Strange noise at 55mph after staggered wheels installed. Need your Help.

328xihalogen · 05-29-2011, 10:56 PM

So I took off my stock 16" RFT wheels and put on a set of 225/40/18front and 255/35/18rear. I went for a drive and it all seemed fine when I was driving 65mph on a toll road. then on the way back, I was doing slower speed, I notice a very obvious hummingg like noise when the car as doing 55mph. The noise is like all over in the car. I can't really locate it to the wheels but since this is the first time I heard such noise, my suspicion went to the wheels. But I can't think why staggered wheels would cause such noise. I thought maybe the wheels are not balanced as I got them second hand, but I did not feel any vibration at the 55mph speed. I understanding is if the wheels are not balanced then there should be some vibration at higher speed. Now the only other possibility left to me is the resonance; maybe this set of wheels cause resonance at that particular speed? But again, the wheels are on 162 rims which I think are quite common on Xis. So I just don't know what is the causing the noise and I don't know if I should keep driving it as maybe it caused further problems. Any suggestion/opinions would be greatly appreciated!

fdriller9 · 05-30-2011, 12:03 AM

What tires do you have? The tires on my 19s produce a lot of road noise/humming.

Im running bf goodrich tires...the model escapes me right now though.

328xihalogen · 05-30-2011, 05:46 AM

Quote:

Originally Posted by *********

What tires do you have? The tires on my 19s produce a lot of road noise/humming.

Im running bf goodrich tires...the model escapes me right now though.

Thanks for your reply. The tires are Michelin Pilot Sport A/S Plus. I did not choose these tires. They came with the rims I bought. The noise are not road noise. It starts from 50mph and most obvious at 55mph then goes away at 60mph. The noise was so loud than when i first noticed it, I had to pull over to make sure the wheels were not losen!

fdriller9 · 06-01-2011, 09:32 AM

Maybe they need to be rebalanced. Make sure there are no bends or anything like that.

C ///M · 06-01-2011, 05:37 PM

I'd contact whoever you bought the wheels/tires from...

kkrriiss · 06-09-2011, 10:43 AM

If the tires were used check to make sure that the tread wear hasn't worn down to the indicator in certain spots. that may cause it too.

05-29-2011, 10:56 PM	#1
328xihalogen New Member 0 Rep 12 Posts Drives: 328xi Join Date: Jul 2009 Location: va iTrader: (0)	Strange noise at 55mph after staggered wheels installed. Need your Help. So I took off my stock 16" RFT wheels and put on a set of 225/40/18front and 255/35/18rear. I went for a drive and it all seemed fine when I was driving 65mph on a toll road. then on the way back, I was doing slower speed, I notice a very obvious hummingg like noise when the car as doing 55mph. The noise is like all over in the car. I can't really locate it to the wheels but since this is the first time I heard such noise, my suspicion went to the wheels. But I can't think why staggered wheels would cause such noise. I thought maybe the wheels are not balanced as I got them second hand, but I did not feel any vibration at the 55mph speed. I understanding is if the wheels are not balanced then there should be some vibration at higher speed. Now the only other possibility left to me is the resonance; maybe this set of wheels cause resonance at that particular speed? But again, the wheels are on 162 rims which I think are quite common on Xis. So I just don't know what is the causing the noise and I don't know if I should keep driving it as maybe it caused further problems. Any suggestion/opinions would be greatly appreciated!
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05-30-2011, 12:03 AM	#2
fdriller9 Banned 263 Rep 7,089 Posts Drives: '06 AW 330xi Join Date: Mar 2009 Location: North Jersey/Philly/NYC iTrader: (4) Garage List 2006 330xi [6.44]	What tires do you have? The tires on my 19s produce a lot of road noise/humming. Im running bf goodrich tires...the model escapes me right now though.
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06-01-2011, 09:32 AM	#4
fdriller9 Banned 263 Rep 7,089 Posts Drives: '06 AW 330xi Join Date: Mar 2009 Location: North Jersey/Philly/NYC iTrader: (4) Garage List 2006 330xi [6.44]	Maybe they need to be rebalanced. Make sure there are no bends or anything like that.
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06-01-2011, 05:37 PM	#5
C ///M Lieutenant 56 Rep 495 Posts Drives: '04 M3 & '07 X3 M-Sport Join Date: May 2010 Location: Chicago iTrader: (2) Garage List 2007 BMW X3M Prototype [10.00]	I'd contact whoever you bought the wheels/tires from...
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06-09-2011, 10:43 AM	#6
kkrriiss Banned 2 Rep 72 Posts Drives: 2011 328xi sedan Join Date: Apr 2011 Location: Ontario iTrader: (0)	If the tires were used check to make sure that the tread wear hasn't worn down to the indicator in certain spots. that may cause it too.
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