Whistling at 30mph in cold weather (228i)

sandrik93 · 10-17-2017, 04:46 PM

Hi,
I have a whistling noise in the car every time its at 30mph. then till 33~34mph it pitches up and then disappears. Only happens in cold weather so below 18C. Dealership service has no clue what it is. I still can't figure out where it's coming from. Blowoff valve changed, still the same, so not that. Doesn't matter if on or off throttle as long as the speed is at 30. Fairly loud usually. Sound like the wind noise when something's not sealed properly but can't figure out what it might be. Windows up/down, AC on/off doesn't change anything. Any ideas?

Edit: Got to record sound as well. Seems like it's coming from the front but can't be sure:https://vocaroo.com/i/s0IQA5z9QT5y

Pat_335D · 10-26-2017, 09:39 PM

Windshield

gk09 · 10-27-2017, 03:06 AM

Quote:

Originally Posted by sandrik93

Hi,
I have a whistling noise in the car every time its at 30mph. then till 33~34mph it pitches up and then disappears. Only happens in cold weather so below 18C. Dealership service has no clue what it is. I still can't figure out where it's coming from. Blowoff valve changed, still the same, so not that. Doesn't matter if on or off throttle as long as the speed is at 30. Fairly loud usually. Sound like the wind noise when something's not sealed properly but can't figure out what it might be. Windows up/down, AC on/off doesn't change anything. Any ideas?

Edit: Got to record sound as well. Seems like it's coming from the front but can't be sure:https://vocaroo.com/i/s0IQA5z9QT5y

Do you have aftermarket mirror caps??? I hear these can produce a whistle

Paisano · 12-29-2017, 08:17 AM

Weather stripping on one of your doors. Your drivers or passengers side window might need adjustment, happened to me on my drivers side door.

SteveInfante · 01-08-2018, 11:17 AM

I just had a whistle sound this morning. It's was just as you described. It happened to be 22 degrees out as well. I popped the sunroof open and it stopped. I'm thinking that the seal gets deformed somehow when it gets that cold.

sandrik93 · 01-09-2018, 04:14 PM

Quote:

Originally Posted by SteveInfante

I just had a whistle sound this morning. It's was just as you described. It happened to be 22 degrees out as well. I popped the sunroof open and it stopped. I'm thinking that the seal gets deformed somehow when it gets that cold.

I thought mine was the sunroof at first but now sound comes with open, closed or vent positions. Since it's now cold every morning and I don't take highways to get to work, I have a pleasure of listening to that almost all the time.

sandrik93 · 01-09-2018, 04:16 PM

Quote:

Originally Posted by Paisano

Weather stripping on one of your doors. Your drivers or passengers side window might need adjustment, happened to me on my drivers side door.

Would you be able to check if it's the window if you open one at a time? Did it do only when windows are up?

Luv2 · 01-10-2018, 02:08 PM

Do you have a sunroof? I had that whistling sound over 80 km/hr. Turns out I had some pine needles in the seal for the sun roof. I vacuumed around the seal and took it to a touch less carwash. Haven't had the whistle again...knock on wood

Paisano · 01-15-2018, 08:28 PM

You could check the windows one at a time at high enough speed 100 km/h. Alternately shoot compressed air at the weather stripping and have someone sit inside to hear whistling.
I would measure the door window to B-Pillar gap. Since the car is a coupe and slamming the doors close over a longer period of time will shift the windows from their factory positions and might throw the window regulator off.

shil · 01-16-2018, 11:46 AM

When it's real cold out your window won't roll down the inch or so that it does when you open the door. When you close the door it doesn't seal properly and makes a racket.
Once the window thaws, roll it down an inch and up again.

sandrik93 · 03-14-2018, 12:26 PM

23 days at the dealership at they still couldn't do anything. DIY if you wanna do it well. @Luv2 I do have a sunroof. Cleaned it but nothing changed.
Windows are fine. I had windows open one at a time. Doors as well. As well as the sunroof. One of the rubber seals somewhere else must be messing up so I decided to put the masking tape all over and take it off one at a time to see which part does it. Hope it works. I'm out of other ideas..

3rdcoast228i · 03-24-2018, 03:42 PM

Make sure your car has this part on both sides. Probably not it but worth looking into.
http://www..2addicts.com/forums/showthread.php?t=1200964

10-17-2017, 04:46 PM	#1
sandrik93 Second Lieutenant 90 Rep 270 Posts Drives: '23 M240i RWD Join Date: Jan 2017 Location: San Antonio, TX iTrader: (1)	Whistling at 30mph in cold weather (228i) Hi, I have a whistling noise in the car every time its at 30mph. then till 33~34mph it pitches up and then disappears. Only happens in cold weather so below 18C. Dealership service has no clue what it is. I still can't figure out where it's coming from. Blowoff valve changed, still the same, so not that. Doesn't matter if on or off throttle as long as the speed is at 30. Fairly loud usually. Sound like the wind noise when something's not sealed properly but can't figure out what it might be. Windows up/down, AC on/off doesn't change anything. Any ideas? Edit: Got to record sound as well. Seems like it's coming from the front but can't be sure:https://vocaroo.com/i/s0IQA5z9QT5y Last edited by sandrik93; 10-18-2017 at 11:39 AM..
	Appreciate 0 Tweet Quote

10-26-2017, 09:39 PM	#2
Pat_335D Private 20 Rep 79 Posts Drives: 2010 335D Join Date: Jul 2016 Location: Baltimore, MD iTrader: (0)	Windshield
	Appreciate 0 Quote

12-29-2017, 08:17 AM	#4
Paisano Private 21 Rep 80 Posts Drives: M4 Comp Join Date: Feb 2017 Location: Canada iTrader: (0)	Weather stripping on one of your doors. Your drivers or passengers side window might need adjustment, happened to me on my drivers side door.
	Appreciate 0 Quote

01-08-2018, 11:17 AM	#5
SteveInfante NewFinishColumbia/detailer 609 Rep 2,096 Posts Drives: 2015 F31 xDrive Join Date: Sep 2010 Location: Columbia, SC iTrader: (0)	I just had a whistle sound this morning. It's was just as you described. It happened to be 22 degrees out as well. I popped the sunroof open and it stopped. I'm thinking that the seal gets deformed somehow when it gets that cold. __________________ 328 F31 xDrive/OSM/Venetian Luxury Line/Cold Weather/Premium/Driving Assist/Nav/Tech "Golden Goose" 78' Honda CB400A project http://www.instagram.com/steve_inf31
	Appreciate 0 Quote

01-10-2018, 02:08 PM	#8
Luv2 Private First Class 73 Rep 156 Posts Drives: 2022 m240i, 2023 G87 M2 Join Date: Jan 2016 Location: Toronto area iTrader: (0)	Do you have a sunroof? I had that whistling sound over 80 km/hr. Turns out I had some pine needles in the seal for the sun roof. I vacuumed around the seal and took it to a touch less carwash. Haven't had the whistle again...knock on wood __________________ Love 911's Previous cars: '99 GTi, '01 Subaru TS, '06 Subaru RS, '10 WRX, '11 WRX STi, 2016 m235i
	Appreciate 0 Quote

01-15-2018, 08:28 PM	#9
Paisano Private 21 Rep 80 Posts Drives: M4 Comp Join Date: Feb 2017 Location: Canada iTrader: (0)	You could check the windows one at a time at high enough speed 100 km/h. Alternately shoot compressed air at the weather stripping and have someone sit inside to hear whistling. I would measure the door window to B-Pillar gap. Since the car is a coupe and slamming the doors close over a longer period of time will shift the windows from their factory positions and might throw the window regulator off.
	Appreciate 0 Quote

01-16-2018, 11:46 AM	#10
shil Huh? Wazzat? 32 Rep 41 Posts Drives: 228i xDrive Join Date: Oct 2016 Location: Hamilton, ON iTrader: (0)	When it's real cold out your window won't roll down the inch or so that it does when you open the door. When you close the door it doesn't seal properly and makes a racket. Once the window thaws, roll it down an inch and up again.
	Appreciate 0 Quote

03-14-2018, 12:26 PM	#11
sandrik93 Second Lieutenant 90 Rep 270 Posts Drives: '23 M240i RWD Join Date: Jan 2017 Location: San Antonio, TX iTrader: (1)	23 days at the dealership at they still couldn't do anything. DIY if you wanna do it well. @Luv2 I do have a sunroof. Cleaned it but nothing changed. Windows are fine. I had windows open one at a time. Doors as well. As well as the sunroof. One of the rubber seals somewhere else must be messing up so I decided to put the masking tape all over and take it off one at a time to see which part does it. Hope it works. I'm out of other ideas..
	Appreciate 0 Quote

03-24-2018, 03:42 PM	#12
3rdcoast228i Captain 225 Rep 610 Posts Drives: 2016 228i Msport Join Date: Apr 2017 Location: Texas iTrader: (0)	Make sure your car has this part on both sides. Probably not it but worth looking into. http://www..2addicts.com/forums/showthread.php?t=1200964
	Appreciate 0 Quote

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search