Runflats making loud noises

Gnip Gnop · 05-28-2012, 09:28 PM

I have the original runflats on my car, but on CCW's.
The wheels are only slightly wider than stock. 7.5 front 9 rear. There is not much stretch at all.

Here is my problem: I am getting a noise from my front driver side tire that sounds exactly like turning your tires on a tiled floor, or a garage floor with the floor paint on it. It happens only when a certain part of the tire is rotated so the weight of the car is on it.

I brought it into my dealer because I thought it was something other than the tire making the noise. They said it is because "I stretched my runflats, and the tire bead is moving around on the wheel, and that is just the way it is." That does not make any sense to me, given the fact that the other 3 tires are just as stretched.....Anyone have an idea of what could be causing this? It is driving me insane

Lester · 05-28-2012, 10:54 PM

Not too sure why, the stock 261's are 7.5 in wide on the front. I would have the front wheel alignment checked for starters.

Gnip Gnop · 05-29-2012, 07:18 PM

Quote:

Originally Posted by Lester

Not too sure why, the stock 261's are 7.5 in wide on the front. I would have the front wheel alignment checked for starters.

I have the style 264's, not the m sport wheels.

There is no uneven tread wear, and these tires have roughly 5xxx miles on them...

Dackelone · 05-30-2012, 03:46 AM

Both factory wheels are 7.5 & 8.5 wide. What size tries do you have? What is CCW's ?

You need to swap your wheels to another car to see IF it is really your wheels/tires.

Gnip Gnop · 05-30-2012, 07:55 AM

Quote:

Originally Posted by Dackelone

Both factory wheels are 7.5 & 8.5 wide. What size tries do you have? What is CCW's ?

You need to swap your wheels to another car to see IF it is really your wheels/tires.

Tires are the stock run flats. 215f 245r

Elsabor67 · 05-30-2012, 08:00 AM

Swap them around (L-R, R-L) to see if it will do the same on the passenger side.

Gnip Gnop · 05-30-2012, 08:05 AM

Quote:

Originally Posted by Elsabor67

Swap them around (L-R, R-L) to see if it will do the same on the passenger side.

This is my next step.

Crackerballer · 05-30-2012, 10:40 AM

My guess is they answered it for you at the dealer. From my experience, run flats are generally louder than normal tires (I believe most will agree) and then the fact that you stretched them onto the CCWs, you are probably going to experience more noise and more issues.

ptack · 05-30-2012, 02:53 PM

The car gods are punishing you for run craps. Repent! The end is near.

Gnip Gnop · 05-30-2012, 03:20 PM

Quote:

Originally Posted by Crackerballer

My guess is they answered it for you at the dealer. From my experience, run flats are generally louder than normal tires (I believe most will agree) and then the fact that you stretched them onto the CCWs, you are probably going to experience more noise and more issues.

The dealer was wrong, I did not stretch the fronts. The front wheel width is same as stock. The rears are stretched and do not make any noise. I'm not talking road noise either. Its a squeak noise

Gnip Gnop · 05-30-2012, 10:08 PM

well i swapped the fronts, still making the noise. i had a friend drive the car very slowly as i walked next to it, and all 4 tires are making the noise. I put my finger on the sidewall as the tire rotated and when the tire was on the ground, the squek happened and I could feel a vibration through the sidewall as the noise happened.

I put some more air in the tires to see if it will help at all, so I will see in the morning and report back.

Gnip Gnop · 05-31-2012, 10:56 PM

Increased tire pressure....sound is still there, just not as loud as before. I'm at 46psi

VMRWheels · 06-04-2012, 02:03 PM

Quote:

Originally Posted by Gnip Gnop

Increased tire pressure....sound is still there, just not as loud as before. I'm at 46psi

That's a pretty high psi. I wouldn't recommend running it that high. Make a quick video that shows off the squeaking. I'm really curious on what it sounds like.

Gnip Gnop · 06-04-2012, 04:42 PM

Quote:

Originally Posted by VMRWheels

That's a pretty high psi. I wouldn't recommend running it that high. Make a quick video that shows off the squeaking. I'm really curious on what it sounds like.

Why not run it that high? The max psi for the tires is 51. The noise is starting to go away but I will see if my camera can capture it.

135Pats · 06-04-2012, 10:31 PM

I can't wait to ditch my RFs, they are no good.....SO much road noise

Gnip Gnop · 06-04-2012, 10:41 PM

Quote:

Originally Posted by 135Pats

I can't wait to ditch my RFs, they are no good.....SO much road noise

Yeah I couldn't agree more

stevenc · 06-05-2012, 09:48 AM

Quote:

Originally Posted by Gnip Gnop

Why not run it that high? The max psi for the tires is 51. The noise is starting to go away but I will see if my camera can capture it.

If your cold tire pressure is 46 you could easily exceed 51 psi warm...

Your pressures are too high but i doubt that the problem. Are you sure you have no rubbing anywhere? Are you sure the tire isnt making contact with the shock on the back?

Gnip Gnop · 06-05-2012, 11:46 AM

Quote:

Originally Posted by stevenc

If your cold tire pressure is 46 you could easily exceed 51 psi warm...

Your pressures are too high but i doubt that the problem. Are you sure you have no rubbing anywhere? Are you sure the tire isnt making contact with the shock on the back?

The noise goes away with higher tire pressure. Absolutly not rubbing on anything. Plenty of room everywhere. Tires are filled with nitrogen, I thought temp didn't affect nitrogen?

stevenc · 06-05-2012, 01:11 PM

"Nitrogen is a gas and is still affected by changes in ambient temperature (about one psi for every 10° Fahrenheit). Nitrogen filled tires will require pressure be added during the fall/winter months as ambient temperatures and tire pressures drop. Nitrogen is good but can't change the laws of physics."

Gnip Gnop · 06-05-2012, 01:25 PM

Quote:

Originally Posted by stevenc

"Nitrogen is a gas and is still affected by changes in ambient temperature (about one psi for every 10° Fahrenheit). Nitrogen filled tires will require pressure be added during the fall/winter months as ambient temperatures and tire pressures drop. Nitrogen is good but can't change the laws of physics."

I stand corrected. That is what I heard. Maybe I will put it at 40-42psi.

I think part of the cause of the noise was the tire pressure. After I got it back from the dealership, I checked the psi. It was at 32. So maybe there wasn't enough pressure on the bead of the tire, causing it to move which is what caused the noise.

Dackelone · 06-05-2012, 01:33 PM

Tire pressure will not cause tire noise. What is causing the noise is your tired are worn. Cupped. My RFT tires did that while they still had some thread life left in them. Your best bet is to just buy four new tires. The sound that the tires make is the sound of a bad wheel bearing. RrrrRRRRRrrrrrRRRRRrrrrr type noise that increases with vehicle speed.

Gnip Gnop · 06-05-2012, 01:59 PM

Quote:

Originally Posted by Dackelone

Tire pressure will not cause tire noise. What is causing the noise is your tired are worn. Cupped. My RFT tires did that while they still had some thread life left in them. Your best bet is to just buy four new tires. The sound that the tires make is the sound of a bad wheel bearing. RrrrRRRRRrrrrrRRRRRrrrrr type noise that increases with vehicle speed.

It was a squeak not road noise from the tires. Tire pressure made the noise go away....how many miles can I expect out of the runflats

05-28-2012, 09:28 PM	#1
Gnip Gnop Lieutenant 43 Rep 440 Posts Drives: 2002 BMW Z3 Coupe Join Date: Dec 2011 Location: Woodbury, MN iTrader: (0)	Runflats making loud noises I have the original runflats on my car, but on CCW's. The wheels are only slightly wider than stock. 7.5 front 9 rear. There is not much stretch at all. Here is my problem: I am getting a noise from my front driver side tire that sounds exactly like turning your tires on a tiled floor, or a garage floor with the floor paint on it. It happens only when a certain part of the tire is rotated so the weight of the car is on it. I brought it into my dealer because I thought it was something other than the tire making the noise. They said it is because "I stretched my runflats, and the tire bead is moving around on the wheel, and that is just the way it is." That does not make any sense to me, given the fact that the other 3 tires are just as stretched.....Anyone have an idea of what could be causing this? It is driving me insane __________________
	Appreciate 0 Tweet Quote

05-28-2012, 10:54 PM	#2
Lester Brigadier General 295 Rep 3,350 Posts Drives: Join Date: Oct 2007 iTrader: (0)	Not too sure why, the stock 261's are 7.5 in wide on the front. I would have the front wheel alignment checked for starters.
	Appreciate 0 Quote

05-30-2012, 03:46 AM	#4
Dackelone European Editor 10532 Rep 22,992 Posts Drives: N54 e82 Join Date: Feb 2010 Location: Bayern, Germany iTrader: (1)	Both factory wheels are 7.5 & 8.5 wide. What size tries do you have? What is CCW's ? You need to swap your wheels to another car to see IF it is really your wheels/tires.
	Appreciate 0 Quote

05-30-2012, 08:00 AM	#6
Elsabor67 aiming for 450..... 303 Rep 2,910 Posts Drives: Totaled :-( Join Date: Feb 2009 Location: Louisiana iTrader: (28) Garage List 2009 135i [10.00]	Swap them around (L-R, R-L) to see if it will do the same on the passenger side. __________________ Quote from Ezeedee regarding car mods: "you're only done when you sell the car "
	Appreciate 0 Quote

05-30-2012, 10:40 AM	#8
Crackerballer Macaroni 4 Rep 111 Posts Drives: 2008 AW 135i Join Date: Feb 2012 Location: Durham, NC iTrader: (0)	My guess is they answered it for you at the dealer. From my experience, run flats are generally louder than normal tires (I believe most will agree) and then the fact that you stretched them onto the CCWs, you are probably going to experience more noise and more issues.
	Appreciate 0 Quote

05-30-2012, 02:53 PM	#9
ptack Brigadier General 269 Rep 4,470 Posts Drives: 135i Join Date: May 2008 Location: NJ iTrader: (0) Garage List 2008 135i [6.50]	The car gods are punishing you for run craps. Repent! The end is near. __________________ 135i, SGM, Coral, Sport Package, Auto, Premium Hifi, USB/ipod, Apex EC-7s, PPK Stage II
	Appreciate 0 Quote

05-30-2012, 10:08 PM	#11
Gnip Gnop Lieutenant 43 Rep 440 Posts Drives: 2002 BMW Z3 Coupe Join Date: Dec 2011 Location: Woodbury, MN iTrader: (0)	well i swapped the fronts, still making the noise. i had a friend drive the car very slowly as i walked next to it, and all 4 tires are making the noise. I put my finger on the sidewall as the tire rotated and when the tire was on the ground, the squek happened and I could feel a vibration through the sidewall as the noise happened. I put some more air in the tires to see if it will help at all, so I will see in the morning and report back. __________________
	Appreciate 0 Quote

05-31-2012, 10:56 PM	#12
Gnip Gnop Lieutenant 43 Rep 440 Posts Drives: 2002 BMW Z3 Coupe Join Date: Dec 2011 Location: Woodbury, MN iTrader: (0)	Increased tire pressure....sound is still there, just not as loud as before. I'm at 46psi __________________
	Appreciate 0 Quote

06-04-2012, 10:31 PM	#15
135Pats Major General 456 Rep 6,478 Posts Drives: A few BMWs Join Date: May 2012 Location: Maryland iTrader: (3)	I can't wait to ditch my RFs, they are no good.....SO much road noise __________________ E88 N54 Alpinweiss/Coral Red/Motiv HTA 3586r Tial .82AR/Other stuff...652WHP F30 N55 XDrive EBII
	Appreciate 0 Quote

06-05-2012, 01:11 PM	#19
stevenc Coming Soon 254 Rep 960 Posts Drives: 2015 BMW M4 Alphine White MT Join Date: Apr 2008 Location: Houston, TX iTrader: (0)	"Nitrogen is a gas and is still affected by changes in ambient temperature (about one psi for every 10° Fahrenheit). Nitrogen filled tires will require pressure be added during the fall/winter months as ambient temperatures and tire pressures drop. Nitrogen is good but can't change the laws of physics."
	Appreciate 0 Quote

06-05-2012, 01:33 PM	#21
Dackelone European Editor 10532 Rep 22,992 Posts Drives: N54 e82 Join Date: Feb 2010 Location: Bayern, Germany iTrader: (1)	Tire pressure will not cause tire noise. What is causing the noise is your tired are worn. Cupped. My RFT tires did that while they still had some thread life left in them. Your best bet is to just buy four new tires. The sound that the tires make is the sound of a bad wheel bearing. RrrrRRRRRrrrrrRRRRRrrrrr type noise that increases with vehicle speed.
	Appreciate 0 Quote