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 04-21-2012, 03:59 PM
hale2thevictor hale2thevictor is offline
Registered User
Location: Ohio
 
Join Date: Mar 2012
Posts: 16
Mein Auto: 2005 BMW X3 2.5i
Exclamation Will bad ccv valve let oil into cylinder?

I'm getting smoke on start up and it smelled like oil, so I checked my levels and I am losing oil. I also checked my spark plugs in cylinders 1, 2, and 3 and they had a little bit of oil on them. Could this be a bad ccv valve or valve seals? Anyone have a clue? I am getting codes P0171, and P0174, lean in bank 1 and bank 2. When I first start it up it also has a bit of a rough idle. PLEASE HELP!!!!
Reply With Quote
Advertisement
  #2  
Old 04-21-2012, 10:01 PM
Supercourse Supercourse is offline
Officially Welcomed to the 'Fest
Location: British Columbia, Canada
 
Join Date: Feb 2008
Posts: 3,119
Mein Auto: 2004 X3 2.5i
See this good description to answer your question:

http://forum.e46fanatics.com/showpos...7&postcount=20

If it is the crankcase vent valve/oil separator gone bad, you should have got an audible indication a month or two back when shutting the X3 off.
Sort of like a fog horn.

If so, you may be running short of time to get it fixed.

Check the underside of the oil filler cap for signs of water mixed with oil - the mayonnaise look.
That can be a clincher.

A good shop can probably check the condition of the hoses from underneath without having to disassemble anything and then give you a quote.
Reply With Quote
  #3  
Old 04-22-2012, 06:37 AM
timfitz63's Avatar
timfitz63 timfitz63 is offline
MT = Doppler Shifting
Location: Lorena & San Antonio, TX
 
Join Date: Aug 2010
Posts: 860
Mein Auto: 2007 X3 (MT)
Quote:
Originally Posted by hale2thevictor View Post
I'm getting smoke on start up and it smelled like oil, so I checked my levels and I am losing oil. I also checked my spark plugs in cylinders 1, 2, and 3 and they had a little bit of oil on them. Could this be a bad ccv valve or valve seals? Anyone have a clue? I am getting codes P0171, and P0174, lean in bank 1 and bank 2. When I first start it up it also has a bit of a rough idle. PLEASE HELP!!!!
Quote:
Originally Posted by Supercourse View Post
... Check the underside of the oil filler cap for signs of water mixed with oil - the mayonnaise look.
That can be a clincher...
If it's white smoke, "Supercourse" may be on the right track: your head gasket may be leaking.
__________________

X3 w/6-speed & Sport Package:
A sports sedan disguised as an SUV...
Reply With Quote
  #4  
Old 04-22-2012, 12:27 PM
hale2thevictor hale2thevictor is offline
Registered User
Location: Ohio
 
Join Date: Mar 2012
Posts: 16
Mein Auto: 2005 BMW X3 2.5i
It's a bluish white smoke and I am getting ticking every once and a while. I thought that if the head gasket was bad it would leak oil on the out side of the engine.
Reply With Quote
  #5  
Old 04-22-2012, 12:50 PM
timfitz63's Avatar
timfitz63 timfitz63 is offline
MT = Doppler Shifting
Location: Lorena & San Antonio, TX
 
Join Date: Aug 2010
Posts: 860
Mein Auto: 2007 X3 (MT)
Quote:
Originally Posted by hale2thevictor View Post
It's a bluish white smoke and I am getting ticking every once and a while. I thought that if the head gasket was bad it would leak oil on the out side of the engine.
Not necessarily. The symptoms will depend on where the gasket has failed; it could leak fluids into the cylinder as well.

Bluish smoke is more indicative of oil leaking into the combustion chamber(s); the ticking noise may be related to a bad head gasket allowing the coolant and oil to intermix; or insufficient lubrication of the lifters for other reasons.
__________________

X3 w/6-speed & Sport Package:
A sports sedan disguised as an SUV...
Reply With Quote
  #6  
Old 04-23-2012, 09:18 PM
hale2thevictor hale2thevictor is offline
Registered User
Location: Ohio
 
Join Date: Mar 2012
Posts: 16
Mein Auto: 2005 BMW X3 2.5i
Now the smoke is gone but I'm getting a decompression sound when I turn the car off, any ideas? It sounds like a car with a turbo blow off valve when it happens. ????
Reply With Quote
  #7  
Old 04-24-2012, 07:22 AM
timfitz63's Avatar
timfitz63 timfitz63 is offline
MT = Doppler Shifting
Location: Lorena & San Antonio, TX
 
Join Date: Aug 2010
Posts: 860
Mein Auto: 2007 X3 (MT)
Quote:
Originally Posted by hale2thevictor View Post
Now the smoke is gone but I'm getting a decompression sound when I turn the car off, any ideas? It sounds like a car with a turbo blow off valve when it happens. ????
Does it sound like this sound that "Supercourse" described...?

Quote:
Originally Posted by Supercourse View Post
... If it is the crankcase vent valve/oil separator gone bad, you should have got an audible indication a month or two back when shutting the X3 off.
Sort of like a fog horn...
If so, it's probably the CCV, like you'd originally suspected.
__________________

X3 w/6-speed & Sport Package:
A sports sedan disguised as an SUV...
Reply With Quote
  #8  
Old 06-09-2012, 07:40 AM
bluebee's Avatar
bluebee bluebee is offline
Seek to understand,^Value
Location: San Jose, California
 
Join Date: Mar 2008
Posts: 21,283
Mein Auto: 02 BMW 525i M54 auto 130K
Quote:
Originally Posted by timfitz63 View Post
it's probably the CCV, like you'd originally suspected.
I came here looking for how to test a clogged E39 CCV steel vent tube (integral with the oil dispstick guide tube).

Do you X3 guys have a similar setup as below?
__________________
Each repair should invariably add to our knowledge base by the process of inexorable incrementalism.
Your job, in return, is to read the suggested threads, where the best people will always add value to those threads, either by pictures or by descriptions, so the next person with the same problem stands on your shoulders.
See also: E39 Bestlinks & How to easily find what you need
Reply With Quote
Reply

Bookmarks

Tags
ccv valve, smoke on start up, valve stem seals


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 04:09 AM.


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