Whoosh / Hissing sound

boc9012 · 09-27-2019, 05:49 PM

I've been noticing a faint whoosh sound when applying the throttle starting at very light throttle inputs, Its consistent in all 3 engine settings (comfort, sport, sport +). It almost sounds like I have aftermarket intakes but I'm only running a stock airbox. Ive already checked the charge pipes and ring clamps and don't see any obvious defects. I dont remember hearing this whoosh until recently, 1 day after flashing the bm3 stage 1 map, Ive since flashed back to stock and the sound remains. I dont think theres any noticeable power loss. I've had active sound off for a while btw. Does this sound like the normal intake/turbo noise I'm hearing?

YasF80_SLO · 09-27-2019, 07:14 PM

A video would help alot, BM3 will for sure raise boost(so intake noise as well) you may just be noticing it more now, especially if it holds boost with no issue WOT through the main powerband.

itsTwigs · 09-27-2019, 10:55 PM

If you're talking about the turbos I'm going to lose it

boc9012 · 09-28-2019, 07:21 AM

I've considered if what Im hearing is the turbos but the sound seems to start when there is only mild load on the throttle and RPMs < 2k. I'll try to post a video if I can capture the sound on my phone. I just don't remember hearing this sound for the first 24k miles that Ive put on the car.

Thamer · 09-28-2019, 11:27 AM

It's 99% the charge pipes, its either one of them has a crack in it or they are loose.. Check for cracks and check the clamps if they are tight or not. If you checked the charge pipes and they seem fine, then it's just leaking air from one of the clamps.

paliknight · 09-29-2019, 01:48 AM

Quote:

Originally Posted by Jimmyraww

If you're talking about the turbos I'm going to lose it

N1rve · 09-29-2019, 01:50 AM

I'm pretty sure it's the turbos....

Aaaaaaaaa · 09-29-2019, 07:33 PM

Gotta love the twin turbo inline V6

wangboy925 · 09-29-2019, 08:45 PM

Quote:

Originally Posted by NUTScapes

Gotta love the twin turbo inline V6

V6?

Jim B · 09-29-2019, 08:51 PM

Quote:

Originally Posted by wangboy925

V6?

It's a zero degree V.

boc9012 · 09-30-2019, 06:24 PM

Here is a video from inside the cabin. Im driving with very light throttle.

jpy1980 · 10-01-2019, 01:27 AM

There is a very light wooshing sound. Would that be a leaky charge pipe or boost leak? Check your charge pipes again by taking them off?

boc9012 · 10-02-2019, 12:08 PM

Turns out the sound was caused by a loose oil cap not sealing against valve cover, was replaced under warranty by dealership.

farg · 10-02-2019, 03:07 PM

Thanks for update. To be filed away in my diseased brain.

hellokitty · 10-03-2019, 12:07 AM

Quote:

Originally Posted by boc9012

Turns out the sound was caused by a loose oil cap not sealing against valve cover, was replaced under warranty by dealership.

Built in crank case breather ftw lol

Beemer125 · 02-21-2021, 02:55 PM

Quote:

Originally Posted by boc9012

Turns out the sound was caused by a loose oil cap not sealing against valve cover, was replaced under warranty by dealership.

Hi! I have exactly the same sound in my F83, Can you tell me where the oil cap is that you are referring to please?

CheekyfcukeR · 09-11-2021, 01:14 PM

Quote:

Originally Posted by Thamer

It's 99% the charge pipes, its either one of them has a crack in it or they are loose.. Check for cracks and check the clamps if they are tight or not. If you checked the charge pipes and they seem fine, then it's just leaking air from one of the clamps.

Thank you! When I drove off this morning I had a pretty loud wooshing noise coming from under the bonnet/car starting at around 2k revs - very noticable inside the cabin with windows open or closed.

I found this post and went off to check and the rubber hose had completely come away on the underside of the charge pipe (nearest the firewall) and where it meets the intercooler. I re-seated/re-clamped and everything seems fine now but have ordered another rubber hose anyway. Thanks again.

Before
https://ibb.co/Xymk7r6
https://ibb.co/CvBLJzg

After
https://ibb.co/sgqTRgX

gpennell0812 · 09-11-2021, 07:18 PM

My car recently did something similar making a sudden whooshing/spooling sound. I have BM3 Stage 1, drop in BMC filters, and VRSF charge pipes. I did not hear any change in sound after installing the drop in filters as others have reported on the forum. But a few months later the car spontaneously started making a whooshing sound even though I have changed nothing else. I did a diagnostic run and sent it to BM3 and they said everything looked fine. I have checked the attachments of the charge pipes and everything is attached tightly. The car still runs fine, but I'd love to know what changed for peace of mind.

09-27-2019, 05:49 PM	#1
boc9012 New Member 15 Rep 27 Posts Drives: f80 m3 Join Date: Mar 2017 Location: CA / NJ iTrader: (0)	Whoosh / Hissing sound I've been noticing a faint whoosh sound when applying the throttle starting at very light throttle inputs, Its consistent in all 3 engine settings (comfort, sport, sport +). It almost sounds like I have aftermarket intakes but I'm only running a stock airbox. Ive already checked the charge pipes and ring clamps and don't see any obvious defects. I dont remember hearing this whoosh until recently, 1 day after flashing the bm3 stage 1 map, Ive since flashed back to stock and the sound remains. I dont think theres any noticeable power loss. I've had active sound off for a while btw. Does this sound like the normal intake/turbo noise I'm hearing?
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09-27-2019, 07:14 PM	#2
YasF80_SLO Captain 233 Rep 649 Posts Drives: F80 Join Date: Oct 2016 Location: San Luis Obispo iTrader: (0) Garage List 2015 BMW M3 [0.00] 2018 Nissan Versa S [0.00]	A video would help alot, BM3 will for sure raise boost(so intake noise as well) you may just be noticing it more now, especially if it holds boost with no issue WOT through the main powerband.
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09-27-2019, 10:55 PM	#3
itsTwigs Vroomthusiast 282 Rep 207 Posts Drives: 08 E92 M3/21 Toyota Tacoma OR Join Date: Aug 2018 Location: Dallas, TX iTrader: (0) Garage List 2008 BMW M3 [9.00] 2021 Toyota Tacoma [0.00]	If you're talking about the turbos I'm going to lose it __________________ Do the right thing.
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09-28-2019, 07:21 AM	#4
boc9012 New Member 15 Rep 27 Posts Drives: f80 m3 Join Date: Mar 2017 Location: CA / NJ iTrader: (0)	I've considered if what Im hearing is the turbos but the sound seems to start when there is only mild load on the throttle and RPMs < 2k. I'll try to post a video if I can capture the sound on my phone. I just don't remember hearing this sound for the first 24k miles that Ive put on the car.
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09-28-2019, 11:27 AM	#5
Thamer Lieutenant 75 Rep 401 Posts Drives: F80 M3 & E60 M5 & F55 Mini Join Date: Jul 2010 Location: Dhahran iTrader: (0) Garage List 2007 BMW 328i [9.00]	It's 99% the charge pipes, its either one of them has a crack in it or they are loose.. Check for cracks and check the clamps if they are tight or not. If you checked the charge pipes and they seem fine, then it's just leaking air from one of the clamps. __________________ M Performance Exhaust & CF tips / Eisenmann DP / BM3 tune / Heat exchanger / Top mount intercooler / BMC filters / Oil cooler / DCT cooler / Methanol kit / BMS charge pipes Current: F80 M3, E60 M5, F55 Mini Cooper, VW Touareg. Previous: E92 328i, F30 328i, VW GTI, F36 428i, E85 Z4.
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09-29-2019, 01:50 AM	#7
N1rve Racecar Driver 1309 Rep 1,982 Posts Drives: BMW M4 Join Date: Mar 2019 Location: Beverly Hills, California iTrader: (2) Garage List 2019 BMW M4 [9.63]	I'm pretty sure it's the turbos.... __________________ N1rve 2019 BMW ///M4 - Alpine White \| Sakhir Orange/Black Leather \| M-DCT \| Executive Package \| 19" Black 437M Wheels \| Carbon Fiber Trim \| Sunroof \| Active Blind Spot \| Heated Steering Wheel \| Adaptive M Suspension
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09-29-2019, 07:33 PM	#8
Aaaaaaaaa Banned 7561 Rep 5,056 Posts Drives: The other M3 Join Date: Oct 2014 Location: So Cal iTrader: (0)	Gotta love the twin turbo inline V6
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09-30-2019, 06:24 PM	#11
boc9012 New Member 15 Rep 27 Posts Drives: f80 m3 Join Date: Mar 2017 Location: CA / NJ iTrader: (0)	Here is a video from inside the cabin. Im driving with very light throttle.
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10-01-2019, 01:27 AM	#12
jpy1980 Lieutenant Colonel 1583 Rep 1,977 Posts Drives: 2015 BMW M3 -Smurfy Blue Vinyl Join Date: Sep 2018 Location: Los Angeles iTrader: (3)	There is a very light wooshing sound. Would that be a leaky charge pipe or boost leak? Check your charge pipes again by taking them off?
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10-02-2019, 12:08 PM	#13
boc9012 New Member 15 Rep 27 Posts Drives: f80 m3 Join Date: Mar 2017 Location: CA / NJ iTrader: (0)	Turns out the sound was caused by a loose oil cap not sealing against valve cover, was replaced under warranty by dealership.
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10-02-2019, 03:07 PM	#14
farg Enlisted Member 60 Rep 46 Posts Drives: 2018 F80 M3 Join Date: Sep 2018 Location: Oregon iTrader: (0)	Thanks for update. To be filed away in my diseased brain.
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09-11-2021, 07:18 PM	#18
gpennell0812 Enlisted Member 9 Rep 44 Posts Drives: 2018 BMW M4 F83 Join Date: May 2021 Location: San Diego, CA iTrader: (0)	My car recently did something similar making a sudden whooshing/spooling sound. I have BM3 Stage 1, drop in BMC filters, and VRSF charge pipes. I did not hear any change in sound after installing the drop in filters as others have reported on the forum. But a few months later the car spontaneously started making a whooshing sound even though I have changed nothing else. I did a diagnostic run and sent it to BM3 and they said everything looked fine. I have checked the attachments of the charge pipes and everything is attached tightly. The car still runs fine, but I'd love to know what changed for peace of mind.
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