Welcome to Bimmerfest -- The #1 Online Community for BMW related information! Please enjoy the discussion forums below and share your experiences with the 200,000 current, new and past BMW owners. The forums are broken out by car model and into other special interest sections such as BMW European Delivery and a special forum to voice your questions to the many BMW dealers on the site to assist our members!

Please follow the links below to help get you started!

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!

Reply
 
Thread Tools Display Modes
  #1  
Old 10-29-2009, 09:18 AM
AzNMpower32's Avatar
AzNMpower32 AzNMpower32 is offline
Tar Heel Faithful
Location: WNC
 
Join Date: Oct 2005
Posts: 13,909
Send a message via AIM to AzNMpower32
Mein Auto: X3
What's that burning smell?

So yesterday, I took a drive out to the far western reaches of the state. Crossed three mountain passes (amazing roads) and generally it was a spectacular sight, both the scenery and the mountains.



However, my X3 seems to be burning something whenever it's put under load for extended periods of time. US-250 has a lot of relatively long, steep gradients when climbing up, and thus the X3 was seeing 3500-4500rpm for 6-7km stretches at a time. There'd be this burning smell that gets into the cabin but goes away after a bit. It's done this before, always when it's being pushed hard for extended amounts of time.

Me thinks its burning motor oil. It was not overheating. The engine actually circulates more coolant under load, and thus the operating temp of the coolant actually fell to 81-83C when ascending (rising to 94 under normal circumstances). Ideas? Serious problem? Or is oil consumption normal. The climate control was off all day.

By the way, I have an outrageous video of me descending a set of hairpins but I'm so NOT posting that. But let's just say, I wouldn't have the X3 suspension any other way than "stiff".

Last edited by AzNMpower32; 10-29-2009 at 09:25 AM.
Reply With Quote
Ads by Google
  #2  
Old 10-29-2009, 09:44 AM
X3-terrestrial's Avatar
X3-terrestrial X3-terrestrial is offline
Aficionado
Location: N.Miss - Memphis,TN Area
 
Join Date: Aug 2008
Posts: 2,630
Mein Auto: '05 X3, '95 M3, '89 MkI
Valve cover gasket- Oil drips on the heat shields, gets burned and gets into the car through the cabin air filter.
Check the shields above the exhaust maniful for burned oil traces.

Come on! post that video! you know you want!

Here's how our e46 looked when the valve cover gasket failed, the smell was disturbing. The reason you don't smell it all the time is maybe you have the auto air-recirculation, so it cycles between fresh and recirc by itself...


Last edited by X3-terrestrial; 10-29-2009 at 09:50 AM. Reason: added pic
Reply With Quote
  #3  
Old 10-29-2009, 09:53 AM
Ndiblasi Ndiblasi is offline
Registered User
Location: Philly
 
Join Date: Sep 2009
Posts: 20
Mein Auto: X3
post the vid!
__________________
07 X3 3.0si
Reply With Quote
  #4  
Old 10-29-2009, 12:26 PM
noego noego is offline
Officially Welcomed to the 'Fest
Location: Central Illinois
 
Join Date: Feb 2006
Posts: 800
Mein Auto: '06 X3, 1997 Chevy truck,
something is leaking.
Reply With Quote
  #5  
Old 10-29-2009, 02:45 PM
AzNMpower32's Avatar
AzNMpower32 AzNMpower32 is offline
Tar Heel Faithful
Location: WNC
 
Join Date: Oct 2005
Posts: 13,909
Send a message via AIM to AzNMpower32
Mein Auto: X3
Doesn't appear to be the valve cover gaskets, since there is no evidence of any leaks under the hood on either side of the motor. I know what a valve cover gasket leak is like; it was the most annoying problem on my old Lexus (which was never fixed).

I'm not posting the video publicly. PM me if you really want to see me descend a mountain in 2m30s.

Last edited by AzNMpower32; 10-29-2009 at 05:39 PM.
Reply With Quote
  #6  
Old 10-30-2009, 08:38 AM
X3-terrestrial's Avatar
X3-terrestrial X3-terrestrial is offline
Aficionado
Location: N.Miss - Memphis,TN Area
 
Join Date: Aug 2008
Posts: 2,630
Mein Auto: '05 X3, '95 M3, '89 MkI
Quote:
Originally Posted by AzNMpower32 View Post
Doesn't appear to be the valve cover gaskets,
Something has to be leaking, I don't think you will normaly have burning smell. Is probably just starting out and you can't see it. Was it after you took that video?
Reply With Quote
  #7  
Old 10-30-2009, 09:25 AM
Evlengr's Avatar
Evlengr Evlengr is offline
Ukemi - that's how I roll
Location: MD
 
Join Date: Feb 2007
Posts: 4,252
Mein Auto: 2013 Audi S4 2010 MT MCS
Is that before or after the extra hot burrito? Lol.
__________________
2013 S4 Loaded (and NO RFT's) Awesome is an understatement
2008 MT X3 RIP you were a faithful sidekick and will be missed.
2007 AT X3 RIPOS
2005 GC
2000 Jeep Cherokee
1997 Twin Turbo RX-7
1984 GTI Wolfsburg Edition Neuspeed and more
Reply With Quote
  #8  
Old 10-30-2009, 11:37 AM
AzNMpower32's Avatar
AzNMpower32 AzNMpower32 is offline
Tar Heel Faithful
Location: WNC
 
Join Date: Oct 2005
Posts: 13,909
Send a message via AIM to AzNMpower32
Mein Auto: X3
Quote:
Originally Posted by X3-terrestrial View Post
Something has to be leaking, I don't think you will normaly have burning smell. Is probably just starting out and you can't see it. Was it after you took that video?
No, actually it 's happened before but it never lasts. It's really whenever I'm climbing a long, long hill and it doesn't even have to be really high rpm. The only thing that I've noticed out of place are some odd stains on parts of the underbody. They've been there for years and I've never really given it a second thought. I'll check oil level tonight and see if it's dropped noticeably.
Reply With Quote
  #9  
Old 10-30-2009, 12:17 PM
Mystic1's Avatar
Mystic1 Mystic1 is online now
Officially Welcomed to the 'Fest
Location: Milwaukee
 
Join Date: Jan 2008
Posts: 761
Mein Auto: '11 328xi, '09 550i
If not oil leaking anywhere, you might consider you belt(s). If they are original they might be slipping a bit when the engine spins faster. They do give off that burning smell when slipping or rubbing on an improperly aligned idler/pulley.
Reply With Quote
  #10  
Old 11-02-2009, 06:43 AM
madurodave's Avatar
madurodave madurodave is offline
BMW Enthusiast!
Location: NH
 
Join Date: Oct 2008
Posts: 5,327
Mein Auto: 2007 Z4+X3, 2006 530Xi
Quote:
Originally Posted by Evlengr View Post
Is that before or after the extra hot burrito? Lol.
Haha - yeah, mt wife complains about smells sometimes. I blame it on the cows!
__________________
Madurodave

My garage: 2007 BMW Z4 3.0si Manual, 2007 BMW X3, 2006 BMW 530xi

Retired: 1998 BMW Z3

Member of BMWCCA!
Reply With Quote
  #11  
Old 11-03-2009, 12:55 AM
minicrazy592's Avatar
minicrazy592 minicrazy592 is offline
about the mini part....
Location: Fulshear, TX
 
Join Date: Sep 2008
Posts: 1,085
Send a message via Skype™ to minicrazy592
Mein Auto: E90 M-tech, E30 M-tech
My X3 did this every time when I got onto the highway, aka 3500k+ RPMs for a few seconds. I never figured it out. I looked for leaking anything and found nothing. I checked for melting plastic or something, but never found anything. My mom now drives it so it doesn't zoom zoom like it did when I had it and I've asked her to keep a nose out for it. So far nothing to report.
__________________
-J.T.
Will be missed: 04' E83 M54B30
Reply With Quote
  #12  
Old 11-03-2009, 03:07 PM
madurodave's Avatar
madurodave madurodave is offline
BMW Enthusiast!
Location: NH
 
Join Date: Oct 2008
Posts: 5,327
Mein Auto: 2007 Z4+X3, 2006 530Xi
Just don't ask PPXYZ - probably the X3's heated seats and steering wheel are on fire!
__________________
Madurodave

My garage: 2007 BMW Z4 3.0si Manual, 2007 BMW X3, 2006 BMW 530xi

Retired: 1998 BMW Z3

Member of BMWCCA!
Reply With Quote
Reply

Bookmarks


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


All times are GMT -7. The time now is 07:30 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
© 2001-2011 performanceIX, Inc. All Rights Reserved .: guidelines .:. privacy .:. terms