whining noise at high rpm?

IS2000 · 06-08-2007, 01:49 AM

I'm just wondering if it's normal for the N54 to be making high-pitch sound at 4K rpm and above? The sound is pretty noticeable inside the cabin.

jusbechillin · 06-08-2007, 01:58 AM

I hear a whining noise in the cabin as well.... Mine isnt the engine though.... I actually took it in to service to check it out and they said its a fan that kicks on to cool the electronics in the dash(near the glove box area)... They claim it's normal but it drives me nuts!

Mikes12985 · 06-08-2007, 01:58 AM

Quote:

Originally Posted by IS2000

I'm just wondering if it's normal for the N54 to be making high-pitch sound at 4K rpm and above? The sound is pretty noticeable inside the cabin.

this shouldnt happen unless u have AA Xede or Procede. I have the Xede and u can hear a pshhhht in the high rpms due to more boost and also i can hear the turbos spool up harder and louder. Mike.

IS2000 · 06-08-2007, 02:03 AM

Quote:

Originally Posted by jusbechillin

I hear a whining noise in the cabin as well.... Mine isnt the engine though.... I actually took it in to service to check it out and they said its a fan that kicks on to cool the electronics in the dash(near the glove box area)... They claim it's normal but it drives me nuts!

Does this only happen at higher RPM range? The noise in my car seems to be RPM related. It gets louder toward the redline.

IS2000 · 06-08-2007, 02:06 AM

Quote:

Originally Posted by Mikes12985

this shouldnt happen unless u have AA Xede or Procede. I have the Xede and u can hear a pshhhht in the high rpms due to more boost and also i can hear the turbos spool up harder and louder. Mike.

My car is bone stock with 1,400 miles. The sound doesn't seem like it's coming from the turbos, since I can hear it during deceleration as well. To me, it sounds similar to the whining noise from my EVO's tranny (which is normal).

CaptOz · 06-08-2007, 06:18 AM

Quote:

Originally Posted by jusbechillin

I hear a whining noise in the cabin as well....

I hear the same thing. I call it "the wife".

Cheers.

Nyulak · 06-08-2007, 09:16 PM

^ lol.

I was thinking along similar lines. The only whining I hear are the passengers complaining about my high speed antics.

jusbechillin · 06-08-2007, 09:17 PM

No mine is constant once the car heats up.....

turbotko · 06-08-2007, 09:21 PM

Do you only hear it on decel? The alternator has a one way clutch on the N54's that lets it freewheel when the motor spools down quick. Put the car in neutral and rev it to redline then let it come back to idle quickly. You'll hear the alternator wind down slowly.

If it's not that, figure out if it's engine speed dependent or vehicle speed dependent. Does it come through the radio speakers?

thealbert · 06-08-2007, 09:33 PM

The latest software update should fix this. I checked with the dealer already and they said by uploading the latest software into the car, the noise will go away!

I haven't had the chance to bring my car in for the update but once I do, I hope the sound will go away. Will update you guys once I get it done!

IS2000 · 06-10-2007, 11:37 PM

Quote:

Originally Posted by turbotko

Do you only hear it on decel? The alternator has a one way clutch on the N54's that lets it freewheel when the motor spools down quick. Put the car in neutral and rev it to redline then let it come back to idle quickly. You'll hear the alternator wind down slowly.

If it's not that, figure out if it's engine speed dependent or vehicle speed dependent. Does it come through the radio speakers?

I hear it during WOT as well (it's audible behind the engine sound). It is the same noise the alternator makes when putting the car in neutral and rev.

gashero · 06-11-2007, 09:50 AM

I heard the same thing yesterday, but it turn out to be those damn cicadas.

Montego335i · 06-13-2007, 10:06 PM

The only thing I hear is my radio

Jim9 · 08-30-2013, 04:28 PM

Back to the top. Recently my car whine on high rpm with full throttle only....power is there but never heard this noise before and I do have procede. Is this normal?

rismo · 08-31-2013, 12:01 PM

Could be turbo whine.. You can find examples on youtube.

007_e350 · 02-27-2015, 10:49 AM

reviving an old thread, I have a steady whine at all RPMs ... its pitch adjusts to RPM, I changed the serpentine belt, idlers, it didnt go away ... took the belt off and started the engine, no whine... I flushed PS fluid, didnt make a difference.... WTH is it

06-08-2007, 01:49 AM	#1
IS2000 Private First Class 17 Rep 163 Posts Drives: 2007 335i/ 2003 EVO8 Join Date: May 2007 Location: Bangkok iTrader: (3)	whining noise at high rpm? I'm just wondering if it's normal for the N54 to be making high-pitch sound at 4K rpm and above? The sound is pretty noticeable inside the cabin. __________________ 2018 F87 M2 2014 F30 328i M Sport Alpine White/ Coral Red leather
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06-08-2007, 01:58 AM	#2
jusbechillin /\|/\|uffin/\|/\|an 11 Rep 196 Posts Drives: 2007 Space Gray BMW 335I coupe Join Date: Sep 2006 Location: USA iTrader: (0)	I hear a whining noise in the cabin as well.... Mine isnt the engine though.... I actually took it in to service to check it out and they said its a fan that kicks on to cool the electronics in the dash(near the glove box area)... They claim it's normal but it drives me nuts!
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06-08-2007, 09:16 PM	#7
Nyulak Captain 29 Rep 957 Posts Drives: 2022 X3 M40i Join Date: Feb 2007 Location: SheffVill, OH iTrader: (4) Garage List 2009 BMW 535xi [10.00]	^ lol. I was thinking along similar lines. The only whining I hear are the passengers complaining about my high speed antics.
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06-08-2007, 09:17 PM	#8
jusbechillin /\|/\|uffin/\|/\|an 11 Rep 196 Posts Drives: 2007 Space Gray BMW 335I coupe Join Date: Sep 2006 Location: USA iTrader: (0)	No mine is constant once the car heats up.....
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06-08-2007, 09:21 PM	#9
turbotko Lieutenant 67 Rep 527 Posts Drives: 09 E90 M3 Join Date: May 2007 Location: georgia iTrader: (3)	Do you only hear it on decel? The alternator has a one way clutch on the N54's that lets it freewheel when the motor spools down quick. Put the car in neutral and rev it to redline then let it come back to idle quickly. You'll hear the alternator wind down slowly. If it's not that, figure out if it's engine speed dependent or vehicle speed dependent. Does it come through the radio speakers? __________________ 10 AW on fox E90 M3 with 2 pedals, gentleman’s ride 08 AW on fox E92 M3 also 2 pedals, a bit more rowdy
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06-08-2007, 09:33 PM	#10
thealbert Lieutenant 32 Rep 420 Posts Drives: G20 M340i xDrive Join Date: Feb 2007 Location: Home Sweet Home iTrader: (0)	The latest software update should fix this. I checked with the dealer already and they said by uploading the latest software into the car, the noise will go away! I haven't had the chance to bring my car in for the update but once I do, I hope the sound will go away. Will update you guys once I get it done!
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06-11-2007, 09:50 AM	#12
gashero Private First Class 3 Rep 192 Posts Drives: 335i A22 sedan streptronic Join Date: Nov 2006 Location: thrillville iTrader: (1)	I heard the same thing yesterday, but it turn out to be those damn cicadas. __________________
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06-13-2007, 10:06 PM	#13
Montego335i Enlisted Member 2 Rep 32 Posts Drives: 2016 BMW M5 Join Date: Mar 2007 Location: NJ iTrader: (0)	The only thing I hear is my radio
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08-30-2013, 04:28 PM	#14
Jim9 Enlisted Member 0 Rep 35 Posts Drives: 335i Alpine Join Date: Jun 2013 Location: Minnesota iTrader: (0)	Back to the top. Recently my car whine on high rpm with full throttle only....power is there but never heard this noise before and I do have procede. Is this normal?
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08-31-2013, 12:01 PM	#15
rismo Captain 75 Rep 911 Posts Drives: BMW E92 335 Join Date: Jul 2008 Location: Europe iTrader: (0)	Could be turbo whine.. You can find examples on youtube. __________________ BMW 335 E92 09 - Full options - DKG - MHD by Buraq - RB Next Gen - RB Inlets/Outlet - Forge Diverter Valves - AR Catless DP - Afe Intake - Helix IC - FuelIT Stage 2 LPFP - Ar Oil Cooler - PPK Water Cooler - M3 Suspension - JRZ RS1 Shocks - Eibach Pro Springs - Drexler LSD - BMW IS Exhaust - Carbon Endurance Brake Pads - Stainless Steel Brake Lines - M101 Wheels - Michelin PS2 - M-Tech Body - M-Strutbar BMW M550i G30 2019 - BM3
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02-27-2015, 10:49 AM	#16
007_e350 Lieutenant Colonel 217 Rep 1,909 Posts Drives: 335i 2008 MHD'd / x5d E70 Join Date: May 2013 Location: left lane iTrader: (3)	reviving an old thread, I have a steady whine at all RPMs ... its pitch adjusts to RPM, I changed the serpentine belt, idlers, it didnt go away ... took the belt off and started the engine, no whine... I flushed PS fluid, didnt make a difference.... WTH is it __________________ Mods: 7" VRSF FMIC, Forge DVs, RB PCV, BMS Oil Cooler, VRSF DPs, MHD, JB4g5, OFT DIYs: Walnut blasting : Trans Oil at 45k, w Filter at 65k : Diff Oil Flush @ 45k : WP&TS @ 69k : Alternator @ 79k --- E70d Alphabet Soup del 44.4k : JR Stg2.25 tune : Buzzken Catted Exhaust : Trans fluid drain/ fill (3 Qrts), both Diffs fluids flushed Wheels: Style 95s on PSSs (Sold): AG 359s on S04s : 162s on Blizzaks : Rohana RF1 Matt black
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