the brake pads. I had to brake really hard to get the sound go away. It kept coming back after a while until I brake hard again. That sound could be felt and heard at all speeds. It was silent until the car reached operating temperature. Then hell broke loose. I am glad thats no longer the issue.

[phoenix]

The original tire for the RS2 is the Dunlop SP8000 and 8080... is indicated on it 245/40/17, but it's a mistake the real size is 225/45/17

It's impossible and unlogical to put a 245 on a 7 inchs ! (7x2.54 = 17.78cm) 245 must be put on a 8 inchs minimum !

Me, i put 215/45/17 from michelin, it was very good !

In France, Audi recognized the mistake and creat a new paper for who have an RS2 and ask befoe going to the technical control !
In Switzerland, Audi dont care, but people from technical control, accept 225/45/17 or 215/45/17 without question !

the only thing you need to be careful is the weight supported by the tire ! You need to have the number 88 or above !

[simon20vq]

Only other thought's has something holding the handbrake shoes on the inside of the drum come off?
Are you running the right tyre pressures i.e. something like 38psi?

[Harmon Rabb]

Only other thought's has something holding the handbrake shoes on the inside of the drum come off?
Are you running the right tyre pressures i.e. something like 38psi?

Running the correct tyre pressure.

I did a audio recording while doing a short trip with the car. Drove around in first gear in circles. The sound sound is not there a full wheel circle like something is touching against something. In the end I increased the speed a bit. If I put the gear in neutral the sound is still there. There is just one problem. I don´t seem to be able to post the file here. I there anyone who can help out? Recorded with an iPhone. File type is (m4a) and it´s 493 kb and one minute long.

I can´t help to think that it has something to do with the brakes. Warped disc, a brake piston that don´t work as it should (but they are suppose to be as new). I hear that squeezing sound even if I have not used the brakes that much after a short trip. Handbrake issue has also come to mind. They seem to work perfect.

[madpugger]

Email me the file. Mike at madpuggers dot co dot uk

Ill post it up.

Sounds like the wheel bearing or brakes though from your descriptions.

[Harmon Rabb]

Email me the file. Mike at madpuggers dot co dot uk

Ill post it up.

Sounds like the wheel bearing or brakes though from your descriptions.

E-mail sent. Thank you.

[darkhorse1210]

I had similar issues when I first bought my RS2, my best guess would be that there is build up behind the piston which is preventing it returning to its natural starting point. The result is the piston forces the brake pad too close to the disc and you get rubbing.

I had the same symptoms, scraping a bit of squealing at low speed, particularly in traffic and then hardly noticeable at speed. The brake calipers need stripping down and cleaning out I think.

There will be old threads on here somewhere so see if you can locate them, I've in a rush now

[stocious]

Are these fitted to the rear on rs2,s
If so and corroded heavily or in pieces would make a rubbing sound off drive cv



How's your abs working also ?

[Harmon Rabb]

I had similar issues when I first bought my RS2, my best guess would be that there is build up behind the piston which is preventing it returning to its natural starting point. The result is the piston forces the brake pad too close to the disc and you get rubbing.

I had the same symptoms, scraping a bit of squealing at low speed, particularly in traffic and then hardly noticeable at speed. The brake calipers need stripping down and cleaning out I think.

There will be old threads on here somewhere so see if you can locate them, I've in a rush now

I hade the calibers refurbished because of the issues with sounds coming from the brakes as described in previous posts. I talked to the Porsche garage that took care of refurbishing the calibers for me after I had the car for a couple of days. He said that the pistons worked as they should in all the calibers. The brake new brake pads fit right in there. The issue should be somewhere else. I sure hope that he is right. I can´t really exclude anything right now. I am open to all suggestions. It probably is a minor issue once its source is found.

Is there anyone that is a regular user of the forum that know which threads this poster suggest I locate?

[Harmon Rabb]

Are these fitted to the rear on rs2,s
If so and corroded heavily or in pieces would make a rubbing sound off drive cv

How's your abs working also ?

Don´t know the part in the picture. Someone else has to answer that question.

ABS has been working fine when I have need to panic brake on slippery or wet surface on the road.

[Harmon Rabb]

In the end I turned to the local more expensive Audi dealer and asked them to do a wheel alignment and do a test drive and give me an opinion what they thought could be wrong regarding the sound i heard. At first they said it could be the hand break, but they needed to take a deeper look. I gave them a go ahead. They gave me a call a day later and said that there was nothing wrong with the hand break. Instead they thought it was the wheel bearing on the right hand side. I let them change it and the sound seems to be gone. Just had a short drive with the car so far.

The Audi dealer don't se many RS2 these days. When I was going to collect the car they had it parked a separate "show room" garage that can be seen from the big showroom. I think it´s used mostly when they deliver new cars to customers or to display new arrival models. Before I went of I offered them to borrow the RS2 if they wanted to use it in the future.

Anyway, thank you for all the suggestions in the thread. You have been most helpful.