[Curry33343]

Hey everyone and happy new year. My dilemma is I’ve had the M2 for a little while now and while driving the tires seem to be so damn loud. Like a loud humming and it only gets louder the faster you go. The tires are new , currently on Pirelli Pzeros. Is it the pirellis or something serious? Car has 30k and thank you in advance any help is greatly appreciated 🙌🙌🙌

[RenatoNYC]

If they’re run-flat tires, that’s unfortunately normal – they have really stiff sidewalls.

If they’re not run-flats, than it may just be the lack of sound dampening on the M2… I find it pretty loud in general, and gets tiring after a while on the highway, but I enjoy it.

[Zeese]

Originally Posted by RenatoNYC

If they’re run-flat tires, that’s unfortunately normal – they have really stiff sidewalls.

If they’re not run-flats, than it may just be the lack of sound dampening on the M2… I find it pretty loud in general, and gets tiring after a while on the highway, but I enjoy it.

Quite right on the lack of sound dampening. Some of the bits can be added on w/o any fuss. A number of threads have details. A little insulation seemed to do more than my move to PS4S tires from the Conti run-flats.

Off-Topic...
EnzoTuned 335d? More reading for me! The 335d is a great car :-) Piggy-back tune working great! Knock on wood, the car has been nothing short of amazing.

[Gizmo 335i]

The tire roar is fatiguing no doubt. Even with the sound deadening added back in its bad.

[DanG]

Originally Posted by Curry33343

Hey everyone and happy new year. My dilemma is I’ve had the M2 for a little while now and while driving the tires seem to be so damn loud. Like a loud humming and it only gets louder the faster you go. The tires are new , currently on Pirelli Pzeros. Is it the pirellis or something serious? Car has 30k and thank you in advance any help is greatly appreciated 🙌🙌🙌

My Michelin PS4Ss are pretty quite. If you are getting near the end of the tread life the noise increases considerably.

[RenatoNYC]

Zeese

I sold the 335d after getting the M2. It was tuned by Enzo (great guy and tuner). Car ran reliably for 60k miles after the tune (also had a JBD). Loved that car!

[RenatoNYC]

Curry33343

If the tires are in good shape, you may want to have a tech check the bearings.

[Curry33343]

Originally Posted by RenatoNYC

Curry33343

If the tires are in good shape, you may want to have a tech check the bearings.

Thank you , I was thinking that as well but at 30k miles I keep telling myself no way. Better safe than sorry 🙌 thanks again

[Curry33343]

Originally Posted by Gizmo 335i

The tire roar is fatiguing no doubt. Even with the sound deadening added back in its bad.

I know , I’m hoping it’s just the pirellis and not the bearings or anything major. Solve it with a tire swap 🤷‍♂️

[Curry33343]

Originally Posted by RenatoNYC

If they’re run-flat tires, that’s unfortunately normal – they have really stiff sidewalls.

If they’re not run-flats, than it may just be the lack of sound dampening on the M2… I find it pretty loud in general, and gets tiring after a while on the highway, but I enjoy it.

That’s what I’m hoping the lack of dampening. We all want to hear the exhaust while driving so that probably warranted that. Ty for the response

[///MPhatic]

Originally Posted by Zeese

Quite right on the lack of sound dampening. Some of the bits can be added on w/o any fuss. A number of threads have details. A little insulation seemed to do more than my move to PS4S tires from the Conti run-flats.

I mean, if you're adding sound deadening to the M2 you bought the wrong car. Most guys are leaving the back seats down and doing exhaust modifications to make it louder.

[Al Bundy's Dodge]

The whirring noise made by my blizzaks on dry pavement is really something to behold

[Curry33343]

Originally Posted by ///MPhatic

I mean, if you're adding sound deadening to the M2 you bought the wrong car. Most guys are leaving the back seats down and doing exhaust modifications to make it louder.

I understand the exhaust, I mean thats one of many reasons we love these cars . This is my third M car and I’ve never heard tires so loud. Just seeing if anyone agrees or had experience with the pirellis or maybe it’s just me idk 🤷‍♂️😂

[Zeese]

Originally Posted by Curry33343

I understand the exhaust, I mean thats one of many reasons we love these cars . This is my third M car and I’ve never heard tires so loud. Just seeing if anyone agrees or had experience with the pirellis or maybe it’s just me idk 🤷‍♂️😂

Right, loud does not always mean good.

For a modest investment, you might try adding these two sets of dampening:
1. Cover for side section (#6 below) - quiets tire noise from the rear
https://www.realoem.com/bmw/enUS/sho...02#41007294289

2. Sound insulation, door (#14 below) - quiets tire noise from the front
https://www.realoem.com/bmw/enUS/sho...08#51487319479

A long thread discusses sound deadening, and tire noise is mentioned.
https://f87.bimmerpost.com/forums/sh...ighlight=tires

Recommended.

[Zeese]

Originally Posted by ///MPhatic

I mean, if you're adding sound deadening to the M2 you bought the wrong car. Most guys are leaving the back seats down and doing exhaust modifications to make it louder.

[jefe2000]

Originally Posted by Zeese

A long thread discusses sound deadening, and tire noise is mentioned.
https://f87.bimmerpost.com/forums/showthread.php?t=1228618&highlight=tires

I’ve read thru that long thread a number of times. Each time, I come away a little dissatisfied. Unless I’m missing something, the thread boils down to:

• a large list of parts
• some posts that say “OK, I installed a bunch of the parts and it seems/measures quieter now!”

However, there’s no apparent method to the parts installs. So there’s no way — at least for me so far — to tell which of the parts actually lead to an in-cabin sound level reduction and which are just placebos.

In the end, at least with the tires on my M2, tire roar is pretty bad on rough surfaces at freeway speeds and otherwise acceptable. Fortunately, most of the freeway surfaces around me are fairly smooth (with the occasional rough section here and there that I just endure).

[Gizmo 335i]

Originally Posted by jefe2000

I’ve read thru that long thread a number of times. Each time, I come away a little dissatisfied. Unless I’m missing something, the thread boils down to:

• a large list of parts
• some posts that say “OK, I installed a bunch of the parts and it seems/measures quieter now!”

However, there’s no apparent method to the parts installs. So there’s no way — at least for me so far — to tell which of the parts actually lead to an in-cabin sound level reduction and which are just placebos.

In the end, at least with the tires on my M2, tire roar is pretty bad on rough surfaces at freeway speeds and otherwise acceptable. Fortunately, most of the freeway surfaces around me are fairly smooth (with the occasional rough section here and there that I just endure).

The parts were easy to come by and not terribly expensive. However, I didn’t notice mine being one bit quieter. While it might measure quieter my ears don’t perceive it.

[jefe2000]

Originally Posted by Gizmo 335i

The parts were easy to come by and not terribly expensive. However, I didn’t notice mine being one bit quieter. While it might measure quieter my ears don’t perceive it.

That’s helpful feedback!

This topic also makes me think of a couple of videos from BMW DIY Guy about adding sound deadening. These steps, while possibly more in depth than many of the steps recommended in the thread referenced above, likely bring about more reliable and repeatable sound level reduction:
https://youtu.be/c5lvkU0Lf_U
https://youtu.be/Uu8cFGtcZjw

[BMW DIY Guy]

Originally Posted by jefe2000

That’s helpful feedback!

This topic also makes me think of a couple of videos from BMW DIY Guy about adding sound deadening. These steps, while possibly more in depth than many of the steps recommended in the thread referenced above, likely bring about more reliable and repeatable sound level reduction:
https://youtu.be/c5lvkU0Lf_U
https://youtu.be/Uu8cFGtcZjw

Makes a huge difference, and improves audio dramatically as well. I finally did my trunk too, to complete the car out.

I went even one stage further with my X5 and did soundskins classic (metal backed weather resistant) on the inner door skins, then vapor barrier replacement and complete cabin bowl.

[///MPhatic]

Originally Posted by Curry33343

I understand the exhaust, I mean thats one of many reasons we love these cars . This is my third M car and I’ve never heard tires so loud. Just seeing if anyone agrees or had experience with the pirellis or maybe it’s just me idk 🤷‍♂️😂

Pirelli tires aren't known to be quiet, but then again, no Summer tire really is. If you're not hard on your car you might be able to fit it with all season tires, which will cut a lot of the performance but be vastly quieter. Conti makes great A/S tires, I actually prefer them to the Michelins.

[Zeese]

Originally Posted by Gizmo 335i

The parts were easy to come by and not terribly expensive. However, I didn’t notice mine being one bit quieter. While it might measure quieter my ears don’t perceive it.

It is problematic, after the fact, to demonstrate the changes are real. I intended to measure deltas and did not do this before and after installing all the bits and pieces. The two suggestions that I made were impactful though. The starting point for me was a car with a Stage 2 tune (and supporting mods), the Eventuri CAI and the MPE. The reduction in noise was real to my ear, but as noted, I did not measure the dBs before and after.

If I were to measure the dB today, comparisons to others' cars would still be a bit uneven. Tires, road surfaces (rubberized asphalt!), mods, MT or DCT (gearing, trans.) ... After doing the sound-proofing work, I added the stock resonator to the MPE to cut down the awful drone. All this being said, tire noise is not an issue for me. Tire wear? Oh yes. Oh well. Drive it like you stole it!

Everyone has the option to share measurements.

Good to know:
https://www.auto-decibel-db.com/BMW_2_2018%20M2.html

How to measure:
https://www.cdc.gov/niosh/topics/noise/app.html

Discussions on sound deadening in this forum remind us that, "Haters gonna hate." $30 + tax + shipping to try the front fender to body seals. 30 minutes of messing around.

[RenatoNYC]

Originally Posted by Curry33343

My dilemma is I’ve had the M2 for a little while now and while driving the tires seem to be so damn loud.

Getting my car from my local dealer tomorrow. I took it in specifically to get the bearings checked out, after having the same impression when driving on the highway, it’s loud.

Good news, bearings are fine.

Not so good news, the tires are just loud and the lack of sound dampening only exacerbates that.

I’m running the original Pilot Sport 4S ‘summer tires’ and while they’ve only driven 17k miles they are almost 5-years old.

I’m considering trying a set of Pilot Sport All Season 4 next. Had them on my last car and loved them.