2007 3.0 auto strange oscillating sound - Bimmerfest - BMW Forums

Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > X Series > X3 E83 (2004 - 2010)

X3 E83 (2004 - 2010)
Talk about the E83 BMW X3 in this forum!

Thread Tools Display Modes
Old 01-29-2019, 09:28 PM
aperrin aperrin is offline
Registered User
Join Date: Jan 2019
Posts: 4
Mein Auto:
2007 3.0 auto strange oscillating sound

Hey all, first post here. I have been reading this forum for a while, although I have not yet contributed. This x3 is my first car (after years of riding/DIYing all kinds of mopeds/small motorcycles), and I absolutely love driving it. I have been trying to figure out this issue for a while, and its starting to make me uncomfortable about taking the car on long drives.

Its 2007 X3 3.0 Auto with a very very strange sound...Its a mid/high pitched oscillating sound that changes in pitch with vehicle speed (not RPM). It is NOT reproducible in neutral. The sound is not constant, but I have noticed patterns of when it will occur (although it still seems to be random on how loud/often).

It happens the most while coasting on deceleration, but also while accelerating around 2nd and 3rd gear. Sometimes the pitch is a constant singing sound, and other times it is more warbly and definitely sounds mechanical. Here are some videos....

Oct 22 2018:

Jan 29 2019

The sound started happening shortly after I had my indy (who is amazing) replace the rear driveshaft that was completely rusted, change the T-case fluid, and change one of the VANOS solenoids (to clear a code). All of this made a huge difference in drivability, but also caused this weird sound.

That was back in September and the noise has not gotten significantly better or worse since then. I havenít noticed a loss of drivability except for a slight hesitation on throttle and maybe some delayed shifting while climbing hills. It is still way better than before I had the driveshaft and T-case fluid done. I really trust my mechanic, but he is stumped on this one too. He thinks its probably the stupid built-in PCV on the valve cover, although hesitant because it is not reproducible in neutral. He said the only way to tell if its the valve cover is to see if it gets worse, because it inevitably would (which it hasn't in nearly 4000 miles).

I had him change the front diff fluid just in case, but that didnít seem to fix it eitherÖ.So I was wondering if anybody had ideas! Could it be gear whine from the transmission or transfer case? Or could it be that it is the valve cover and the sound is only occurring at very specific engine pressure...

I am open to any ideas...thanks!_a_
Reply With Quote
Sponsored Links
Old 02-13-2019, 03:58 PM
aperrin aperrin is offline
Registered User
Join Date: Jan 2019
Posts: 4
Mein Auto:
The sound hasn't got better or worse...nobody has any ideas?
Reply With Quote
Old 02-13-2019, 05:47 PM
frisbeeguy's Avatar
frisbeeguy frisbeeguy is offline
Officially Welcomed to the 'Fest
Location: Virginia
Join Date: Apr 2018
Posts: 462
Mein Auto: 07 BMW X3, 98 QX4
I don't know....I'm stumped too. Sounds like whale mating calls.

As for PCV testing see this thread: https://www.e90post.com/forums/showthread.php?t=1421986
post #'s 16 onward...Post 17 for PCV testing.

Learn more about your BMW from Radical9Auto!

Last edited by frisbeeguy; 02-13-2019 at 05:48 PM.
Reply With Quote
Sponsored Links
Old 02-13-2019, 05:53 PM
dukedkt442's Avatar
dukedkt442 dukedkt442 is offline
Location: Hudson Valley/LI, NY; Treasure Coast, FL; OBX, NC.
Join Date: Feb 2013
Posts: 4,610
Mein Auto: 2008 BMW X3
It does sound Like a PCV whistle. How difficult is it to remove the oil cap with the engine running?

Sent from my iPhone using Bimmerfest

The "need to have my head examined " E21 build thread

2008 BMW E83 1981 BMW 320i
2016 Chevy Silverado 2011 VW Jetta
1984 GMC S-15 1986 Oldsmobile 442
Another half dozen '60s tractors
Reply With Quote
Old 02-13-2019, 09:59 PM
mchova01 mchova01 is offline
Officially Welcomed to the 'Fest
Location: San Francisco, CA
Join Date: Jul 2012
Posts: 173
Mein Auto: 2007 X3 OSi 3.0 AT
Unless you are off-roading in the videos, the suspension looks awful. I didn't realize how bad mine is until I got an brand new VW Atlas.

I'm working on figuring out the best suspension revamp.

I do not have any idea on the noise. I never heard it before.
Reply With Quote
Old 02-14-2019, 12:22 AM
BimmurBrothor's Avatar
BimmurBrothor BimmurBrothor is offline
Location: Savannah GA
Join Date: Jun 2017
Posts: 3,347
Mein Auto: X3 M54 150k
I hear the sound...."eerie" ***128561; Seems to me i heard this sound from a much larger type trucks and from the drive train or transmission. Have you mentioned the status of the transmission? But again you did highlight that this sound started around when you had the drive shaft replaced...on my first hearing the thought occurred to me that something is too tight! But again it was a quick notion.

06 X3 199k
05 X3 181k
04 X3 162k
[FONT="Arial Black"]
Reply With Quote
Old 02-14-2019, 05:19 PM
mtbrdad mtbrdad is offline
Officially Welcomed to the 'Fest
Location: Elmhurst, IL
Join Date: Apr 2013
Posts: 763
Mein Auto: 2018 X3 M40i
My guess says it's the aftermarket driveshaft I had the same noise. Here's my thread on it https://www.bimmerfest.com/forums/sh....php?t=1248498
Current Vehicles
2019 Audi Q7 3.0
2018 X3 M40i
2008 Saturn Astra XR Manual
2007 X3 3.0si
1997 Kaswasaki Concours
Reply With Quote

See More Related BMW Stories

differential, high pitch, oscillation, sound, transfer case, valve cover, whistle, x3

Forum Navigation
Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > X Series > X3 E83 (2004 - 2010)
Today's Posts Search
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Strange sound when turning steering wheel both left or right...any advice? es 3 Series & 4 Series 10 11-22-2004 10:47 AM
Premium sound in the X5 3.0 rodster13 X5 E53 (1999 - 2006) 0 03-18-2004 12:09 PM
Strange sound from dash/engine compartment jse 3 Series & 4 Series 4 03-15-2004 10:52 PM
Strange Sound PunchIt 3 Series & 4 Series 0 07-25-2002 06:53 AM

All times are GMT -7. The time now is 10:43 PM.

Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
© 2001- VerticalScope Inc. All rights reserved.