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 > 5 Series > E60 (2004 - 2010)

E60 (2004 - 2010)
BMW 5-Series (E60 chassis) was first seen in the Unites States in the fall of 2003 with a 2004 Model Year designation. The E60 is now available as a 528i, 528xi, 535i, 535xi, 550i and a 535xi sports wagon! -- View the E60 Wiki

Reply
 
Thread Tools Display Modes
  #1  
Old 03-10-2012, 06:09 AM
Gerry550 Gerry550 is offline
Registered User
Location: South Africa
 
Join Date: Aug 2011
Posts: 34
Mein Auto: 2006 550I M Sport
Easy way of opening exhaust valve on a 550i

The solenoid is behind the cover of the let tail light. Very easy to get to! All you need is a large syringe and a hose clamp used in Aquarians to regulate air flow on the air pumps. You pull the side pipe off the solenoid push it onto the syringe and draw it back, you will hear the valve open, put the clamp on the hose, push it back on the solenoid. Job done! Check the exhaust valve to make sure it is fully open. That's it. I am sure this can be done to any BMW with a valve on the exhaust.
Reply With Quote
Ads by Google
  #2  
Old 03-10-2012, 06:48 AM
mfrasca mfrasca is offline
Registered User
Location: Boston
 
Join Date: Jan 2010
Posts: 45
Mein Auto: 550i
What do you gain from doing this?
Reply With Quote
  #3  
Old 03-10-2012, 08:05 AM
sockmonkey sockmonkey is offline
Tail out!
Location: Germany
 
Join Date: Feb 2012
Posts: 365
Mein Auto: BMW
Quote:
Originally Posted by mfrasca View Post
What do you gain from doing this?
I wouldn't recommend it on an I6- I've had a master tech tell me that it serves a warm-up and backpressure function (at lower RPMs) on them. Doesn't matter on a V8, so if you want to safety wire it open or use this nifty vacuum technique, have at it. It will make your V8 car actually sound like a V8 at idle.
Reply With Quote
  #4  
Old 03-10-2012, 10:04 AM
TRS550 TRS550 is offline
Officially Welcomed to the 'Fest
Location: Ohio
 
Join Date: Jan 2010
Posts: 1,353
Mein Auto: 2007 550i
Quote:
Originally Posted by mfrasca View Post
What do you gain from doing this?
Noise.
Reply With Quote
  #5  
Old 03-10-2012, 11:40 PM
Gerry550 Gerry550 is offline
Registered User
Location: South Africa
 
Join Date: Aug 2011
Posts: 34
Mein Auto: 2006 550I M Sport
It is a V8..... and yes that is what I am going for....just a little more noise. I have looked at 650 exhausts and they seem to have no valves on there two boxes? The two cars share the same engine so, I can only conclude the valve only service to keep the car quite at low speed and idle? I tried a new rear exhaust, but that was just too loud. The seems just right!
Reply With Quote
  #6  
Old 03-11-2012, 07:53 AM
sockmonkey sockmonkey is offline
Tail out!
Location: Germany
 
Join Date: Feb 2012
Posts: 365
Mein Auto: BMW
Quote:
Originally Posted by Gerry550 View Post
It is a V8..... and yes that is what I am going for....just a little more noise. I have looked at 650 exhausts and they seem to have no valves on there two boxes? The two cars share the same engine so, I can only conclude the valve only service to keep the car quite at low speed and idle? I tried a new rear exhaust, but that was just too loud. The seems just right!
On the V8 it's definitely a rumble-reducer at idle- beware, though- make sure that it actually opens when you goose the throttle well- Mine was stuck when I bought the car- the dealer ended up replacing some relay and the actual solinoid before I bought it.
Reply With Quote
  #7  
Old 03-11-2012, 08:07 AM
Campfamily's Avatar
Campfamily Campfamily is offline
Officially Welcomed to the 'Fest
Location: Southern California
 
Join Date: Sep 2010
Posts: 1,230
Mein Auto: 2008 550i
Quote:
Originally Posted by sockmonkey View Post
On the V8 it's definitely a rumble-reducer at idle- beware, though- make sure that it actually opens when you goose the throttle well- Mine was stuck when I bought the car- the dealer ended up replacing some relay and the actual solinoid before I bought it.
How do you check for this?
__________________
2008 550i, Carbon Black, Black Dakota, 6MT, Sport Package, Nav, Logic7, Comfort Access, Cold Weather, Folding Rear Seats, iPod
Reply With Quote
  #8  
Old 03-11-2012, 08:44 AM
sockmonkey sockmonkey is offline
Tail out!
Location: Germany
 
Join Date: Feb 2012
Posts: 365
Mein Auto: BMW
I'm not certain of the exact throttle / load percentage required, but it should have some movement revved smoothly to 3/4 throttle at idle, and less in drive with a load. Mine just never moved (I could tell by the soot on one pipe but not the other, and condensation on one pipe after a spirited drive, but not the other).
Reply With Quote
  #9  
Old 03-11-2012, 09:03 AM
Gerry550 Gerry550 is offline
Registered User
Location: South Africa
 
Join Date: Aug 2011
Posts: 34
Mein Auto: 2006 550I M Sport
I have a nice "rumble" now at idle and at low speed.... I think this is the way this car should have been straight from the factory.... one of the reasons you buy a V8 is for the "sound", God knows its not for the fuel economy!
Reply With Quote
  #10  
Old 03-11-2012, 11:27 AM
sockmonkey sockmonkey is offline
Tail out!
Location: Germany
 
Join Date: Feb 2012
Posts: 365
Mein Auto: BMW
Quote:
Originally Posted by Gerry550 View Post
I have a nice "rumble" now at idle and at low speed.... I think this is the way this car should have been straight from the factory.... one of the reasons you buy a V8 is for the "sound", God knows its not for the fuel economy!
Did you try any physical restraints on the arm, e.g. safety wire or hangar stuff? My only concern would be that the vacuum leaks out past the clamp eventually...
Reply With Quote
  #11  
Old 03-11-2012, 01:13 PM
Hogie's Avatar
Hogie Hogie is offline
It's 5 O'clock Somwhere
Location: Liv'n where I am
 
Join Date: Dec 2006
Posts: 572
Mein Auto: 330i, Z3 2.8L, 545i
ahh this is a complicated process. All you need to do is bypass the vacuum valve in the trunk as the poster indicates where it is.

The vacuum valve turns on above 3,000 RPM ( electrically). The vacuum is always there from the vacuum line. This means if you disconnect both vacuum lines, one from engine, 1 to exhaust valve, you have a constant vacuum to keep the exhaust muffler valve open.


As long as you have no vacuum leaks this keeps the secondary valve and muffler seconf pipe open, giving you a more rumble at idle and free flowing exhaust. I have picked up .5 mpg by doing.
Reply With Quote
  #12  
Old 03-11-2012, 01:43 PM
Campfamily's Avatar
Campfamily Campfamily is offline
Officially Welcomed to the 'Fest
Location: Southern California
 
Join Date: Sep 2010
Posts: 1,230
Mein Auto: 2008 550i
Does a later model 550 with the sport package have this valve? I was just under my car looking at the muffler in the back, and I don't see anything but a single pipe splitting into two, entering two separate mufflers, then exiting into individual tailpipes. I don't see any kind of valve mechanism under there. It also seems as though both tailpipes are exhausting at idle. I believe that the sport package included a different exhaust on the 550 in 2008. Could it be that this feature doesn't exist with the sport package?

Keith
__________________
2008 550i, Carbon Black, Black Dakota, 6MT, Sport Package, Nav, Logic7, Comfort Access, Cold Weather, Folding Rear Seats, iPod
Reply With Quote
  #13  
Old 03-11-2012, 02:57 PM
sockmonkey sockmonkey is offline
Tail out!
Location: Germany
 
Join Date: Feb 2012
Posts: 365
Mein Auto: BMW
Quote:
Originally Posted by Hogie View Post
ahh this is a complicated process. All you need to do is bypass the vacuum valve in the trunk as the poster indicates where it is.

The vacuum valve turns on above 3,000 RPM ( electrically). The vacuum is always there from the vacuum line. This means if you disconnect both vacuum lines, one from engine, 1 to exhaust valve, you have a constant vacuum to keep the exhaust muffler valve open.


As long as you have no vacuum leaks this keeps the secondary valve and muffler seconf pipe open, giving you a more rumble at idle and free flowing exhaust. I have picked up .5 mpg by doing.
Nice- I'll grab a connector and give it a try.
Reply With Quote
  #14  
Old 03-11-2012, 11:06 PM
Gerry550 Gerry550 is offline
Registered User
Location: South Africa
 
Join Date: Aug 2011
Posts: 34
Mein Auto: 2006 550I M Sport
Thumbs up

Quote:
Originally Posted by Hogie View Post
ahh this is a complicated process. All you need to do is bypass the vacuum valve in the trunk as the poster indicates where it is.

The vacuum valve turns on above 3,000 RPM ( electrically). The vacuum is always there from the vacuum line. This means if you disconnect both vacuum lines, one from engine, 1 to exhaust valve, you have a constant vacuum to keep the exhaust muffler valve open.


As long as you have no vacuum leaks this keeps the secondary valve and muffler seconf pipe open, giving you a more rumble at idle and free flowing exhaust. I have picked up .5 mpg by doing.
This sounds good! have you checked the valve at idle? was it open?
Reply With Quote
  #15  
Old 03-12-2012, 09:40 AM
jsimon7777 jsimon7777 is offline
Giant Robot
Location: Fremont, CA
 
Join Date: Mar 2008
Posts: 604
Mein Auto: Scion FR-S
Any pictures?
__________________
2013 Scion FR-S
2007 550i Sport - GONE
2008 528i - GONE
"What are you going to replace your BMW with?"
"Another BMW, with a bigger engine!"
Reply With Quote
  #16  
Old 03-12-2012, 07:19 PM
Hogie's Avatar
Hogie Hogie is offline
It's 5 O'clock Somwhere
Location: Liv'n where I am
 
Join Date: Dec 2006
Posts: 572
Mein Auto: 330i, Z3 2.8L, 545i
Quote:
Originally Posted by Gerry550 View Post
This sounds good! have you checked the valve at idle? was it open?
Yes - Valve opens on vehicle start and stays open.
Reply With Quote
  #17  
Old 03-12-2012, 08:14 PM
ArtchredTTU ArtchredTTU is offline
Officially Welcomed to the 'Fest
Location: texas
 
Join Date: Dec 2010
Posts: 521
Mein Auto: 550i
Quote:
Originally Posted by jsimon7777 View Post
Any pictures?

this^
Reply With Quote
  #18  
Old 03-12-2012, 09:12 PM
jsimon7777 jsimon7777 is offline
Giant Robot
Location: Fremont, CA
 
Join Date: Mar 2008
Posts: 604
Mein Auto: Scion FR-S
What?
__________________
2013 Scion FR-S
2007 550i Sport - GONE
2008 528i - GONE
"What are you going to replace your BMW with?"
"Another BMW, with a bigger engine!"
Reply With Quote
  #19  
Old 03-12-2012, 11:07 PM
Gerry550 Gerry550 is offline
Registered User
Location: South Africa
 
Join Date: Aug 2011
Posts: 34
Mein Auto: 2006 550I M Sport
Thank! going to try this.
Reply With Quote
  #20  
Old 03-25-2012, 05:25 PM
ArtchredTTU ArtchredTTU is offline
Officially Welcomed to the 'Fest
Location: texas
 
Join Date: Dec 2010
Posts: 521
Mein Auto: 550i
Where the heck is the solenoid? I don't see it
Reply With Quote
  #21  
Old 03-25-2012, 06:58 PM
Arctic-Rodz Arctic-Rodz is offline
Officially Welcomed to the 'Fest
Location: RGV, TX
 
Join Date: Mar 2012
Posts: 164
Mein Auto: 2004 Z71 Tahoe, 97 Z28
Quote:
Originally Posted by Campfamily View Post
Does a later model 550 with the sport package have this valve? I was just under my car looking at the muffler in the back, and I don't see anything but a single pipe splitting into two, entering two separate mufflers, then exiting into individual tailpipes. I don't see any kind of valve mechanism under there. It also seems as though both tailpipes are exhausting at idle. I believe that the sport package included a different exhaust on the 550 in 2008. Could it be that this feature doesn't exist with the sport package?

Keith
x2 on this.. i have an 08 w/ M-sport package. I havent looked into the exhaust but it does have a nice purr when you turn it on and it goes quiet right after.

Would like to keep the purr going
Reply With Quote
  #22  
Old 03-25-2012, 07:03 PM
ArtchredTTU ArtchredTTU is offline
Officially Welcomed to the 'Fest
Location: texas
 
Join Date: Dec 2010
Posts: 521
Mein Auto: 550i
Quote:
Originally Posted by Arctic-Rodz View Post
x2 on this.. i have an 08 w/ M-sport package. I havent looked into the exhaust but it does have a nice purr when you turn it on and it goes quiet right after.

Would like to keep the purr going
Exactly my thought! haha you beat me to it.
Reply With Quote
  #23  
Old 03-25-2012, 11:33 PM
Gerry550 Gerry550 is offline
Registered User
Location: South Africa
 
Join Date: Aug 2011
Posts: 34
Mein Auto: 2006 550I M Sport
I joined the two pipes, and it work great! Valve opens when the car is started and stays open. You can hear the car at low speed now. I have not notices any bad side effects of doing this at all amd mine has been this way for three weeks now. Fuel consumtion is still the same, so all looks well.
Reply With Quote
  #24  
Old 03-26-2012, 07:27 AM
Kalil147 Kalil147 is offline
Officially Welcomed to the 'Fest
Location: Miami
 
Join Date: Aug 2011
Posts: 160
Mein Auto: BMW 545i
Would this work on a 545i?
Reply With Quote
  #25  
Old 03-26-2012, 08:49 AM
Gerry550 Gerry550 is offline
Registered User
Location: South Africa
 
Join Date: Aug 2011
Posts: 34
Mein Auto: 2006 550I M Sport
Thumbs up

I can not see why not.... look for the solinoid in the boot join the pipes and see.... best tip I have found on here so far
Reply With Quote
Reply

Bookmarks


Forum Navigation
Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > E60 (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 05:37 AM.


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