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Discussion Starter #1 (Edited)
My 2004 Treg V8 has a noticeable, rythmic shoosh-shoosh-shoosh noise coming from somewhere I can not pinpoint. It is most audible when coasting along at around 25-35 mph.

My first thought was wheel bearings. I did raise the wheels but found no play when pulling on them. Likewise, turning left or right does not seem to change the noise.

Could it be the driveshaft bearing although I thought the symptom for that one is more of a hammering noise?

I do have new Nokian WR's on the vehicle. I have not ruled out tire noise, did rotate them but no difference.

Any thoughts or guidance on diagnosing appreciated.

Thanks.
 

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If it's a bearing or tire related noise, it should be speed dependent... does the frequency increase\decrease with changes in speed? Crawl under it and make sure you didn't drive over some garbage or something and it's now wrapped around your moving parts.... or that you don't have some broken plastic shields flapping in the wind, etc.
 

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Are you noticing any feathering on the tires. I recently had to change from Nokian WR G3's. I tried two sets and had wheel alignment plus Road Force balancing. Feathering started right away + tire noise. I was told that this was a problem with the G3's with that tread pattern. The G4's aren't available here yet in my tire size. I got BFG Advantage TA Sport LT. I've put 15000km on them with no problem. There things I like better about the Nokians and next time, if the G4's are available in my size, I will probably go back. In the meantime though, no more tire noise.
 

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There is fairly well known issue with even premium brand new tires having to do with how they get molded. I had brand new Contis and balancing didn't help. He switched the from 2 tires from side to side and that was it.
 

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Discussion Starter #5 (Edited)
I previously had the H3's (and H2's before that).

I did rotate front to back but will give the side to side a try as I do not think they are directional.

The rhythm of noise does change with speed, just not a huge diff but still there.

Thanks.
 

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Discussion Starter #6
I previously had the He's. I do rotate front to back but will give the side to side a try as I do not think they are directional.

The rythm of noise does change with speed, just not a huge diff but still there.
I previously had the He's. I do rotate front to back but will give the side to side a try as I do not think they are directional.

The rythm of noise does change with speed, just not a huge diff but still there.
I previously had the H3's (and H2's before that).

I did rotate front to back but will give the side to side a try as I do not think they are directional.

The rhythm of noise does change with speed, just not a huge diff but still there.

Thanks.
Well, I rotated side to side, no change. Spun the wheels while in the air. They all seem about the same, no play.

Even changed oil in rear diff and xfer case (did not feel like pulling pans fir front diff). No luck.

I still have not ruled out tires. I suppose I could swap a wheel at a time for the spare although that is time consuming. Anyone in Phila suburbs have an extra set of wheels I could try. I would know within 1/4 mile if it is the tires.

May be time to let the dealer figure it out.
 

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A wheel bearing will be louder on the outside of a turn and not so much when turning the other way. If it started with the new tires that would surely be where I'd focus. I've also read that tregs are very sensitive to variations in tire diameter..new or not
 

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Discussion Starter #8
Not really noticing much difference when turning. I too suspect tires. Challenge is that the only 5th tire I have is the stupid mini-spare so it is hard to know test out the hypothesis.
 

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If you don't have a fellow T owner you can swap wheels with I'd surely go to the shop that sold you the tires and assuming thy are recently bought I'd push for results.
 

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Are you noticing any feathering on the tires. I recently had to change from Nokian WR G3's. I tried two sets and had wheel alignment plus Road Force balancing. Feathering started right away + tire noise. I was told that this was a problem with the G3's with that tread pattern. The G4's aren't available here yet in my tire size. I got BFG Advantage TA Sport LT. I've put 15000km on them with no problem. There things I like better about the Nokians and next time, if the G4's are available in my size, I will probably go back. In the meantime though, no more tire noise.
This is VERY interesting as I put a set of Nokia’s WRG3 on my 04 V6 (17” wheel) about 20 months ago and the feathering at the edges has been a cause of concern.. my mechanic says alignment is an issue, but this portrays a tire design issue as at fault. My alignment wasn’t perfect but wasn’t that far off. Oddly, I just changed to a set of Pirelli Scorpion Verde Plus on my X5 after bad toe ruined my RSC Bridgestones (I hated), the difference in noise of those tires on the road is the third interesting item from this post! The Nokians are noisy and still great tread depth. The Pirellis are really like new sneakers... quiet. I like the Nokians on the Touareg, but don’t want these negative affects. As I’m in MA, snowflake ratings are appreciated.
 

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Swap the tires from one side to the other... even if they are directional.... this will quickly give you an indication of the noise changing as a result and help you focus on the tires or some other component.
 

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Discussion Starter #13
Swap the tires from one side to the other... even if they are directional.... this will quickly give you an indication of the noise changing as a result and help you focus on the tires or some other component.
Already tried that. No change. Thx.
 

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This is VERY interesting as I put a set of Nokia’s WRG3 on my 04 V6 (17” wheel) about 20 months ago and the feathering at the edges has been a cause of concern.. my mechanic says alignment is an issue, but this portrays a tire design issue as at fault. My alignment wasn’t perfect but wasn’t that far off. Oddly, I just changed to a set of Pirelli Scorpion Verde Plus on my X5 after bad toe ruined my RSC Bridgestones (I hated), the difference in noise of those tires on the road is the third interesting item from this post! The Nokians are noisy and still great tread depth. The Pirellis are really like new sneakers... quiet. I like the Nokians on the Touareg, but don’t want these negative affects. As I’m in MA, snowflake ratings are appreciated.
FWIW The BFG's have the snowflake. I haven't had them in snow yet, but I'm sure it won't be long!
 

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My 2004 Treg V8 has a noticeable, rythmic shoosh-shoosh-shoosh noise coming from somewhere I can not pinpoint. It is most audible when coasting along at around 25-35 mph.

My first thought was wheel bearings. I did raise the wheels but found no play when pulling on them. Likewise, turning left or right does not seem to change the noise.

Could it be the driveshaft bearing although I thought the symptom for that one is more of a hammering noise?

I do have new Nokian WR's on the vehicle. I have not ruled out tire noise, did rotate them but no difference.

Any thoughts or guidance on diagnosing appreciated.

Thanks.
I replaced both front wheel bearing because of a slight sound which sounded like offload tires. It was not the wheels and tires. Only when I removed the bearing I could see slight wear marks on the inner races. There was no play in the bearings, it would not get louder when going round a corner, which made me think at first it was tires, but when changed to summer tires, the noise was still there.
 

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Discussion Starter #16
I replaced both front wheel bearing because of a slight sound which sounded like offload tires. It was not the wheels and tires. Only when I removed the bearing I could see slight wear marks on the inner races. There was no play in the bearings, it would not get louder when going round a corner, which made me think at first it was tires, but when changed to summer tires, the noise was still there.
Thanks. At this point, I suspect I will let the dealer do initial diagnosis. If it is the bearings, I may wind up doing the job myself. If depends on how far they want to bend me over in terms of $$$.

I have an old beater Chevy Malibu (I have to say it is super easy to work on and parts are dirt cheap). While there was no play in bearings on that car they always seemed loud to me. Since they were cheap and easy to replace the hub assembly I did so and the difference was amazing.
 

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Dry bearings can cause this symptom. Wheels are tight, but the noise you described is there. Temporarily you may be able to get away with just greasing them.

Unfortunately they are press bearings instead of bolt on bearings so it's a more difficult and expensive job.
 

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The first video sounds like your brake pads normally rubbing on the disks. The second one sounds more suspicious...bearingish. Still could be brake pad rubbing. I have been successful identifying bearing issues by using a long screwdriver as a stethoscope. Touch the tip to the steering knuckle and hold the handle to bone in front of your ear, while a helper turns the wheel. Last time I did the screwdriver trick, the bad bearing growling noise overcame the brake friction. If not, I guess you could pull the pads to eliminate their noise.
 
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