Beep when accelerating (fbo e50) (problem solved!)

OB · 07-11-2014, 01:02 PM

Hey guys,

So I have been hearing a strange beeping sound when accelerating. Didn't bother me that much before since it wasn't so loud. But... Just installed BMS new Cowl Filters that allows more sound being transfered into the car.
Sadly, but not unexpected, the beeping noise can now be heard 5x louder inside the car. It's driving me nuts. Possibly an air leak or something, would appreciate if you guys listened to the vid linked below.

COBB AP
E50 PTF
aFE stage 2 PRO 5R air intake system w/ scoops
VRSF 7" IC
VRSF 3" catless DPs
ER CP
Forge DVs
FFTEC/Vishnu LPFP
BMS OCC
BMS Cowl filters

---

Cheers,
Ola

The1ontop · 07-11-2014, 02:22 PM

Sounds weird man gl finding the culprit it could be something simple

j1gilles · 07-11-2014, 03:08 PM

Quote:

Originally Posted by OB

Hey guys,

So I have been hearing a strange beeping sound when accelerating. Didn't bother me that much before since it wasn't so loud. But... Just installed BMS new Cowl Filters that allows more sound being transfered into the car.
Sadly, but not unexpected, the beeping noise can now be heard 5x louder inside the car. It's driving me nuts. Possibly an air leak or something, would appreciate if you guys listened to the vid linked below.

COBB AP
E50 PTF
aFE stage 2 PRO 5R air intake system w/ scoops
VRSF 7" IC
VRSF 3" catless DPs
ER CP
Forge DVs
FFTEC/Vishnu LPFP
BMS OCC
BMS Cowl filters

---

Cheers,
Ola

Rear turbo intake tube off????

OB · 07-11-2014, 03:17 PM

Quote:

Originally Posted by j1gilles

Quote:

Originally Posted by OB

Hey guys,

So I have been hearing a strange beeping sound when accelerating. Didn't bother me that much before since it wasn't so loud. But... Just installed BMS new Cowl Filters that allows more sound being transfered into the car.
Sadly, but not unexpected, the beeping noise can now be heard 5x louder inside the car. It's driving me nuts. Possibly an air leak or something, would appreciate if you guys listened to the vid linked below.

COBB AP
E50 PTF
aFE stage 2 PRO 5R air intake system w/ scoops
VRSF 7" IC
VRSF 3" catless DPs
ER CP
Forge DVs
FFTEC/Vishnu LPFP
BMS OCC
BMS Cowl filters

---

Cheers,
Ola

Rear turbo intake tube off????

Could be. Boost isn't failing, wouldn't it do so if the inlet tube went off?

j1gilles · 07-11-2014, 03:27 PM

Quote:

Originally Posted by OB

Could be. Boost isn't failing, wouldn't it do so if the inlet tube went off?

No, not if it is the intake side. It is a common problem on our cars and can cause some strange noises

OB · 07-11-2014, 03:42 PM

Quote:

Originally Posted by j1gilles

Quote:

Originally Posted by OB

Could be. Boost isn't failing, wouldn't it do so if the inlet tube went off?

No, not if it is the intake side. It is a common problem on our cars and can cause some strange noises

Got it. The shop did a smoke test a few weeks ago and there was a minor leak at the turbo inlet. So maybe it'a worse now and acting out. Seems like quite time consuming to get that tube fixed.

Cloud9blue · 07-11-2014, 04:25 PM

Don't know about yours, but I am pretty sure the sound is coming out from the driver side, where the charge pipe and DVs are located.

OB · 07-11-2014, 04:27 PM

Quote:

Originally Posted by Cloud9blue

Don't know about yours, but I am pretty sure the sound is coming out from the driver side, where the charge pipe and DVs are located.

Not sure, hope to find out on Monday when the shop will have a look at it

Cloud9blue · 07-11-2014, 09:17 PM

OP, tightened down all the clamps (CP, FMIC, etc.) simple enough to do by yourself and potentially save yourself the trouble of going to the shop.

solved mine after i redid my FMIC clamps.

///Mposter · 07-11-2014, 09:34 PM

There was another thread pointing to install of the cone filters , specifically the rear, that when pushed back , caused the inlet to come loose. Either causes a siren sound or similar sounds like whistling.

///Mposter · 07-11-2014, 09:56 PM

For laughs. It made me think of your problem.

j1gilles · 07-11-2014, 10:27 PM

Quote:

Originally Posted by ///Mposter

There was another thread pointing to install of the cone filters , specifically the rear, that when pushed back , caused the inlet to come loose. Either causes a siren sound or similar sounds like whistling.

+1

OB · 07-12-2014, 03:34 AM

Will check on Sunday if the tclamps need some more tightening.

Yeah I read that thread and I do think it's likely the dci putting stress on the tube. Will let you guys know in a few days how it goes.

OB · 07-12-2014, 03:36 AM

Quote:

Originally Posted by ///Mposter

For laughs. It made me think of your problem.

+1

335i-boy · 07-13-2014, 10:23 AM

Subbed to this thread.

Installed BMS CP and Forge DV's. Had to pull everything apart due to installing DV's the wrong way up. After reinstalling everything, including DCI's and checking hose attachment point on rear inlet turbo inlet piping, I am now experiencing a turbo whine that was not there before.

Will keep a close eye on hey you go with it.

OB · 07-14-2014, 06:01 AM

Just came back from the shop. Had the car up on the lift and indeed the rear turbo inlet tube wasn't pushed all the way in. Wasn't that far out either but we managed to push it in a tad more.
Went for a test drive and the beep still appears on heavy load. My mechanic doesn't think that the beep is turbo related, more likely a hose or connection releasing air at higher boost levels.

We did a pressure test (smoke) a few weeks ago, like I wrote before, but it was only at about 12psi. The shop will manufacture the needed equipment so we can pressurize the system at 20-23psi. I'm currently running at 17,5 psi boost. Hopefully this will be done on Thursday. First we need to find the right measurements (without taking mine off) for the VRSF 7" intercooler silicon couplers (IC to CP), the shop has sent a question through the website.

OB · 07-17-2014, 01:46 PM

Quote:

Originally Posted by Cloud9blue

OP, tightened down all the clamps (CP, FMIC, etc.) simple enough to do by yourself and potentially save yourself the trouble of going to the shop.

solved mine after i redid my FMIC clamps.

Just got back from the shop, problem solved. Turned out that the clamps between my FMIC and CP weren't tightened down enough, so your guess was spot on.

When we did the smoke test a few weeks ago it was on 10-12psi. Since I couldn't understand what the f* was making this noise I asked for one more pressure test. This time we ran higher pressure and the noise came on at about 15psi. So that explained why I only heard the beeping noise when I stepped on it a bit more. Lesson learned, pressure test the system on the appropriate psi level if you're running higher than stock boost..

335i-boy · 07-18-2014, 08:10 AM

Thanks for reporting back. Glad you got it sorted out.

OB · 07-18-2014, 01:44 PM

Quote:

Originally Posted by 335i-boy

Thanks for reporting back. Glad you got it sorted out.

No worries. How will you approach your problems?

335i-boy · 07-20-2014, 10:42 AM

Quote:

Originally Posted by OB

Quote:

Originally Posted by 335i-boy

Thanks for reporting back. Glad you got it sorted out.

No worries. How will you approach your problems?

I'm going to check rear turbo inlet piping as it may have moved putting on the Forge DV hose.. then removing it... then putting it back on. There is a good chance I might have moved it enough to slip out of the turbo inlet.

Will also check all vacuum lines for leaks. Car has 40k miles and I haven't looked at them yet.

Will get a boost pressure check done as well. Between these 3 actions hopefully I can get it sorted.

07-11-2014, 01:02 PM	#1
OB Lieutenant 40 Rep 433 Posts Drives: 335i wagon, Pure Stage 2+PI... Join Date: Sep 2012 Location: Sweden iTrader: (1) Garage List 2007 BMW 335i E91 ( ... [8.90]	Beep when accelerating (fbo e50) (problem solved!) Hey guys, So I have been hearing a strange beeping sound when accelerating. Didn't bother me that much before since it wasn't so loud. But... Just installed BMS new Cowl Filters that allows more sound being transfered into the car. Sadly, but not unexpected, the beeping noise can now be heard 5x louder inside the car. It's driving me nuts. Possibly an air leak or something, would appreciate if you guys listened to the vid linked below. COBB AP E50 PTF aFE stage 2 PRO 5R air intake system w/ scoops VRSF 7" IC VRSF 3" catless DPs ER CP Forge DVs FFTEC/Vishnu LPFP BMS OCC BMS Cowl filters --- Cheers, Ola __________________ FBO 335i N54 WAGON Pure Stage 2 Turbos Port Injection Stage 3 LPFP E85... Last edited by OB; 07-17-2014 at 01:47 PM..
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07-11-2014, 02:22 PM	#2
The1ontop Second Lieutenant 12 Rep 228 Posts Drives: 2007 335i E92 Join Date: Nov 2013 Location: Maryland iTrader: (0)	Sounds weird man gl finding the culprit it could be something simple
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07-11-2014, 04:25 PM	#7
Cloud9blue Brigadier General 717 Rep 3,251 Posts Drives: around the potholes Join Date: Aug 2008 Location: NY/NJ/MA iTrader: (13)	Don't know about yours, but I am pretty sure the sound is coming out from the driver side, where the charge pipe and DVs are located. __________________ 09 BMW E92 335i: Top Mount EFR 7670 / Dinan / AP Racing / Wavetrac / TC Kline [Full Mod List] 07 BMW R1200S: Shine Yellow / Akrapovic / Ohlins 19 Volvo V90 T6: R-Design / Bowers & Wilkins / Polestar Optimization
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07-11-2014, 09:17 PM	#9
Cloud9blue Brigadier General 717 Rep 3,251 Posts Drives: around the potholes Join Date: Aug 2008 Location: NY/NJ/MA iTrader: (13)	OP, tightened down all the clamps (CP, FMIC, etc.) simple enough to do by yourself and potentially save yourself the trouble of going to the shop. solved mine after i redid my FMIC clamps. __________________ 09 BMW E92 335i: Top Mount EFR 7670 / Dinan / AP Racing / Wavetrac / TC Kline [Full Mod List] 07 BMW R1200S: Shine Yellow / Akrapovic / Ohlins 19 Volvo V90 T6: R-Design / Bowers & Wilkins / Polestar Optimization
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07-11-2014, 09:34 PM	#10
///Mposter Macgyver 213 Rep 942 Posts Drives: 2007 e92 335i Join Date: Jun 2011 Location: Greensboring iTrader: (0)	There was another thread pointing to install of the cone filters , specifically the rear, that when pushed back , caused the inlet to come loose. Either causes a siren sound or similar sounds like whistling. __________________ GTX3076R , ADV, JB4, FMIC, BOV, 17"APEX, 255/40/17 SQ, 6-SPD Manual
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07-11-2014, 09:56 PM	#11
///Mposter Macgyver 213 Rep 942 Posts Drives: 2007 e92 335i Join Date: Jun 2011 Location: Greensboring iTrader: (0)	For laughs. It made me think of your problem. __________________ GTX3076R , ADV, JB4, FMIC, BOV, 17"APEX, 255/40/17 SQ, 6-SPD Manual
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07-12-2014, 03:34 AM	#13
OB Lieutenant 40 Rep 433 Posts Drives: 335i wagon, Pure Stage 2+PI... Join Date: Sep 2012 Location: Sweden iTrader: (1) Garage List 2007 BMW 335i E91 ( ... [8.90]	Will check on Sunday if the tclamps need some more tightening. Yeah I read that thread and I do think it's likely the dci putting stress on the tube. Will let you guys know in a few days how it goes. __________________ FBO 335i N54 WAGON Pure Stage 2 Turbos Port Injection Stage 3 LPFP E85...
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07-13-2014, 10:23 AM	#15
335i-boy Lieutenant 15 Rep 457 Posts Drives: E92 335i M-Sport Join Date: Jun 2010 Location: Australia iTrader: (0)	Subbed to this thread. Installed BMS CP and Forge DV's. Had to pull everything apart due to installing DV's the wrong way up. After reinstalling everything, including DCI's and checking hose attachment point on rear inlet turbo inlet piping, I am now experiencing a turbo whine that was not there before. Will keep a close eye on hey you go with it. __________________ 2008 E92 335i M-Sport \| Sapphire Black \| Sunroof \| Creme Beige \| Poplar Grey \| Logic 7 \| 6AT \| 19" AG M359's \| Michelin PS4S \| LUX V3 \| MHD V5 E40 \| Steve AZ Walbro inline \| Vishnu DCI \| BMS CP \| AR Design Catless DP's \| Forge DV's \| Helix IC \| (Stock Cat. back) \|
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07-14-2014, 06:01 AM	#16
OB Lieutenant 40 Rep 433 Posts Drives: 335i wagon, Pure Stage 2+PI... Join Date: Sep 2012 Location: Sweden iTrader: (1) Garage List 2007 BMW 335i E91 ( ... [8.90]	Just came back from the shop. Had the car up on the lift and indeed the rear turbo inlet tube wasn't pushed all the way in. Wasn't that far out either but we managed to push it in a tad more. Went for a test drive and the beep still appears on heavy load. My mechanic doesn't think that the beep is turbo related, more likely a hose or connection releasing air at higher boost levels. We did a pressure test (smoke) a few weeks ago, like I wrote before, but it was only at about 12psi. The shop will manufacture the needed equipment so we can pressurize the system at 20-23psi. I'm currently running at 17,5 psi boost. Hopefully this will be done on Thursday. First we need to find the right measurements (without taking mine off) for the VRSF 7" intercooler silicon couplers (IC to CP), the shop has sent a question through the website. __________________ FBO 335i N54 WAGON Pure Stage 2 Turbos Port Injection Stage 3 LPFP E85...
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07-18-2014, 08:10 AM	#18
335i-boy Lieutenant 15 Rep 457 Posts Drives: E92 335i M-Sport Join Date: Jun 2010 Location: Australia iTrader: (0)	Thanks for reporting back. Glad you got it sorted out. __________________ 2008 E92 335i M-Sport \| Sapphire Black \| Sunroof \| Creme Beige \| Poplar Grey \| Logic 7 \| 6AT \| 19" AG M359's \| Michelin PS4S \| LUX V3 \| MHD V5 E40 \| Steve AZ Walbro inline \| Vishnu DCI \| BMS CP \| AR Design Catless DP's \| Forge DV's \| Helix IC \| (Stock Cat. back) \|
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