E39 M5 is went weird - BMW M5 Forum and M6 Forums
E39 M5 and E52 Z8 Discussion 1998-2003 Advertiser's Forum

 12Likes
Reply
 
LinkBack Thread Tools Rate Thread Display Modes
post #1 of 53 Old 8th April 2017, 04:57 PM Thread Starter
NordmanMg
Member, Sport: Off DSC: On (>50 posts)
 
NordmanMg's Avatar
 
Join Date: Nov 2016
Location: Colorado
Posts: 59
Thanks: 11
Thanked 4 Times in 4 Posts
E39 M5 is went weird

Hi guys, I bought this M5 5 months ago,
And it was driving fine, then like two months ago i got SES light, thermostat.
Last Wednesday I replaced my thermostat with new one from FCP with all related O-rings (7)

, it started leaking next day, took it back apart and found one o-ring got mushed and snapped in half, not a big deal, replaced it with new one, I ordered extra since I new it is common, but this time I took intake plenum and everything under and went and replaced O-rings on heat exchanger too,
Sure I got coolant down to the crank so I changed oil as well, now (I don't have any milkshake under oil filling cap) yesterday, next morning after I put everything back I started it up, it was sitting in a garage with engine running for 10 minutes, and then I went to work, as soon as I pulled out of my driveway I noticed very heavy cloud behind me, it was damn heavy, well .
Came to work, opened up hood and noticed that there is oil dripping from MAFs (between MAF and filter) took plenum back apart since I thought I might forgot something,
Everything was fine, put it back together and it was fine that evening (yesterday)
This morning it did the same thing and it died twice on cross lights until oil temp reached 1/3
What the hell is going on?

It never had smoke in 2000 miles I drove in it since I bought it

Last edited by NordmanMg; 8th April 2017 at 05:06 PM.
NordmanMg is offline  
Sponsored Links
Advertisement
 
post #2 of 53 Old 8th April 2017, 05:17 PM Thread Starter
NordmanMg
Member, Sport: Off DSC: On (>50 posts)
 
NordmanMg's Avatar
 
Join Date: Nov 2016
Location: Colorado
Posts: 59
Thanks: 11
Thanked 4 Times in 4 Posts
I also replaced VCG's since they were leaking too, but that I did a wile ago, before thermostat threw SES code

NordmanMg is offline  
post #3 of 53 Old 8th April 2017, 05:20 PM
xrviz
m5board.comoholic (>1000 posts)
 
xrviz's Avatar
 
Join Date: Nov 2014
Location: Oklahoma
Posts: 1,598
Thanks: 221
Thanked 154 Times in 149 Posts
Thinking maybe one of your oil separator drain hoses may be getting pinched after working in that area.
xrviz is offline  
 
post #4 of 53 Old 8th April 2017, 05:35 PM Thread Starter
NordmanMg
Member, Sport: Off DSC: On (>50 posts)
 
NordmanMg's Avatar
 
Join Date: Nov 2016
Location: Colorado
Posts: 59
Thanks: 11
Thanked 4 Times in 4 Posts
Quote:
Originally Posted by xrviz View Post
Thinking maybe one of your oil separator drain hoses may be getting pinched after working in that area.
They look fine except they are so soft when when engine is hot (normal running temp)


NordmanMg is offline  
post #5 of 53 Old 8th April 2017, 06:07 PM
xrviz
m5board.comoholic (>1000 posts)
 
xrviz's Avatar
 
Join Date: Nov 2014
Location: Oklahoma
Posts: 1,598
Thanks: 221
Thanked 154 Times in 149 Posts
The issue would be the drain hoses, #9 and #10 in the RealOem diagram.
For more info search "oil in plenum" threads.
xrviz is offline  
post #6 of 53 Old 8th April 2017, 07:15 PM Thread Starter
NordmanMg
Member, Sport: Off DSC: On (>50 posts)
 
NordmanMg's Avatar
 
Join Date: Nov 2016
Location: Colorado
Posts: 59
Thanks: 11
Thanked 4 Times in 4 Posts
NordmanMg is offline  
post #7 of 53 Old 9th April 2017, 05:52 AM
Sailor24
M5 Expert (>4000)
 
Sailor24's Avatar
 
Join Date: Oct 2010
Location: Cobourg Ont
Age: 55
Posts: 8,591
Thanks: 960
Thanked 1,783 Times in 1,484 Posts
This issue is usually the vanos. One of the output solenoids has stuck partly open on bank 2 so the oil drain system gets overwhelmed and instead of the oil going to the sump it floods the plenum. Then goes where you are seeing it. I am short of time now but do a search. There are some videos of this and there is something else that causes it. None the less of what is causing it, the repair is not to hard. First thing you need to do is(hope you have a code reader and a way to clear codes this test will cause MAF codes) pull the top of the plenum unplug the two electric plugs for the MAFs and start the car. You will see oil flowing into the plenum through one of the drain tubes. If you can confirm that by then I will have time and we can go through the steps.
Sailor24 is online now  
post #8 of 53 Old 9th April 2017, 10:02 AM
BreakMyWindow
Fellow Member (>400)
 
BreakMyWindow's Avatar
 
Join Date: May 2013
Location: New Zealand
Posts: 426
Thanks: 17
Thanked 35 Times in 27 Posts
The oil pressure regulator on bank 2 is the something else. Entire vanos unit removed to replace or clean it.
BreakMyWindow is online now  
post #9 of 53 Old 9th April 2017, 11:49 PM Thread Starter
NordmanMg
Member, Sport: Off DSC: On (>50 posts)
 
NordmanMg's Avatar
 
Join Date: Nov 2016
Location: Colorado
Posts: 59
Thanks: 11
Thanked 4 Times in 4 Posts
Quote:
Originally Posted by Sailor24 View Post
This issue is usually the vanos. One of the output solenoids has stuck partly open on bank 2 so the oil drain system gets overwhelmed and instead of the oil going to the sump it floods the plenum. Then goes where you are seeing it. I am short of time now but do a search. There are some videos of this and there is something else that causes it. None the less of what is causing it, the repair is not to hard. First thing you need to do is(hope you have a code reader and a way to clear codes this test will cause MAF codes) pull the top of the plenum unplug the two electric plugs for the MAFs and start the car. You will see oil flowing into the plenum through one of the drain tubes. If you can confirm that by then I will have time and we can go through the steps.
It does that only on cold starts in a morning, I can do that test probably on Tuesday, will drive it to work on Monday and will live it there overnight and will do that test in a morning
NordmanMg is offline  
post #10 of 53 Old 9th April 2017, 11:53 PM Thread Starter
NordmanMg
Member, Sport: Off DSC: On (>50 posts)
 
NordmanMg's Avatar
 
Join Date: Nov 2016
Location: Colorado
Posts: 59
Thanks: 11
Thanked 4 Times in 4 Posts
Quote:
Originally Posted by BreakMyWindow View Post
The oil pressure regulator on bank 2 is the something else. Entire vanos unit removed to replace or clean it.
I actually got cam position code, it appeared after thermostat replacement.
Anyway, should I order repair kit for vanoses ?
I also ordered new CCV set and 4 new cam position sensors, my drain hoses are very soft and when you squeeze them they got mushed for 15-20 seconds before they came back to normal shape
NordmanMg is offline  
Reply

Bookmarks

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the BMW M5 Forum and M6 Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes Rate This Thread
Linear Mode Linear Mode
Rate This Thread:



Similar Threads
Thread Thread Starter Forum Replies Last Post
E39 M5 Engine cutout and low power, weird sounds... Decepticon13 E39 M5 and E52 Z8 Discussion 13 22nd September 2014 07:42 AM
Please Help - E39 540 - weird sound in engine bimmersf E39 5 series Forum 2 8th July 2014 10:41 PM
Weird e39 noise twiggym5 E39 M5 and E52 Z8 Discussion 5 28th December 2012 02:24 PM
Something weird!!! AvusAndy E60 M5 and E61 M5 Touring Discussion 7 15th April 2009 02:31 AM

Posting Rules  
You may post new threads
You may 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
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome