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BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > General E90 Sedan / E91 Wagon / E92 Coupe / E93 Cabrio > whining noise from engine



View Poll Results: Does your car engine makes whining noises?
Yes 39 63.93%
No 22 36.07%
Voters: 61. You may not vote on this poll

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      05-07-2006, 03:43 PM   #1
qwerty
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whining noise from engine

Based on the previous posts, lots of cars make whining noises. Some people actually like it and think that it is the design to enhance the engine sound. To verify if the noise is the result of a design, I am taking a poll.
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      05-07-2006, 03:46 PM   #2
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I can't help I'm afraid, I drive a Diesel!!
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      05-07-2006, 03:49 PM   #3
E90Fleet
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Please define the sound
And when does it appear ?
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      05-07-2006, 03:53 PM   #4
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Can you post an audio file or video with audio? What you call whining I think of as a low rumble. To me some turbos have a whining noise while NA engines don't.

This thread is useless without... sound.
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      05-07-2006, 03:53 PM   #5
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The engine sometimes makes noise, hot or cold. I've heard the similar sound coming from poorly maintained V6's especially Acura Legend. The whining is not loud and almost unnoticeable from the inside with all the windows closed. But it can be heard from outside.
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      05-07-2006, 03:57 PM   #6
David328M-Sport
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is it the engine or the steptronic transmission?
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      05-07-2006, 03:58 PM   #7
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What you're describing is probably how the inline 6 engine sounds.

Kinda like a sewing machine a medium speeds, then ripping chainsaw at higher speeds. OK, maybe that was an exaggeration, but you get the idea.

Having come from Honda's in the past, I like this mechanical whining sound. Makes me at one with the machine.
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      05-07-2006, 04:01 PM   #8
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it is coming from the engine. I rev (which I should not do) the engine on P and it still makes the noise.
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      05-07-2006, 04:03 PM   #9
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I don't know how sewing machine sounds like but my noise has high pitch to it.
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      05-07-2006, 04:12 PM   #10
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Just wondering, what is the reasoning behind not revving at P?
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      05-07-2006, 04:16 PM   #11
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Just to verify if the noise is coming from the engine or the transmission.
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      05-07-2006, 05:13 PM   #12
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Do you have 325er under your hood?
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      05-07-2006, 05:54 PM   #13
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whining on a BMW forum??

never
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      05-07-2006, 06:04 PM   #14
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Quote:
Originally Posted by ward
whining on a BMW forum??

never
I see, so it's not coming from the car, its the whining reverberating in his head from reading some of the posts.
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      05-07-2006, 06:14 PM   #15
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I wish that was the case.
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      05-07-2006, 06:17 PM   #16
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Quote:
Originally Posted by qwerty
I don't know how sewing machine sounds like but my noise has high pitch to it.
Here, feast your ears on these wonderful engine sounds:

http://www.bmw.com/com/en/insights/b...ds/sounds.html

The 4.8L and 5L sure don't sound like sewing machines!
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      05-07-2006, 07:17 PM   #17
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But seriously, I hope you don't have any problem. BTW, your name is on my keyboard! That's just too spooky!!
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      05-07-2006, 10:28 PM   #18
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Try turning off the AC compressor (the snow flake button), in rare situations, I hear a whining sound too. But as soon as the AC compressor button is turned off, the sound is gone. I don't know if that's the whining sound you are talking about.
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      05-08-2006, 02:34 AM   #19
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i get a whiny electronic noise when my revs go down.
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      05-08-2006, 07:24 PM   #20
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Quote:
Originally Posted by E90330iS
i get a whiny electronic noise when my revs go down.
I reported this whining noise a long time ago. Look at my posts, I don't have many and you'll find it. I hear the noise with the widnows all rolled up untill the car is in the 4th or 5t gear(when it revs up) and when it revs down from 3rd gear down until I come to a stop. I got the auto tranny.
The techs claimed it's normal but my loaner(exact same car) I got when I went in for service didn't sound anything like my car. So the poll results make sense to me, some have it and soem don't.
Anyway I have gotten used to it and did not try to get it "fixed" becasue I firmly beleive the less the techs mess around with your car, the less hassle you will have with your car
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      05-08-2006, 08:05 PM   #21
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mine makes a whirrling noise when i start her up. and when i press the clutch down the noise disappears. and when i release it it goes whirrling again. but i only notice it in the garage. i thought it was normal
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      05-08-2006, 09:31 PM   #22
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Quote:
Originally Posted by E90330iS
i get a whiny electronic noise when my revs go down.
From what you’re posting, the noise is the alternator. An overrunning “clutch” is used on the alternator drive pulley that allows the alternator to spin somewhat independently of engine speed. If the engine is revved up and shut down while at high rpm’s you will hear the alternator to continue to spin even though the engine is off. In other less complicated words...it's normal...
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