01-20-2023, 02:54 PM | #1 |
Second Lieutenant
297
Rep 273
Posts
Drives: 23 M3Cx
Join Date: Aug 2022
Location: Cincinnati OH
|
G80/G82 Cold Start Squealing Pulley Noise in Cold Temps (30-40 deg F)
***RESOLVED as of 3/18/24: Here is a video of the noise at cold start. In my case, the culprit was the Deflection Pulley aka Idler Pulley: https://www.youtube.com/shorts/7L_otqh_Bxk
I have found little information regarding this sound with my G80 M3 on cold start in low temperatures. I noticed when in the low 30 degree F and below, the car squeals/whistles for a few moments, sometimes a few minutes if very cold. Initially thought its probably a belt or pulley, took my car to BMW and they said it was due to aftermarket intakes. I knew this wasnt the case, reverted back to stock: same sound persisted. Not related to intakes at all. Car is back at BMW a second time now since 01/10/2023. They have replicated and identified the sound, thinking it was a pulley or belt sound. They replaced the belt, retested, and today said the noise persists. I miss my car! They are opening a case with BMW NA and going to record audio clips to submit with the claim. I am frustrated I haven't had the car long and now this happens, but my dealership has been very determined and eager to sort this out. I will continue to post updates as I get them. I also posted some in the older thread about G82 M4 Cold Start Noises. I started a new thread in light of helping others that seem to have this mysterious noise that is not documented hardly anywhere.
__________________
2023 M3 Competition xDrive, Alpine White with Full Fjord Blue/Black interior
2022 Acura TLX Type S, Tiger Eye Pearl with Orchid White interior (traded in) 2019 Subaru WRX STi, Ice Silver (traded in) 2017 Ford Focus ST, Oxford White (traded in) Last edited by Krisp97; 03-18-2024 at 03:59 PM.. |
01-20-2023, 04:48 PM | #4 |
Second Lieutenant
297
Rep 273
Posts
Drives: 23 M3Cx
Join Date: Aug 2022
Location: Cincinnati OH
|
Yes, when the sound occurs for more than a couple seconds, it will do it relative with RPM up to about 1800 or so then stops until RPM's drop lower. I have said all along I believe it is a pulley or bearing of some nature based on this. Belt was replaced which I figured would not fix anything, but understand they have to go through the process. I work in the car business too so I get it! Will see next week if we get any updates.
__________________
2023 M3 Competition xDrive, Alpine White with Full Fjord Blue/Black interior
2022 Acura TLX Type S, Tiger Eye Pearl with Orchid White interior (traded in) 2019 Subaru WRX STi, Ice Silver (traded in) 2017 Ford Focus ST, Oxford White (traded in) Last edited by Krisp97; 01-20-2023 at 04:55 PM.. |
Appreciate
0
|
01-20-2023, 04:51 PM | #5 | |
Second Lieutenant
297
Rep 273
Posts
Drives: 23 M3Cx
Join Date: Aug 2022
Location: Cincinnati OH
|
Quote:
Could be something that results in a TSB if enough issues are reported
__________________
2023 M3 Competition xDrive, Alpine White with Full Fjord Blue/Black interior
2022 Acura TLX Type S, Tiger Eye Pearl with Orchid White interior (traded in) 2019 Subaru WRX STi, Ice Silver (traded in) 2017 Ford Focus ST, Oxford White (traded in) |
|
Appreciate
0
|
01-20-2023, 05:08 PM | #6 | |
BimmerPost Supporting Vendor
1922
Rep 4,923
Posts |
Quote:
Without a video or sound clip it's tough to guess where it's coming from. Valve covers make a whistle or high pitch hiss and a belt or bearing can be a grind to a constant chirp with time between.
__________________
|
|
Appreciate
1
Krisp97296.50 |
01-20-2023, 06:09 PM | #7 | |
Second Lieutenant
297
Rep 273
Posts
Drives: 23 M3Cx
Join Date: Aug 2022
Location: Cincinnati OH
|
Quote:
|
|
Appreciate
0
|
01-20-2023, 08:36 PM | #8 |
.
1919
Rep 1,889
Posts
Drives: E92 M3
Join Date: Oct 2016
Location: MN
|
My car is parked outside and on very cold days that are somewhat humid, I get a squeal on a cold start. I assumed it was somewhat normal and it's not easily reproducible for the rest of the day. Mine only lasts <15 seconds never in the summer. Do you have an example with sound?
Mine is -
__________________
|
Appreciate
2
Krisp97296.50 ObsessedM3C83.50 |
01-21-2023, 10:20 AM | #10 |
Second Lieutenant
297
Rep 273
Posts
Drives: 23 M3Cx
Join Date: Aug 2022
Location: Cincinnati OH
|
Exactly whats been going on for me. The sound would go away before they could pinpoint exactly what it is. When we had a really low cold snap few weeks ago, this noise lasted for a few minutes. Hasn't been lasting that long since, only really starts doing the noise in the mid-low thirties Farenheit and under.
__________________
2023 M3 Competition xDrive, Alpine White with Full Fjord Blue/Black interior
2022 Acura TLX Type S, Tiger Eye Pearl with Orchid White interior (traded in) 2019 Subaru WRX STi, Ice Silver (traded in) 2017 Ford Focus ST, Oxford White (traded in) |
Appreciate
0
|
01-21-2023, 10:22 AM | #11 | |
Second Lieutenant
297
Rep 273
Posts
Drives: 23 M3Cx
Join Date: Aug 2022
Location: Cincinnati OH
|
Quote:
__________________
2023 M3 Competition xDrive, Alpine White with Full Fjord Blue/Black interior
2022 Acura TLX Type S, Tiger Eye Pearl with Orchid White interior (traded in) 2019 Subaru WRX STi, Ice Silver (traded in) 2017 Ford Focus ST, Oxford White (traded in) |
|
Appreciate
0
|
01-21-2023, 10:56 AM | #12 | |
.
1919
Rep 1,889
Posts
Drives: E92 M3
Join Date: Oct 2016
Location: MN
|
Quote:
If it's happening for you more easily and frequently, then we're all relying on your dealer and car to figure out the cause.
__________________
|
|
Appreciate
1
Krisp97296.50 |
01-21-2023, 11:16 AM | #13 | |
Second Lieutenant
297
Rep 273
Posts
Drives: 23 M3Cx
Join Date: Aug 2022
Location: Cincinnati OH
|
Quote:
__________________
2023 M3 Competition xDrive, Alpine White with Full Fjord Blue/Black interior
2022 Acura TLX Type S, Tiger Eye Pearl with Orchid White interior (traded in) 2019 Subaru WRX STi, Ice Silver (traded in) 2017 Ford Focus ST, Oxford White (traded in) |
|
Appreciate
1
EatThatLunchBaby386.50 |
01-22-2023, 10:00 AM | #14 |
Enlisted Member
98
Rep 47
Posts |
Here is a video of mine from Jan 2022. I think it happens 5-10 times per year.
https://youtube.com/shorts/6F6X5FP10Y4?feature=share |
Appreciate
3
|
01-22-2023, 12:40 PM | #15 | |
Second Lieutenant
297
Rep 273
Posts
Drives: 23 M3Cx
Join Date: Aug 2022
Location: Cincinnati OH
|
Quote:
__________________
2023 M3 Competition xDrive, Alpine White with Full Fjord Blue/Black interior
2022 Acura TLX Type S, Tiger Eye Pearl with Orchid White interior (traded in) 2019 Subaru WRX STi, Ice Silver (traded in) 2017 Ford Focus ST, Oxford White (traded in) |
|
Appreciate
2
EatThatLunchBaby386.50 voodoo_m353.50 |
01-23-2023, 11:11 AM | #16 |
Second Lieutenant
297
Rep 273
Posts
Drives: 23 M3Cx
Join Date: Aug 2022
Location: Cincinnati OH
|
They have submitted over audio recording to engineering, hoping to get a bit longer of a recording in the next few days. My advisor said it will be a slow process and that he will keep me updated. Missing that car more than ever!
__________________
2023 M3 Competition xDrive, Alpine White with Full Fjord Blue/Black interior
2022 Acura TLX Type S, Tiger Eye Pearl with Orchid White interior (traded in) 2019 Subaru WRX STi, Ice Silver (traded in) 2017 Ford Focus ST, Oxford White (traded in) |
Appreciate
2
carsforlife1257.00 anakratis644.50 |
01-24-2023, 04:43 PM | #17 |
Second Lieutenant
297
Rep 273
Posts
Drives: 23 M3Cx
Join Date: Aug 2022
Location: Cincinnati OH
|
Update: BMW Engineering has asked them to remove the belt, identify the "index number" on the belt tensioner, and start the vehicle when cold to see if noise persists. I am guessing this is to verify if it is actually a pulley as opposed to something with the motor, which I am almost certain its the tensioner.
They said they are parking my car inside for the pending bad snowstorm coming tomorrow, I appreciate them looking out for me Hoping to hear something by the end of the week!
__________________
2023 M3 Competition xDrive, Alpine White with Full Fjord Blue/Black interior
2022 Acura TLX Type S, Tiger Eye Pearl with Orchid White interior (traded in) 2019 Subaru WRX STi, Ice Silver (traded in) 2017 Ford Focus ST, Oxford White (traded in) |
Appreciate
3
|
01-26-2023, 11:33 PM | #18 |
Second Lieutenant
297
Rep 273
Posts
Drives: 23 M3Cx
Join Date: Aug 2022
Location: Cincinnati OH
|
Car was started a few times in the cold without the belt on, no noise. This pretty much narrows it down to something within the pulley system. Waiting to hear back from the dealership at this time, they are awaiting further instruction from BMW Engineering on what to do next. We are getting closer!
I am hoping to have my car back within a week or so if that doesn't seem too unreasonable
__________________
2023 M3 Competition xDrive, Alpine White with Full Fjord Blue/Black interior
2022 Acura TLX Type S, Tiger Eye Pearl with Orchid White interior (traded in) 2019 Subaru WRX STi, Ice Silver (traded in) 2017 Ford Focus ST, Oxford White (traded in) |
Appreciate
7
anakratis644.50 chicagofan0019149.00 Ximian1919.00 vitipr171.00 EatThatLunchBaby386.50 carsforlife1257.00 voodoo_m353.50 |
02-02-2023, 05:20 PM | #19 |
Second Lieutenant
297
Rep 273
Posts
Drives: 23 M3Cx
Join Date: Aug 2022
Location: Cincinnati OH
|
***UPDATE: This did not fix it. I am in contact with my dealership again as of 3/2/24, I am thinking a different pulley is to blame. They ended up replacing the Idler/Deflection pulley which remedied the issue!***
Original post: I would like to excitedly report that I have just got the car back after 3 and a half weeks. After alot of "test-and-wait, then test again", it is now fixed. After first replacing the drive belt itself to no avail, BMW Engineering instructed them to remove and replace the belt tensioner and re-test. Luckily the weather has been cold enough for testing. They tested it over the span of three days and it no longer is making the sound. It was the belt tensioner all along like I had anticipated! Anyone with this sound, I encourage you to take it in -- its NOT normal like some have thought. They mentioned there is currently no service bulletin for this issue. Get your cars fixed up and this issue more known! Part number used was 11-28-8-580-360 for the Belt Tensioner. A $150 part.
__________________
2023 M3 Competition xDrive, Alpine White with Full Fjord Blue/Black interior
2022 Acura TLX Type S, Tiger Eye Pearl with Orchid White interior (traded in) 2019 Subaru WRX STi, Ice Silver (traded in) 2017 Ford Focus ST, Oxford White (traded in) Last edited by Krisp97; 03-26-2024 at 08:18 AM.. Reason: update |
Appreciate
12
evidence202.00 Sp2pilot168.50 J_Supplanter59.50 carsforlife1257.00 M4ord788.50 EatThatLunchBaby386.50 stalintc97.50 voodoo_m353.50 Dawgz1016.00 Soy Capitan10.00 ObsessedM3C83.50 M4Tejas788.00 |
02-08-2023, 01:59 PM | #21 |
Second Lieutenant
297
Rep 273
Posts
Drives: 23 M3Cx
Join Date: Aug 2022
Location: Cincinnati OH
|
Drove it today aaaand heard the sound when I went out to start it Not sure what to do at this point. I may reach out to the dealership again. Only issue currently is that it's currently a bit warmer out and harder to replicate.
I feel stuck and really thought they got it this time. I am sure they would love to hear from me again Anyone else taken theirs in yet?
__________________
2023 M3 Competition xDrive, Alpine White with Full Fjord Blue/Black interior
2022 Acura TLX Type S, Tiger Eye Pearl with Orchid White interior (traded in) 2019 Subaru WRX STi, Ice Silver (traded in) 2017 Ford Focus ST, Oxford White (traded in) |
Appreciate
0
|
02-08-2023, 03:07 PM | #22 |
You got my money?
3156
Rep 4,646
Posts
Drives: Ice Cream Truck
Join Date: Jul 2011
Location: ///OC
|
I dont hear that squeel sound. But I hear a distinct "ratchet" like sound when mine cold starts. Its like a gear sound for a split second. Closest sounding thing I can think of would be a ratchet cranking sound.
__________________
2022 G80 M3 Competition X / 2020 Range Rover Sport P525 / 2023 Ford Raptor
|
Appreciate
0
|
Post Reply |
Bookmarks |
|
|