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 > 7 Series / 8 Series > 7 Series - E65 / E66 (2002 - 2008)

7 Series - E65 / E66 (2002 - 2008)
Discussion pertaining to the flagship BMW here.

Reply
 
Thread Tools Display Modes
  #1  
Old 01-12-2010, 03:37 AM
crkrental crkrental is offline
Registered User
Location: Romania
 
Join Date: Dec 2009
Posts: 12
Mein Auto: 760lia
Hi,
Does anyone know how to change the sparkplugs on a 2003 760li E66? Is it a challenge or not. Need some advice quick. Engine is misfiring.

Hi,
Has anyone ever chaged sparkplugs on a 2003 760li? Please give me some insight on this subject. It seems to be quite difficult to tackle this task for a good DIY Mechanic. Still searching for a owners manaul as well.

Last edited by M.Wong; 01-12-2010 at 08:46 AM.
Reply With Quote
Advertisement
  #2  
Old 01-12-2010, 10:25 AM
Keif Keif is offline
Master Tinkerer
Location: Houston, TX
 
Join Date: Mar 2008
Posts: 2,201
Mein Auto: 2007 Alpina B7
Read this. Also, about 2/3 of the way down the second page, there is a link to videos and pictures of mine showing how to get the difficult ones out. I realize you have a 760, but the procedure is generally the same. If you have any specific questions, post a picture and description of the issue (preferably on one of the existing spark threads so others having your same problem will have a central place to look).
__________________
 
Black 2007 Alpina B7
Tension strut bushings
 
White 2007 Alpina B7
Supercharger clutch/bearings, replaced exhaust valve/pulled head, sunroof seal, 6000K angel eyes
 
Black 2002 BMW 745Li (sold)
KW v3's, blue angel eyes, 8000K headlights & HID fogs, rebuilt alternator & mounting bracket gasket, sunroof seal, CCVs, plugs, sway bar bushings, timing & valve cover gaskets, valve stem seals, guibo joint, mechatronic sealing sleeve, trans fluid, sanded headlights...
Reply With Quote
  #3  
Old 01-12-2010, 12:32 PM
E92-Lighting's Avatar
E92-Lighting E92-Lighting is offline
info@e92-lighting.com
Location: Walnut CA
 
Join Date: Sep 2008
Posts: 4,572
Send a message via AIM to E92-Lighting Send a message via MSN to E92-Lighting Send a message via Yahoo to E92-Lighting Send a message via Skype™ to E92-Lighting
Mein Auto: 335i
i use a brand called Bosch, no issues and works great
__________________
Reply With Quote
  #4  
Old 11-11-2011, 04:52 PM
lawandorder39 lawandorder39 is offline
Registered User
Location: Florida
 
Join Date: May 2008
Posts: 62
Mein Auto: 540i 760li M109 Rm1500
Be careful

I have a 760li and a mont ago I changed my plugs. I didn't have the much needed shop repair manual. I removed the intake manifold and changed all the plugs. After putting it back together I cranked it up. On the idrive sreen emission related fault service engine soon. Engine running rough mis firing. I changed coils still ran rough. Then took to dealer told them of issues they asked if I changed the intake gasket when I removed intake. So they checked the gasket and said it was damaged. Dealer charged me $1200 to change gasket and car still running rough. Dealer was ready to keep trying to find issue but at this point to exspensive. My car is still not running smooth still misfires. Find a good foreign car shop, not the dealer. If u have fix it already please let me know what you did?
Reply With Quote
  #5  
Old 11-11-2011, 05:15 PM
II Kings 9:20's Avatar
II Kings 9:20 II Kings 9:20 is offline
Officially Welcomed to the 'Fest
Location: Buckeye Nation
 
Join Date: Sep 2011
Posts: 672
Mein Auto: 08 750Li, 11 MDX, 04 MDX
No clue, I hope someone has a solution. As a principal there are two things I don't do myself: Change timing belts and replace spark plugs on expensive German cars. It's not worth the potential problems and cheaper in the long run to bite the bullet and pay to have it done.
__________________

2008 750 Li Alpine White/Creme
The economy will get worse before it gets worse.
Reply With Quote
  #6  
Old 11-11-2011, 07:23 PM
HerbP HerbP is offline
Officially Welcomed to the 'Fest
Location: Georgia
 
Join Date: Jul 2009
Posts: 2,599
Mein Auto: 2005 645Ci & 2007 750Li
You will have to pull your intake, to get to the spark plugs. Unless you are very mechanically inclined, you might want to have someone else do this job. There are several threads here that I have read, with DIY problems that have become very expensive.

Do some reading at the link below. You can navigate around this website for more detailed info. This is the online BMW service manual.

http://tis.spaghetticoder.org/s/view.pl?1/08/40/40

Good Luck!
Reply With Quote
  #7  
Old 11-11-2011, 11:20 PM
lawandorder39 lawandorder39 is offline
Registered User
Location: Florida
 
Join Date: May 2008
Posts: 62
Mein Auto: 540i 760li M109 Rm1500
Appreciation

You sir have made my day for sure. This online manual is a wonderful help. I have looked high and low for a repair manual with no sucess until now.
Thanks a million. I have changed my plugs in my 760li put it back together and it started running rough. Emission related fault service engine soon came on idrive computer screen, check engine light came on also. Took to dealer after I tried to figure out myself. Dealer asked if I had changed the gasket under the intake manifold, which I did'nt so they inspected it and said the gasket had a rip in it. $1200 later BMW dealer they supose to have changed gasket and car still running the same. They said cylinder #2 was not firing so they switched it with cylinder #12 and the mis fire stayed in cylinder #2. So it's not the coil or plugs. Can you help
Reply With Quote
  #8  
Old 11-12-2011, 09:44 AM
roadfrog's Avatar
roadfrog roadfrog is offline
Officially Welcomed to the 'Fest
Location: Chilliwack, BC Canada
 
Join Date: Oct 2009
Posts: 1,092
Mein Auto: 2003 745i
Why the heck are you guys removing the intake manifold to change the plugs????!!!!!! This is a simple 1 hr job to replace plugs.
Reply With Quote
  #9  
Old 11-12-2011, 10:14 AM
II Kings 9:20's Avatar
II Kings 9:20 II Kings 9:20 is offline
Officially Welcomed to the 'Fest
Location: Buckeye Nation
 
Join Date: Sep 2011
Posts: 672
Mein Auto: 08 750Li, 11 MDX, 04 MDX
Quote:
Originally Posted by roadfrog View Post
Why the heck are you guys removing the intake manifold to change the plugs????!!!!!! This is a simple 1 hr job to replace plugs.
760 not 750, AFAIK you can't get to the plugs without removing the intake. Like the prev gen A8 requiring removing the entire front clip to get to the timing belt. It's called "superior German engineering". Let GM or Ford try that. I do recall the 80s GM B Body (Celebrity) required loosening the motor mounts and tipping the engine forward to get to the plugs in the firewall side of the engine.
__________________

2008 750 Li Alpine White/Creme
The economy will get worse before it gets worse.
Reply With Quote
  #10  
Old 11-12-2011, 02:51 PM
roadfrog's Avatar
roadfrog roadfrog is offline
Officially Welcomed to the 'Fest
Location: Chilliwack, BC Canada
 
Join Date: Oct 2009
Posts: 1,092
Mein Auto: 2003 745i
Quote:
760 not 750
Oops....good save Kings. I missed that.

Quote:
the 80s GM B Body (Celebrity) required loosening the motor mounts and tipping the engine forward to get to the plugs in the firewall side of the engine.
I also remember my wifes '86 Ford Taurus with the same problem. Horrendous to change the plugs on.
Reply With Quote
  #11  
Old 11-12-2011, 05:18 PM
HerbP HerbP is offline
Officially Welcomed to the 'Fest
Location: Georgia
 
Join Date: Jul 2009
Posts: 2,599
Mein Auto: 2005 645Ci & 2007 750Li
Quote:
Originally Posted by lawandorder39 View Post
You sir have made my day for sure. This online manual is a wonderful help. I have looked high and low for a repair manual with no sucess until now.
Thanks a million. I have changed my plugs in my 760li put it back together and it started running rough. Emission related fault service engine soon came on idrive computer screen, check engine light came on also. Took to dealer after I tried to figure out myself. Dealer asked if I had changed the gasket under the intake manifold, which I did'nt so they inspected it and said the gasket had a rip in it. $1200 later BMW dealer they supose to have changed gasket and car still running the same. They said cylinder #2 was not firing so they switched it with cylinder #12 and the mis fire stayed in cylinder #2. So it's not the coil or plugs. Can you help
A misfire could be caused by spark or fuel. I wonder if your #2 injector wiring plug has a problem? Could it be lose, or have a broken wire. Having DIS or INPA is a must for working on these cars!

Good Luck!
Reply With Quote
  #12  
Old 11-12-2011, 07:00 PM
II Kings 9:20's Avatar
II Kings 9:20 II Kings 9:20 is offline
Officially Welcomed to the 'Fest
Location: Buckeye Nation
 
Join Date: Sep 2011
Posts: 672
Mein Auto: 08 750Li, 11 MDX, 04 MDX
Quote:
Originally Posted by roadfrog View Post
Oops....good save Kings. I missed that.

I also remember my wifes '86 Ford Taurus with the same problem. Horrendous to change the plugs on.
No plugs on a Diesel - Remember the Lincoln LSC that used the BMW 524TD Diesel engine in the early-mid 80s? I had a Citroen and Peugeot D, both great cars. French Diesels are as good as German diesels IMO.
__________________

2008 750 Li Alpine White/Creme
The economy will get worse before it gets worse.
Reply With Quote
  #13  
Old 11-19-2011, 09:12 PM
lawandorder39 lawandorder39 is offline
Registered User
Location: Florida
 
Join Date: May 2008
Posts: 62
Mein Auto: 540i 760li M109 Rm1500
Quote:
Originally Posted by HerbP View Post
A misfire could be caused by spark or fuel. I wonder if your #2 injector wiring plug has a problem? Could it be lose, or have a broken wire. Having DIS or INPA is a must for working on these cars!

Good Luck!
What is a INPA and where can I get one.
Reply With Quote
  #14  
Old 11-19-2011, 09:57 PM
collins912's Avatar
collins912 collins912 is offline
Officially Welcomed to the 'Fest
Location: Virginia (Hampton Roads)
 
Join Date: Jun 2009
Posts: 1,110
Mein Auto: 745i
I had the same issue my first time. Go back thoroughly and make sure everything is seated correctly with no crimped wires or anything. Clean out connectors on fuel injector rails and connections for coil packs. Hope that helps you out.
__________________
Reply With Quote
  #15  
Old 11-20-2011, 03:07 PM
Rookie2008's Avatar
Rookie2008 Rookie2008 is offline
Officially Welcomed to the 'Fest
Location: NYC 4 Eva! Current California
 
Join Date: Feb 2011
Posts: 2,199
Mein Auto: BMW 745LI/ F02
Ok so I found a mobile mechanic that says he will replace both L+R VCG, spark plugs, Oil filter, micro filter, air filter and hood shocks for $675.00. I just have to buy the parts. What do you guys think? I did a test and just asked hims some random questions about the 7 series and he was able to answer them correctly so that lead me to believe that YES he has worked on these cars before. But I need you guys honest opinion as I am not able to DIY. Thanks. So Do you have to remove the intake to get to the plugs or NO? Some are saying yes and No which one is it? Any particular VCG Gasket brand?
__________________
Sittin on 24's now with floating center caps
Reply With Quote
  #16  
Old 11-20-2011, 07:19 PM
02x745Li 02x745Li is offline
Officially Welcomed to the 'Fest
Location: Benz world
 
Join Date: Oct 2011
Posts: 117
Mein Auto: E63 TT S-model
Quote:
Originally Posted by Rookie2008 View Post
Ok so I found a mobile mechanic that says he will replace both L+R VCG, spark plugs, Oil filter, micro filter, air filter and hood shocks for $675.00. I just have to buy the parts. What do you guys think? I did a test and just asked hims some random questions about the 7 series and he was able to answer them correctly so that lead me to believe that YES he has worked on these cars before. But I need you guys honest opinion as I am not able to DIY. Thanks. So Do you have to remove the intake to get to the plugs or NO? Some are saying yes and No which one is it? Any particular VCG Gasket brand?
micro filter aka cabin air filters are the easiest, you can yourself.
Reply With Quote
  #17  
Old 11-20-2011, 07:25 PM
Rookie2008's Avatar
Rookie2008 Rookie2008 is offline
Officially Welcomed to the 'Fest
Location: NYC 4 Eva! Current California
 
Join Date: Feb 2011
Posts: 2,199
Mein Auto: BMW 745LI/ F02
Thanks
__________________
Sittin on 24's now with floating center caps
Reply With Quote
  #18  
Old 10-04-2013, 01:54 PM
chamboko chamboko is offline
sjambok
Location: Ohio
 
Join Date: Apr 2013
Posts: 25
Mein Auto: 2006 BMW 750 LI
I have an 06 750 li and i am trying to replace my spark plugs. I removed the covers and got to the coils, after removing the top clip on the coil, i pulled the power connector off. How do i pull out the rest of the coil out so i can replace the plug?
Reply With Quote
  #19  
Old 10-07-2013, 03:03 PM
Khabar Khabar is offline
Officially Welcomed to the 'Fest
Location: Virginia
 
Join Date: Mar 2009
Posts: 574
Mein Auto: 745i 2005
while turning it left and right start pulling it out. You will meet some resistance,do not use force just play with it and it will come out.
Reply With Quote
Reply

Bookmarks


Forum Navigation
Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 7 Series / 8 Series > 7 Series - E65 / E66 (2002 - 2008)
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 06:38 AM.


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