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 08-12-2008, 08:47 PM
Judd944 Judd944 is offline
Officially Welcomed to the 'Fest
Location: Lexington, KY
 
Join Date: Oct 2004
Posts: 529
Mein Auto: 03 745i Sport / 01 986S
Spark plug DIY at 100k 745i

Changed the oil and did the spark plugs last weekend. Did not find a good writeup so I made one. I have a work document with photos. can I attach that?


Spark Plug change 2003 BMW 745i (E65)

I changed the oil first but taking the car off the ramps will make for better access. All the work is done from the top.

Tools needed:
Torx T30
Torx T25
Spark plug socket
10mm extended socket
2 3/8 drive extensions
Tape (trust me on this)
Wrench
Torque Wrench

Parts Needed:
8 new NGK spark plugs ($28 each at dealer, or under $2 each at Advance Auto)



Procedure:
Using the T30 torx screwdriver remove the four screws that hold the plastic engine cover to the top of the engine.


I also removed the plastic guards above the radiator fan for better access (T25)



I took this opportunity to vacuum the top of the engine and then used some compressed air to clean the dust and dirt off the engine. (do not do this with the spark plugs out!!!)

The next part that comes off is the “BMW” side covers. They will just pull straight out. They are held in by friction. No tools are needed for removal.

Now you will be looking at the coils on the spark plugs.




The coils should be removed one at a time. I started at the front and worked my way back to the firewall.
Below is a coil that has been removed.


Some of these are difficult to remove and will require some serious pulling. Rotate them back and forth to loosen the coils. Do not use any tools to pry the coils out. You do not want to break the harness clip.

The rear plugs (closest to the firewall) are a serious PITA. I needed to tape a few shorter 3/8 extensions together as I put them into the spark plug hole. Removing them I needed to cut the tape and remove each piece one at a time.


Below is the “tool” I made



Be sure to apply anti-seize on the threads before installing the new sparkplugs.
Torque the new sparkplugs in to 19 ft-lbs (or whatever the plugs state)

Push on the coil and be sure it “pops” back on. It will kind of click when it is on all the way. Clip on the harness and you are back in business.

Be sure to start the car before putting the covers back on the engine and take this time to reset the spark plug counter to 100k.
• Put the key in, do not put your foot on the brake
• Hit the start button
• Hold down the trip reset for 10 sec.
• Page through until you get to spark plugs and reset the value

My wife noticed MPG went from 24mpg to 25.6 mpg. Looks like the spark plugs were due! I changed them at 95k.
__________________
--------------------------------------------------
2003 745i Sport Sterling Gray/Black
2001 986S Seal Gray / Boxster Red

Past:
98 540i Sport
6 944's
Reply With Quote
Advertisement
  #2  
Old 08-13-2008, 09:05 AM
Din's Avatar
Din Din is offline
Officially Welcomed to the 'Fest
Location: Texas
 
Join Date: Feb 2006
Posts: 1,086
Mein Auto: 750LI M3 Mustang Tundra
good deal , usaid u have pics?
Reply With Quote
  #3  
Old 10-21-2008, 08:38 PM
wepasi wepasi is offline
Registered User
Location: indiana
 
Join Date: Sep 2008
Posts: 4
Mein Auto: bmw 745i
big up the intel...will do mine this weekend ..thanx...
where are the pics?
Reply With Quote
  #4  
Old 10-22-2008, 08:52 AM
Judd944 Judd944 is offline
Officially Welcomed to the 'Fest
Location: Lexington, KY
 
Join Date: Oct 2004
Posts: 529
Mein Auto: 03 745i Sport / 01 986S
I have them on my computer at home. I will work on getting them up for you guys.
__________________
--------------------------------------------------
2003 745i Sport Sterling Gray/Black
2001 986S Seal Gray / Boxster Red

Past:
98 540i Sport
6 944's
Reply With Quote
  #5  
Old 10-22-2008, 03:03 PM
starioncorrado starioncorrado is offline
asc-abs sensors rock!!!!
Location: houston tx
 
Join Date: Jan 2008
Posts: 413
Send a message via Yahoo to starioncorrado
Mein Auto: 2002 745i
Thanks fro this post, I did it with in 45 minutes. It is as easy as 1,2,3 !!!!
__________________
Reply With Quote
  #6  
Old 10-22-2008, 03:42 PM
STRTWYZ's Avatar
STRTWYZ STRTWYZ is offline
Officially Welcomed to the 'Fest
Location: Hotzona
 
Join Date: Jul 2007
Posts: 907
Mein Auto: 4 Chevy's and a Bimmer
Nice write up Judd! Pics would be really nice since I'm 'toopid' and I'm better at reading pictures. ie: pron.

Lastly. What did you gap your plugs at?
__________________
Reply With Quote
  #7  
Old 06-25-2009, 05:43 AM
dfauerbach's Avatar
dfauerbach dfauerbach is offline
Officially Welcomed to the 'Fest
Location: North NJ
 
Join Date: Dec 2007
Posts: 850
Mein Auto: 2004 745i
Quote:
Originally Posted by starioncorrado View Post
Thanks fro this post, I did it with in 45 minutes. It is as easy as 1,2,3 !!!!
you did it in 45 minutes and it took him 3 hours and was a 6 on a scale of 1-10? Was the 3 hour job a 760?
__________________


2004 745i
2001 X5
2006 FXSTBi Night Train FOR SALE $15,850.00 over 30k Invested 4k miles
2001 Modified Triumph Daytona 955i SOLD
2005 SRT10 Ram
Reply With Quote
  #8  
Old 06-25-2009, 08:19 PM
NastyNoble3K NastyNoble3K is offline
Registered User
Location: Omaha, NE
 
Join Date: Feb 2009
Posts: 75
Mein Auto: 2005 745Li
Differences on a 2005?

There may be some differences in the engine bay between model years but I doubt it. I like to take my time to work on first time projects and allotted 3hrs. I probably could have knocked it out on 2hrs or so if I rushed but those front four coils were a ******. Now, I could do it in 45 easy...and knock the rating down to a 3.

I advise everyone to give this DIY a shot. It is definitely worth it!

MEM

p.s. This was a horrible week in the entertainment world. RIP to Ed, Farrah, and MJ!
__________________

Nastynoble3k
Reply With Quote
  #9  
Old 10-23-2008, 10:05 AM
Judd944 Judd944 is offline
Officially Welcomed to the 'Fest
Location: Lexington, KY
 
Join Date: Oct 2004
Posts: 529
Mein Auto: 03 745i Sport / 01 986S
doh, forgot the pics last night. I did not adjust the gap on the spark plugs.
__________________
--------------------------------------------------
2003 745i Sport Sterling Gray/Black
2001 986S Seal Gray / Boxster Red

Past:
98 540i Sport
6 944's
Reply With Quote
  #10  
Old 10-23-2008, 07:50 PM
Judd944 Judd944 is offline
Officially Welcomed to the 'Fest
Location: Lexington, KY
 
Join Date: Oct 2004
Posts: 529
Mein Auto: 03 745i Sport / 01 986S
photos

for some reason I could not edit my first post. I hope these photos help.
Attached Thumbnails
Click image for larger version

Name:	image002.jpg
Views:	1163
Size:	17.2 KB
ID:	164394   Click image for larger version

Name:	image004.jpg
Views:	1238
Size:	12.8 KB
ID:	164395   Click image for larger version

Name:	image006.jpg
Views:	2059
Size:	24.8 KB
ID:	164396   Click image for larger version

Name:	image008.jpg
Views:	2696
Size:	64.4 KB
ID:	164397   Click image for larger version

Name:	image010.jpg
Views:	2442
Size:	25.9 KB
ID:	164398  

Click image for larger version

Name:	image012.jpg
Views:	2535
Size:	14.6 KB
ID:	164399  
__________________
--------------------------------------------------
2003 745i Sport Sterling Gray/Black
2001 986S Seal Gray / Boxster Red

Past:
98 540i Sport
6 944's
Reply With Quote
  #11  
Old 10-24-2008, 08:32 AM
Din's Avatar
Din Din is offline
Officially Welcomed to the 'Fest
Location: Texas
 
Join Date: Feb 2006
Posts: 1,086
Mein Auto: 750LI M3 Mustang Tundra
spark plugs should come pregapped but it is always best to double check.
Reply With Quote
  #12  
Old 10-24-2008, 09:38 AM
Call Me Daddy Call Me Daddy is offline
Porsche Ex-Pat
Location: Seal Beach, CA
 
Join Date: Nov 2007
Posts: 652
Send a message via AIM to Call Me Daddy
Mein Auto: 2003 745i Blk/Blk Sport
Nice write up - how much would this have cost to have done??
__________________

Am I crazy or am I?
Reply With Quote
  #13  
Old 10-27-2008, 07:37 AM
Judd944 Judd944 is offline
Officially Welcomed to the 'Fest
Location: Lexington, KY
 
Join Date: Oct 2004
Posts: 529
Mein Auto: 03 745i Sport / 01 986S
not sure, has anyone paid to have the spark plugs changed on the board?
__________________
--------------------------------------------------
2003 745i Sport Sterling Gray/Black
2001 986S Seal Gray / Boxster Red

Past:
98 540i Sport
6 944's
Reply With Quote
  #14  
Old 10-27-2008, 10:42 AM
imgammara imgammara is offline
Registered User
Location: Dallas
 
Join Date: Nov 2007
Posts: 36
Mein Auto: 03' 745 Li
Do you remember the spark plug number you used? The NGK number?
__________________
2 wrongs don't make a right, but 3 lefts do.

03 745Li
08 335i Vert
MB G -500
KTM 250
Custom Chopper
Reply With Quote
  #15  
Old 10-27-2008, 12:10 PM
starioncorrado starioncorrado is offline
asc-abs sensors rock!!!!
Location: houston tx
 
Join Date: Jan 2008
Posts: 413
Send a message via Yahoo to starioncorrado
Mein Auto: 2002 745i
Dealer price was on y 7 was gonna be 320 with labor and parts. doing it yourself about 75 dollars or so. Not bad and really easy to do. The only ones to give you hell are the back of the backs. LOL!!!!
__________________
Reply With Quote
  #16  
Old 10-28-2008, 03:50 PM
diznik007's Avatar
diznik007 diznik007 is offline
Officially Welcomed to the 'Fest
Location: Bay Area, CA
 
Join Date: Nov 2007
Posts: 3,344
Mein Auto: Kubota on 48's
Quote:
Originally Posted by imgammara View Post
Do you remember the spark plug number you used? The NGK number?
Spark Plug - NGK BKR6EQUP
http://www.amazon.com/NGK-BKR6EQUP-S.../dp/B000AUN9F8

or go to bavauto.com
__________________

E66 SAPPHIRE BLACK
Reply With Quote
  #17  
Old 10-28-2008, 08:10 AM
Judd944 Judd944 is offline
Officially Welcomed to the 'Fest
Location: Lexington, KY
 
Join Date: Oct 2004
Posts: 529
Mein Auto: 03 745i Sport / 01 986S
I do not recall the NGK part # sorry. Autozone had it listed when I told them the car was a 2003 745i
__________________
--------------------------------------------------
2003 745i Sport Sterling Gray/Black
2001 986S Seal Gray / Boxster Red

Past:
98 540i Sport
6 944's
Reply With Quote
  #18  
Old 10-28-2008, 08:31 AM
AZIPOD AZIPOD is offline
Officially Welcomed to the 'Fest
Location: USA
 
Join Date: Feb 2007
Posts: 433
Mein Auto: E66,E90,W211,NSX,E39,E38
$2 for Platinum spark plugs???? Are you sure you got the right ones?
Reply With Quote
  #19  
Old 10-28-2008, 10:15 AM
diznik007's Avatar
diznik007 diznik007 is offline
Officially Welcomed to the 'Fest
Location: Bay Area, CA
 
Join Date: Nov 2007
Posts: 3,344
Mein Auto: Kubota on 48's
platinum spark plugs are not $2. they should have been at least $10 each. sorry, i think you got the wrong plugs
__________________

E66 SAPPHIRE BLACK
Reply With Quote
  #20  
Old 10-29-2008, 10:25 AM
Judd944 Judd944 is offline
Officially Welcomed to the 'Fest
Location: Lexington, KY
 
Join Date: Oct 2004
Posts: 529
Mein Auto: 03 745i Sport / 01 986S
I did not get the platnum ones. they are not the 4 prong ones. I heard bad things about the Bosch 4 prong ones from the E39 4.4L engine. I always ran one prong on that engine and changed them every 100k.
__________________
--------------------------------------------------
2003 745i Sport Sterling Gray/Black
2001 986S Seal Gray / Boxster Red

Past:
98 540i Sport
6 944's
Reply With Quote
  #21  
Old 10-29-2008, 02:45 PM
blk45's Avatar
blk45 blk45 is offline
Officially Welcomed to the 'Fest
Location: Tampa Bay, FL
 
Join Date: Jul 2006
Posts: 507
Mein Auto: E65
Should have got the NGKs.
Reply With Quote
  #22  
Old 11-02-2008, 06:17 PM
teejaylentz teejaylentz is offline
Officially Welcomed to the 'Fest
Location: Redmond, WA
 
Join Date: Sep 2008
Posts: 313
Mein Auto: 2002 745i
I just finished changing my plugs today. Took me almost 3 hours... first time on a BMW, although I have done it on several other vehicles including a Ford V8. (can't imagine finishing this in 45 min!!!) The pain points were the back plugs which are difficult to maneuver and a problem where a couple of coil boots got stuck inside the spark plug hole and persistent effort inserting and removing the coil would not get enough friction to pull them out. I was able to solve this by sticking a latex glove over the end of the coil, insert it into the hole and pull the rubber boot out with it. This worked on both of the coils where the boots got stuck inside.

It's apparent also that I have a valve cover leak as I found some oil on the spark plugs and coil boots (which I think is what made the coil boots get stuck!). This doesn't appear to be severe as I see no oil on the bottom of the engine block itself.

I used NGK Iridium (BKR6EIX) plugs (Schuck's has them for $6.99 and gave me a 10% discount to boot!).

Maybe it's my imagination, but I noticed the car seems more responsive after changing the plugs.
Reply With Quote
  #23  
Old 12-13-2008, 04:08 PM
tpk1969 tpk1969 is offline
Registered User
Location: CT
 
Join Date: Dec 2008
Posts: 3
Mein Auto: 2002 745i
Thank you

Thank you for the directions and the pics. Could have been done in an hour if one of the ratchet extension didn't drop to the heat/protection shield below. Extra twenty minutes there jacking up the car, etc.
Reply With Quote
  #24  
Old 11-02-2008, 12:21 PM
AZIPOD AZIPOD is offline
Officially Welcomed to the 'Fest
Location: USA
 
Join Date: Feb 2007
Posts: 433
Mein Auto: E66,E90,W211,NSX,E39,E38
Somehow running $2 spark-plugs for 100,000 miles on a BMW 7, or any other car for that matter just doesn't sound right.....
Reply With Quote
  #25  
Old 11-02-2008, 01:35 PM
fwd4g63 fwd4g63 is offline
Registered User
Location: monroe nc
 
Join Date: Jul 2007
Posts: 34
Mein Auto: 2007 F250, 2004 745li
thanks for the writeup and directions. i did my plugs today. switched out for ngk iridium plugs. smoother idle and i will see about gas mileage. I didnt have to use the tap but did use 2 extensions for the back to plugs and just seperated them as they came out. Made life much easier.
Reply With Quote
Reply

Bookmarks

Tags
745i spark plug diy, e65/66 spark plug diy


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 03:13 AM.


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