The M2 and the 'soda can crunch noise' issue: compilation of some experiences

subliminalaudio · 02-05-2018, 09:10 PM

Is this an M2 bulletin? Or m3 and m4
I'm having the same issues

akkando · 02-06-2018, 01:16 AM

Quote:

Originally Posted by subliminalaudio

Is this an M2 bulletin? Or m3 and m4
I'm having the same issues

I heard it was an issue on those as well. These seemed to have have affected 2016 and early 2017 M2s the most.

Gimmethecash · 02-06-2018, 09:38 AM

Mine sounded like I was dragging a thin piece of sheet metal backing down my driveway the other day, then kind of shrieked/squealed going forward. Definitely a pebble. I pushed on the brake shield on all four corners, drove a bit and it finally grabbed hard enough to break into small enough pieces to fall out.

Rupes · 03-25-2018, 03:18 PM

This has happened to me 3 or 4 times in the last couple days! Can anyone confirm if the puma number listed in the first post is accurate, and if their dealership agreed to repair? I'm concerned I'll be given a hard time since it's tough to duplicate.

PackPride85 · 03-26-2018, 09:48 AM

It was officially added to the same tsb as m3/m4 last August. Dealers should be doing now at request without issue. Not sure if it applies to 2018 models or not though (supposedly comes with the fix).

I will say since i had it done last year on my 2017 I have not heard it.

M2guru · 07-11-2018, 06:44 PM

I have 8,200 miles on my MT 2018 and today I heard the "soda can crunch noise" (and it was not the same as the pebble in the brake shield which I have had before). It was a pretty scary noise - almost pulled over to look under the car! I was going about 10-20 mph. Later that same trip (out to eat and back) it never did it again. Has anyone else had this issue on a 2018?

S2kM2dan · 07-14-2018, 12:44 PM

I have 2018 with 6000km. I just noticed when I was in an underground parking lot I heard a faint tick noise when turning. Anyone else experience this? Going to take it into the dealer to see if they find anything

pissclams · 07-14-2018, 01:28 PM

Is it your curb feelers?

Alby_416 · 07-14-2018, 05:03 PM

have you taken the wheels off your car recently?

a common issue causing this are the wheel bolts not torqued properly at 140NM. Many reported cases on the forum

Saberwalk · 07-15-2018, 04:03 AM

Good to know. Hearing this on mine as well. Interestingly, had the same issue with my M240 so wondering if this is a 2 series issue or possibly caused by potholes?

CantComplain · 07-15-2018, 11:44 PM

I know EXACTLY what this is. Pebbles in your rotor shields. Take it in and get them emptied out. There's a TSB for it as well, I think with a new shield.

I had it in for exactly that and first they blamed my aftermarket wheel centers. But the problem persisted after they removed them. Took them a while but they figured it out. They're back but still pretty quiet, and one day when I'm not so lazy I'll dig up the TSB and have them run it.

If you pay attention, you can probably hear it when you're close to a J-wall or something else that bounces the sound back at you.

AndrewC1989 · 07-16-2018, 09:17 PM

Quote:

Originally Posted by M2guru

I have 8,200 miles on my MT 2018 and today I heard the "soda can crunch noise" (and it was not the same as the pebble in the brake shield which I have had before). It was a pretty scary noise - almost pulled over to look under the car! I was going about 10-20 mph. Later that same trip (out to eat and back) it never did it again. Has anyone else had this issue on a 2018?

Yup, It happened in my friends 2018 the other day. He's got a DCT with ~4000 miles. Just driving along with the windows down while i'm in the passenger seat and it just happened out of nowhere. I thought we ran some road debris over, it was pretty scary and unexpected to hear out of the blue. I thought this issue was addressed long ago but apparently not

arquitecto · 07-17-2018, 08:49 AM

I hear the same thing when turning in my parking garage. It sounds exactly like the sound steel brake discs make when they start clicking when parked after a drive.

It is so similar in fact that I always thought it was due to the brakes being designed as “floating calipers” and being free to expand and contract but never checked in to it any further since I thought it was normal. There is an M4 in my garage with the same brakes and wheels and it also makes an identical sound.

Also, the LCI models already come from the factory with the updated brake shield so not sure if that would be the same fix as in Pre-LCI with the original shield design.

The only difference from the brake clicking noise from previous cars is that on the M2 it happens when turning and is a lot more repetitive in frequency. It seems directly proportional to the load going through the wheel and tire.

That is what lead me think of the brakes being the culprit but the wheels being loose theory would create a similar scenario. I will have to check my lugs to see if they are loose and see if that makes the sound go away.

Day Laborer · 07-17-2018, 10:22 AM

See the bottom repair order.

S2kM2dan · 07-17-2018, 01:42 PM

Thanks guys, will be taking it in this week. Hopefully no issues with the fix.

Though, the SA told me if they find no issues they will charge me a diagnostics fee.....

CantComplain · 08-06-2018, 07:39 PM

Quote:

Originally Posted by S2kM2dan

Thanks guys, will be taking it in this week. Hopefully no issues with the fix.

Though, the SA told me if they find no issues they will charge me a diagnostics fee.....

Charge YOU a diag fee for troubleshooting something? If they can reproduce the sound, you should change THEM a fee if they can't find any issues

Just curious, how did this turn out? based on the post 2 up, it seems to have been a different solution (and cause) that what I was told by my dealer. I'll try to find the invoice and post it here for future searches. But am very curious how yours turned out.

CantComplain · 08-16-2018, 04:38 PM

I think this thread has died out, but thought I'd add my invoice and the "fix" my dealer applied for what seems to be the same symptoms as OP.

Name: Fix.jpg
Views: 411
Size: 439.1 KB

It was an easy fix, but they didn't know that when we scheduled it. So they gave me a loaner 230i, which I thought was fun until I wanted to go somewhere. Anyway, I got hit while I was driving their car, bummer for them but I'm glad I was in a loaner!

Quote:

Originally Posted by CantComplain

Charge YOU a diag fee for troubleshooting something? If they can reproduce the sound, you should change THEM a fee if they can't find any issues

Just curious, how did this turn out? based on the post 2 up, it seems to have been a different solution (and cause) that what I was told by my dealer. I'll try to find the invoice and post it here for future searches. But am very curious how yours turned out.

DanG · 08-16-2018, 05:23 PM

Quote:

Originally Posted by CantComplain

I think this thread has died out, but thought I'd add my invoice and the "fix" my dealer applied for what seems to be the same symptoms as OP.
It was an easy fix, but they didn't know that when we scheduled it. So they gave me a loaner 230i, which I thought was fun until I wanted to go somewhere. Anyway, I got hit while I was driving their car, bummer for them but I'm glad I was in a loaner!

Glad you are all right and you M2 wasn't involved in the accident.

M2guru · 08-17-2018, 03:57 PM

Can someone tell me what is actually clicking? I notice this during track days when turning - and it's so consistent and regular that it's not junk hitting the shield. How does the "drive flange" contact the rotor and what is the "drive flange?"

bmxcamel · 08-17-2018, 10:43 PM

It's small pieces of road debris or rocks stuck in the brake shield. You can fix it by removing the wheels and pressing back the brake shields slightly.

However the noise will always return. It's a flawed design, and I had this same exact noise on my 135i, m235i, and F80 M3

M2guru · 08-18-2018, 08:17 AM

Quote:

Originally Posted by bmxcamel

It's small pieces of road debris or rocks stuck in the brake shield. You can fix it by removing the wheels and pressing back the brake shields slightly.

However the noise will always return. It's a flawed design, and I had this same exact noise on my 135i, m235i, and F80 M3

Not according to what I hear and what the dealer's information above states...

Saberwalk · 08-19-2018, 04:43 AM

Do not assume the clicking noise is minor. Took my M2 in for the same issue and it was a busted strut that needed to be replaced. I was afraid it might be as I hit a really bad pothole a couple of weeks earlier and the steering was feeling a tad loose though it was hard to tell. The invoice is in my glove box, but will update later with the actual diagnosis. I do remember the price though $1321 parts and labor. Ouch!

02-05-2018, 09:10 PM	#287
subliminalaudio Captain 314 Rep 719 Posts Drives: BMW M2 Join Date: Sep 2017 Location: ATLANTA/AUGUSTA iTrader: (0)	Is this an M2 bulletin? Or m3 and m4 I'm having the same issues
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02-06-2018, 09:38 AM	#289
Gimmethecash Lieutenant 150 Rep 485 Posts Drives: F90 M5 Comp Join Date: Mar 2011 Location: Pasadena iTrader: (1)	Mine sounded like I was dragging a thin piece of sheet metal backing down my driveway the other day, then kind of shrieked/squealed going forward. Definitely a pebble. I pushed on the brake shield on all four corners, drove a bit and it finally grabbed hard enough to break into small enough pieces to fall out.
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03-25-2018, 03:18 PM	#290
Rupes Major 1055 Rep 1,459 Posts Drives: F87 M2 (current), E90 330xi (w Join Date: Apr 2013 Location: Oregon iTrader: (0)	This has happened to me 3 or 4 times in the last couple days! Can anyone confirm if the puma number listed in the first post is accurate, and if their dealership agreed to repair? I'm concerned I'll be given a hard time since it's tough to duplicate.
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03-26-2018, 09:48 AM	#291
PackPride85 Lieutenant Colonel 1120 Rep 1,644 Posts Drives: M2 Join Date: Sep 2014 Location: NC iTrader: (0)	It was officially added to the same tsb as m3/m4 last August. Dealers should be doing now at request without issue. Not sure if it applies to 2018 models or not though (supposedly comes with the fix). I will say since i had it done last year on my 2017 I have not heard it.
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07-11-2018, 06:44 PM	#292
M2guru Lieutenant 384 Rep 572 Posts Drives: 2018 M2 Join Date: May 2017 Location: St. Paul MN iTrader: (2) Garage List 2018 BMW M2 [10.00]	I have 8,200 miles on my MT 2018 and today I heard the "soda can crunch noise" (and it was not the same as the pebble in the brake shield which I have had before). It was a pretty scary noise - almost pulled over to look under the car! I was going about 10-20 mph. Later that same trip (out to eat and back) it never did it again. Has anyone else had this issue on a 2018?
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07-14-2018, 12:44 PM	#293
S2kM2dan Second Lieutenant 102 Rep 211 Posts Drives: 2018 LBB M2 6MT Join Date: Oct 2012 Location: Toronto iTrader: (0)	Ticking noise when turning I have 2018 with 6000km. I just noticed when I was in an underground parking lot I heard a faint tick noise when turning. Anyone else experience this? Going to take it into the dealer to see if they find anything
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07-14-2018, 01:28 PM	#294
pissclams bad ***** poster _ 278 Rep 270 Posts Drives: 2011 E93 M3, 2018 F87 Join Date: Oct 2013 Location: Calabasas iTrader: (0)	Is it your curb feelers?
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07-14-2018, 05:03 PM	#295
Alby_416 Private First Class 115 Rep 134 Posts Drives: BMW M2 Coupé (BSM) Join Date: Aug 2014 Location: IT iTrader: (0) Garage List 2018 BMW M2 Coupé [0.00] 2011 BMW 1M\|SOLD [9.50] 2009 E82 123D\|SOLD [0.00]	have you taken the wheels off your car recently? a common issue causing this are the wheel bolts not torqued properly at 140NM. Many reported cases on the forum
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07-15-2018, 04:03 AM	#296
Saberwalk Private 27 Rep 88 Posts Drives: 2018 RWD DCT M2 Join Date: Jun 2006 Location: Rockville, MD iTrader: (0)	Good to know. Hearing this on mine as well. Interestingly, had the same issue with my M240 so wondering if this is a 2 series issue or possibly caused by potholes?
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07-15-2018, 11:44 PM	#297
CantComplain Second Lieutenant 117 Rep 220 Posts Drives: '17 6MT AW M2 Join Date: Aug 2016 Location: San Rafael, CA iTrader: (0)	I know EXACTLY what this is. Pebbles in your rotor shields. Take it in and get them emptied out. There's a TSB for it as well, I think with a new shield. I had it in for exactly that and first they blamed my aftermarket wheel centers. But the problem persisted after they removed them. Took them a while but they figured it out. They're back but still pretty quiet, and one day when I'm not so lazy I'll dig up the TSB and have them run it. If you pay attention, you can probably hear it when you're close to a J-wall or something else that bounces the sound back at you.
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07-17-2018, 08:49 AM	#299
arquitecto Second Lieutenant 536 Rep 289 Posts Drives: '18 M2 MG 6MT, '03 E39 Join Date: Nov 2016 Location: FL iTrader: (0) Garage List 2018 BMW M2 [0.00] 2003 BMW 530i [0.00]	I hear the same thing when turning in my parking garage. It sounds exactly like the sound steel brake discs make when they start clicking when parked after a drive. It is so similar in fact that I always thought it was due to the brakes being designed as “floating calipers” and being free to expand and contract but never checked in to it any further since I thought it was normal. There is an M4 in my garage with the same brakes and wheels and it also makes an identical sound. Also, the LCI models already come from the factory with the updated brake shield so not sure if that would be the same fix as in Pre-LCI with the original shield design. The only difference from the brake clicking noise from previous cars is that on the M2 it happens when turning and is a lot more repetitive in frequency. It seems directly proportional to the load going through the wheel and tire. That is what lead me think of the brakes being the culprit but the wheels being loose theory would create a similar scenario. I will have to check my lugs to see if they are loose and see if that makes the sound go away. __________________ Current Car \| 2018 ///M2 MG 6MT Previous Car \| 2003 E39 530i Sport Last edited by arquitecto; 07-17-2018 at 08:55 AM..
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07-17-2018, 10:22 AM	#300
Day Laborer Lieutenant Colonel 1747 Rep 1,886 Posts Drives: M5 CS / iX 50i Join Date: Dec 2009 Location: NY, NY, CT, PA, MD, VA, DE, FL iTrader: (11) Garage List [0.00]	See the bottom repair order. Attached Images __________________ https://www.instagram.com/day_laborer/ *(DM me from this account)* Email: nextlevelautobrokersdc@gmail.com Part-time with Next Level Auto Brokers, LLC https://www.instagram.com/nextlevelautobrokers/
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07-17-2018, 01:42 PM	#301
S2kM2dan Second Lieutenant 102 Rep 211 Posts Drives: 2018 LBB M2 6MT Join Date: Oct 2012 Location: Toronto iTrader: (0)	Thanks guys, will be taking it in this week. Hopefully no issues with the fix. Though, the SA told me if they find no issues they will charge me a diagnostics fee.....
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08-17-2018, 03:57 PM	#305
M2guru Lieutenant 384 Rep 572 Posts Drives: 2018 M2 Join Date: May 2017 Location: St. Paul MN iTrader: (2) Garage List 2018 BMW M2 [10.00]	Can someone tell me what is actually clicking? I notice this during track days when turning - and it's so consistent and regular that it's not junk hitting the shield. How does the "drive flange" contact the rotor and what is the "drive flange?"
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08-17-2018, 10:43 PM	#306
bmxcamel Captain 553 Rep 797 Posts Drives: F87 LCI, G01 m40i, E90 M3 Join Date: Nov 2010 Location: earth iTrader: (3)	It's small pieces of road debris or rocks stuck in the brake shield. You can fix it by removing the wheels and pressing back the brake shields slightly. However the noise will always return. It's a flawed design, and I had this same exact noise on my 135i, m235i, and F80 M3
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08-19-2018, 04:43 AM	#308
Saberwalk Private 27 Rep 88 Posts Drives: 2018 RWD DCT M2 Join Date: Jun 2006 Location: Rockville, MD iTrader: (0)	Do not assume the clicking noise is minor. Took my M2 in for the same issue and it was a busted strut that needed to be replaced. I was afraid it might be as I hit a really bad pothole a couple of weeks earlier and the steering was feeling a tad loose though it was hard to tell. The invoice is in my glove box, but will update later with the actual diagnosis. I do remember the price though $1321 parts and labor. Ouch!
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