Rattle/loose/fart noise on acceleration F30

Nyc212 · 09-03-2019, 12:39 PM

Hi, I've been struggling with a weird noise when I press the acceleration the best I can describe it as a light tin pit is light being banged when I'm pressing the acceleration or cards and being skipped like kids do on a bicycle.

Anyone had this or have it or know what it might be?

It's a 328i 2012

330istocknot · 09-03-2019, 01:11 PM

turbos?

Nyc212 · 09-03-2019, 01:35 PM

Quote:

Originally Posted by 330istocknot

turbos?

Well it doesn't really sound like a turbo from what I think and it's also there on any speed

D Griff · 09-03-2019, 01:50 PM

I am thinking you likely are hearing what I've hear recently (here's my thread) : https://f30.bimmerpost.com/forums/sh....php?t=1647106

Does it sound like this?

I found that in this thread - https://f30.bimmerpost.com/forums/sh....php?t=1646586

I ordered the parking brake cable retainer clip from ECS as it seems like that may be the cause. I'll replace it this weekend and report back.

Nyc212 · 09-03-2019, 02:52 PM

Quote:

Originally Posted by D Griff

I am thinking you likely are hearing what I've hear recently (here's my thread) : https://f30.bimmerpost.com/forums/sh....php?t=1647106

Does it sound like this?

I found that in this thread - https://f30.bimmerpost.com/forums/sh....php?t=1646586

I ordered the parking brake cable retainer clip from ECS as it seems like that may be the cause. I'll replace it this weekend and report back.

No thankfully nothing this bad, it sounds like an older car when pressing acceleration and I'm only at 70k

Solidjake · 09-03-2019, 03:19 PM

Quote:

Originally Posted by Nyc212

No thankfully nothing this bad, it sounds like an older car when pressing acceleration and I'm only at 70k

Look up wastegate rattle and also the exhaust flap rattle. I'm sure it's one of those two

canman111 · 09-03-2019, 08:05 PM

I'm in a similar situation to you too Nyc212

I only get it during light acceleration from a standstill and not while the car is already in motion.
It's worse when I'm in moving from standstill on an upward incline.
The sound seems to be coming from the rear side.
I've looked under the car but nothing seems loose and doesnt seem to be exhaust flap rattle.

Keep us posted if you find a solution.

Jakejacobsonn · 09-03-2019, 08:06 PM

Does it change sounds once car heats up mine has a similar sound if I picture what yours sounds like? Mine sounds completely different depending on map temp ewg open or closed also I got a muffler res delete

Nyc212 · 09-07-2019, 09:36 AM

Quote:

Originally Posted by canman111

I'm in a similar situation to you too Nyc212

I only get it during light acceleration from a standstill and not while the car is already in motion.
It's worse when I'm in moving from standstill on an upward incline.
The sound seems to be coming from the rear side.
I've looked under the car but nothing seems loose and doesnt seem to be exhaust flap rattle.

Keep us posted if you find a solution.

Yea sounds about right, I also noticed it on moderate speeds of 30-50mph when going through a tunnel it can be heard due to the echo.

I had the car lifted twice and the mechanics can't find anything. Had a mechanic ride with me as well and also says he doesn't know.

Nyc212 · 09-07-2019, 09:39 AM

Quote:

Originally Posted by Jakejacobsonn

Does it change sounds once car heats up mine has a similar sound if I picture what yours sounds like? Mine sounds completely different depending on map temp ewg open or closed also I got a muffler res delete

I'm just hoping it's not an engine issue, the timing chain on these gets me very afraid.

canman111 · 09-09-2019, 05:32 AM

I dont think it's an engine issue (I hope too).
I'm thinking and hoping that a body trim under the car somewhere is loose and just needs to be tightened.

saltql · 09-09-2019, 06:36 AM

Quote:

Originally Posted by Solidjake

Look up wastegate rattle and also the exhaust flap rattle. I'm sure it's one of those two

+1

adhrp · 08-20-2020, 09:28 AM

I have had two similar rattles - one was the exhaust flap because the pin had fallen off. Quick replacement. The second (and ongoing) one is a slight play in the wastegate probably causing a wastegate rattle as Solidjake said. The exhaust rattle is very obvious once the pin's fallen off so I suspect yours being more subtle might be the wastegate rattle.

radarlarry · 08-21-2020, 12:51 PM

Quote:

Originally Posted by D Griff

I am thinking you likely are hearing what I've hear recently (here's my thread) : https://f30.bimmerpost.com/forums/sh....php?t=1647106

Does it sound like this?

I found that in this thread - https://f30.bimmerpost.com/forums/sh....php?t=1646586

I ordered the parking brake cable retainer clip from ECS as it seems like that may be the cause. I'll replace it this weekend and report back.

Mine sounds exactly like this. Did the clip fix the noise? Can you guide me to the correct clip on ECS or elsewhere? Thanks!

DASH4237 · 08-28-2020, 09:05 PM

I have the same noise on my 2015 bmw 328i did the retaining clip fix the issue??

AJRufhaus · 10-07-2020, 09:13 PM

Put the car in the air. Was able to relieve the sound with the help of 5 zip ties! Took all of 5 minutes, no tools needed or anything adjusted.

juliomadara7 · 10-12-2020, 03:35 PM

Quote:

Originally Posted by Nyc212

Hi, I've been struggling with a weird noise when I press the acceleration the best I can describe it as a light tin pit is light being banged when I'm pressing the acceleration or cards and being skipped like kids do on a bicycle.

Anyone had this or have it or know what it might be?

It's a 328i 2012

It's the actuator pin in your exhaust. It gives off a bit of a rattle at cold start or if you're in sport and the car shifts ya?

MikeyMrtnz · 01-19-2021, 05:19 PM

Bumping this thread as I have the same exact noise in that video posted above. Did the clips resolve the issue?

RobF30 · 03-04-2021, 07:30 PM

This helped me out. I had the same problem with the cables, now the issue is fixed thanks to your pictures!

Quote:

Originally Posted by AJRufhaus

Put the car in the air. Was able to relieve the sound with the help of 5 zip ties! Took all of 5 minutes, no tools needed or anything adjusted.

mbfanatic1979 · 04-05-2021, 10:34 PM

Finally, found the cure for the issue which I also recently started to experience.

Many thanks!!

mbonus · 08-23-2021, 12:31 PM

Quote:

Originally Posted by RobF30

This helped me out. I had the same problem with the cables, now the issue is fixed thanks to your pictures!

Sorry to bump an old tread, but this is why I love this forum; Thanks for the pics which gave me the confidence to just zip tie them up

Once the car was on jack stands I could easily see the broken clip. That is a lot of work to replace something that is bound to fail again. Rather have the zip ties fail and then easily replace them.

AJRufhaus · 02-22-2022, 11:49 AM

Quote:

Originally Posted by RobF30

This helped me out. I had the same problem with the cables, now the issue is fixed thanks to your pictures!

Heck yes!

09-03-2019, 12:39 PM	#1
Nyc212 New Member 10 Rep 22 Posts Drives: Bmw 328i 2013 Join Date: Jun 2019 Location: NYC iTrader: (0)	Rattle/loose/fart noise on acceleration F30 Hi, I've been struggling with a weird noise when I press the acceleration the best I can describe it as a light tin pit is light being banged when I'm pressing the acceleration or cards and being skipped like kids do on a bicycle. Anyone had this or have it or know what it might be? It's a 328i 2012
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09-03-2019, 01:11 PM	#2
330istocknot First Lieutenant 185 Rep 394 Posts Drives: 330chino Join Date: Mar 2016 Location: chino iTrader: (0)	turbos?
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09-03-2019, 01:50 PM	#4
D Griff Enlisted Member 15 Rep 36 Posts Drives: 2014 328i, 2003 Corvette Join Date: Mar 2019 Location: Charlotte, NC iTrader: (0)	I am thinking you likely are hearing what I've hear recently (here's my thread) : https://f30.bimmerpost.com/forums/sh....php?t=1647106 Does it sound like this? I found that in this thread - https://f30.bimmerpost.com/forums/sh....php?t=1646586 I ordered the parking brake cable retainer clip from ECS as it seems like that may be the cause. I'll replace it this weekend and report back. __________________ 2014 328i M Sport Estoril Blue Six Speed - Daily 2003 Corvette 50 AE Six Speed - Track/Fun
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09-03-2019, 08:05 PM	#7
canman111 Private 17 Rep 59 Posts Drives: F30 328i RWD Join Date: Apr 2018 Location: Australia iTrader: (0) Garage List 2014 BMW 328i [0.00]	I'm in a similar situation to you too Nyc212 I only get it during light acceleration from a standstill and not while the car is already in motion. It's worse when I'm in moving from standstill on an upward incline. The sound seems to be coming from the rear side. I've looked under the car but nothing seems loose and doesnt seem to be exhaust flap rattle. Keep us posted if you find a solution.
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09-03-2019, 08:06 PM	#8
Jakejacobsonn Private 9 Rep 96 Posts Drives: Bmw 328i f30 Join Date: Aug 2019 Location: Mastic beach ny iTrader: (0)	Does it change sounds once car heats up mine has a similar sound if I picture what yours sounds like? Mine sounds completely different depending on map temp ewg open or closed also I got a muffler res delete
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09-09-2019, 05:32 AM	#11
canman111 Private 17 Rep 59 Posts Drives: F30 328i RWD Join Date: Apr 2018 Location: Australia iTrader: (0) Garage List 2014 BMW 328i [0.00]	I dont think it's an engine issue (I hope too). I'm thinking and hoping that a body trim under the car somewhere is loose and just needs to be tightened.
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08-20-2020, 09:28 AM	#13
adhrp Lieutenant Colonel 1263 Rep 1,587 Posts Drives: 2020 M550i (G30)/2021 X3 (G02) Join Date: Jun 2014 Location: FL iTrader: (0)	I have had two similar rattles - one was the exhaust flap because the pin had fallen off. Quick replacement. The second (and ongoing) one is a slight play in the wastegate probably causing a wastegate rattle as Solidjake said. The exhaust rattle is very obvious once the pin's fallen off so I suspect yours being more subtle might be the wastegate rattle. __________________ 2020 M550i (G30) \| Carbon Black/Black Nappa \| DHP \| DAP \| Executive \| Luxury Seating \| Park Asst \| Ceramic Controls \| Front/Rear Heated Seats \| 20" 668M wheels 2021 X3 (G02) \| Dark Graphite Metallic/Cognac \| Premium \| DAP \| Front/Rear Heated Seats Sold/Retired: 2012 328i (F30)
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08-28-2020, 09:05 PM	#15
DASH4237 Registered 0 Rep 1 Posts Drives: Silver 2008 BMW 335i Sedan Join Date: Nov 2011 Location: Macomb County, Michigan iTrader: (0)	I have the same noise on my 2015 bmw 328i did the retaining clip fix the issue??
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10-07-2020, 09:13 PM	#16
AJRufhaus Registered 3 Rep 2 Posts Drives: BMW F30 335i Join Date: Oct 2020 Location: California iTrader: (0)	Put the car in the air. Was able to relieve the sound with the help of 5 zip ties! Took all of 5 minutes, no tools needed or anything adjusted. Attached Images
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01-19-2021, 05:19 PM	#18
MikeyMrtnz Private 68 Rep 63 Posts Drives: 2016 328i M Sport Join Date: Sep 2019 Location: California iTrader: (0)	Bumping this thread as I have the same exact noise in that video posted above. Did the clips resolve the issue?
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04-05-2021, 10:34 PM	#20
mbfanatic1979 Registered 3 Rep 3 Posts Drives: 2016 328i M Tech Join Date: Nov 2016 Location: Taiwan/Canada/China iTrader: (0)	Finally, found the cure for the issue which I also recently started to experience. Many thanks!! __________________ 2009 VW Jetta V MT (380hp Toy) 2011 VW Jetta V AT (All Stock) 2011 MB GLK350 (Hers) 2016 BMW 328iM (His) 2020 Porsche Cayenne Coupe (Hers)
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