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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > E39 (1997 - 2003)

E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki

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  #1  
Old 01-09-2008, 12:56 PM
E39M5 E39M5 is offline
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Mein Auto: 1998 528i
Spark Plug DIY for E39 98 528

Spark Plug DIY for E39 98 528

I did my sparkplugs today and boy am I sure glad I did them.
First off this is for a 98 528. Might be useful to someone. First what I did was I got the sparkplugs at AutoZone. I went with what my owner’s manual said. My car had 4 prong NKG in there and my new plugs are 2 prong BOSCH. I like BOSCH better so that’s why they went in there.

Proper Steps
1. Get New Plugs. Either NGK or BOSCH: 2 or 4 Prong.
2. Have some basic tools ready. A sparkplug socket is a must to make life easy.
3. Open driver side door and pull the hood release latch under the steering wheel.
4. Use a flat head screw driver to pry out the covers to get to the bolts so you can take off the engine cover. This is where a 10mm comes in handy.
5. Remove engine cover and oil cap and place to the side.
6. Unclip part next to sparkplugs and unbolt the 12 bolts that hold the 6 sparkplugs in place. Two for each sparkplug.
7. Replace old ones with new ones but make sure to put anti-seize on each new plug and then insert them back in place
8. Double check plugs are torqued at 21 lb/ft.
9. Place all bolts back in proper places and put the engine cover back on and bolt it in place and you're done.

First thing

Second

Part 3

Step 4

Step 5

Step 6


OLD VS. NEW


Old sparkplugs
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  #2  
Old 01-09-2008, 01:29 PM
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Fudman Fudman is offline
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Nice DIY. How many miles were on the old plugs?
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  #3  
Old 01-09-2008, 06:41 PM
jsayreshepherd jsayreshepherd is offline
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I actually just did this over the weekend, along with a couple of other things (I'm quite proud of the fact that this was my first ever DIY!!!)

One thing to note is that the wire harness (your blue oval in part four) does not need to be unclipped. There is a wire collar that fastens the wire ending to each bremi plug - simply raise ir up (by hand, no tool required), and the bremi plug will be free to pull straight out.

This confused me on the first cylinder as well, but after staring at it for half an hour and figuring that there must be a better way, I figured it out.

Oh - and I put the oil cap back on while working, just in case I f***d up and dropped a bolt in there!!!!!! Probably just cause I'm an amateur.........
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  #4  
Old 05-03-2008, 12:43 PM
PaoloT PaoloT is offline
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Great info!

Great info! Only difficulty I ran into was the last spark plug [the one closest to the cabin]. Had to remove the air intake to get my socket extention on. Other than that as easy as you said.
For anyone who has never replaced spark plugs I would recommend takin' it easy when putting in the new plugs. Hand tighten with the socket extension without the rarchet first just to make sure you don't crossthread.
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  #5  
Old 05-04-2008, 11:01 AM
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tomibriggs tomibriggs is offline
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Awesome!
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  #6  
Old 05-04-2008, 02:21 PM
outafaze outafaze is offline
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I did this couple weeks ago while replacing gthe valve cover gasket. My trick for the plug closest to the window was 12 inch section of 3/8 inch fuel hose. It work great for angles and it will more than likely slip before you cross thread it.
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  #7  
Old 07-09-2009, 07:58 AM
Ghost-Flame Ghost-Flame is offline
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Thank You Thank you

You just saved me $400 PLUS TAX
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  #8  
Old 07-09-2009, 04:01 PM
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trickyrickyrica trickyrickyrica is offline
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I would recommend using an 3/8" universal joint extension, swivel extension, whatever other names are there for it, for that last plug. I would definitely cover the oil refill port during the whole evolution. I would also recommend doing one coil/plug at a time, minimizes little parts running around, and although it doesn't matter what coil goes where, I like to put the coil back where it came from and to use the same bolts.

Maybe is just me... Good job
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  #9  
Old 06-19-2010, 11:39 AM
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bluebee bluebee is offline
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Just to help others, here are some spark plug application charts, one from the Bentleys at page 020-20 and the other from a PDF found on the net here.



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  #10  
Old 06-19-2010, 07:19 PM
july865 july865 is offline
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hey bluebee
can you pm me.. your not accepting pm's
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  #11  
Old 02-28-2011, 10:08 PM
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bluebee bluebee is offline
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For the record, I updated the bestlinks with this thread (and others) as follows:

- BMW spark plug application charts (1) (2), best plug to use (1) (2), deciphering key (1), reading plugs (1), the truth about torque (1), the truth about gap (1) (2) & DIYs for replacing spark plugs (1) (2) (3) (4) (5)
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  #12  
Old 01-08-2012, 07:16 PM
vjd vjd is offline
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A bit simpler...

It seems that the metal clips hold the connector in place. These clips are simple to move by using a small flat head screw driver, as shown in the following pictures. Also, to replace the spark plug closest to the cabin, the combination of a universal joint and a 3/8 to 1/2 conversion can be used as shown in the picture, to help get into and out of the spark plug tunnel. With this scheme the cabin filter doesn't need to be removed (on the 2000 528i) to replace the last plug.
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  #13  
Old 01-10-2012, 11:47 AM
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bluebee bluebee is offline
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Quote:
Originally Posted by vjd View Post
These clips are simple to move by using a small flat head screw driver
For the record, a similar technique was used here:
- One user's pictorial DIY for replacing the BMW M54 engine spark plugs (1)
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  #14  
Old 04-21-2014, 05:52 AM
fjcamry fjcamry is offline
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Quote:
Originally Posted by outafaze View Post
I did this couple weeks ago while replacing gthe valve cover gasket. My trick for the plug closest to the window was 12 inch section of 3/8 inch fuel hose. It work great for angles and it will more than likely slip before you cross thread it.
How do I replace the valve cover gasket on my x3? I was told it was leaking oil. On my way to replacing the spark plugs , but if I need to replace the valve cover gasket, I would need to be ready.
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  #15  
Old 04-21-2014, 06:02 AM
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bluebee bluebee is offline
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Quote:
Originally Posted by fjcamry View Post
How do I replace the valve cover gasket
Type in /vcg f3 into the bestlinks and this pops up (for the E39 anyway):
- How to replace the E39 V8 valve cover gasket (1) (pdf) (2) (3) & VCG DIYs for the E39 I6 (1) (2) (3) (4) (5) & which VCG brand to buy (1) (2) & what VCG lubricants to use (1)

Others exist in that same location ... e.g.,

BMW_E38_M62_V8_VCG_DIY_740i_Valve_Cover_Gasket_ Replacement.pdf (1.63 MB, 739 views)
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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
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  #16  
Old 04-21-2014, 08:11 AM
fjcamry fjcamry is offline
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Could I use a dremmel tool to remove the residue on the valve cover where a bead blaster is recommended?
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