Home Forums Articles How To's FAQ Register
Go Back   Xoutpost.com > BMW SAV Forums > X5 (E53) Forum
Arnott
User Name
Password
Member List Premier Membership Search Today's Posts Mark Forums Read

Xoutpost server transfer and maintenance is occurring....
Xoutpost is currently undergoing a planned server migration.... stay tuned for new developments.... sincerely, the management


Reply
 
LinkBack Thread Tools Display Modes
  #11  
Old 04-24-2019, 03:34 PM
andrewwynn's Avatar
Member
 
Join Date: Jun 2015
Location: Racine, WI
Posts: 10,817
andrewwynn will become famous soon enough
I wouldn't veto the idea of grabbing a couple used from a pick n pull yard to toss in the trunk. It sure was nice to have the hand me down ready to throw in when wife's car was repeatedly throwing misfires on the same cylinder.

Here a possible debugging tip: old crappy spark plugs rooted out weak coil packs like a metal detector and a coin. Maybe when about to change plugs mis set the gap on purpose to give the coils some extra work and detemine if any are weak.

Wife had repeated misfire one cylinder. Plug was completely gross so I changes plugs problem went away for months then came back. One cylinder.same cylinder (actually one over because I swapped 3&4 so I was pretty confident it was the coil). Replaced that coil then got some misfires on a second coil a couple days later. Swapped that coil and also ran some Lucas injector cleaner. No misfires since


Sent from my iPhone using Tapatalk Pro
__________________
2011 E70 • N55 (me)
2012 E70 • N63 (wife)
Reply With Quote

Sponsored Links

  #12  
Old 04-24-2019, 04:02 PM
Member
 
Join Date: Jun 2014
Location: Omaha, NE
Posts: 1,609
cn90 is on a distinguished road
Agree that no need to replace the coils pre-emptively.

Best is to remove the cosmetic cover (save it on your garage shelf).
Then get a few good used coils (usually Bremi) from local junk yard or eBay and keep them in the trunk.
Then keep an inexpensive OBD code reader in the trunk.

This way you can quickly an error code and swap the coil quickly.
__________________
1998 E39 528i 5sp MT
2006 E53 X5 3.0 6sp MT
Reply With Quote
  #13  
Old 04-24-2019, 06:11 PM
andrewwynn's Avatar
Member
 
Join Date: Jun 2015
Location: Racine, WI
Posts: 10,817
andrewwynn will become famous soon enough
When I've had one go bad I could drive quite a bit on a reset so code reader most important I kept one of the weak coils in case of complete failure I can be operational but I'm going to look for a couple hand me down units


Sent from my iPhone using Tapatalk Pro
__________________
2011 E70 • N55 (me)
2012 E70 • N63 (wife)
Reply With Quote
  #14  
Old 04-24-2019, 06:16 PM
bcredliner's Avatar
Premier Member
 
Join Date: Jun 2008
Location: Little Elm,Texas. (40 minutes North of Dallas)
Posts: 8,105
bcredliner is on a distinguished road
IMO, there is no need to carry an extra coil. It's not like BMW coils have a high failure rate. Just do the preventative maintenance and drive on. If that concerned, when a coil goes bad and all are the same age, replace all of them.
__________________
X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior
Dallas
Reply With Quote
  #15  
Old 04-24-2019, 06:44 PM
Member
 
Join Date: Jun 2014
Location: Omaha, NE
Posts: 1,609
cn90 is on a distinguished road
Around town, no need to carry the spare coils.

On long distance trips, extra coil(s) is/are useful.
__________________
1998 E39 528i 5sp MT
2006 E53 X5 3.0 6sp MT
Reply With Quote
  #16  
Old 04-24-2019, 06:45 PM
andrewwynn's Avatar
Member
 
Join Date: Jun 2015
Location: Racine, WI
Posts: 10,817
andrewwynn will become famous soon enough
Correct but they won't take any space no reason to not keep with the spare tire


Sent from my iPhone using Tapatalk Pro
__________________
2011 E70 • N55 (me)
2012 E70 • N63 (wife)
Reply With Quote
  #17  
Old 04-24-2019, 07:43 PM
bcredliner's Avatar
Premier Member
 
Join Date: Jun 2008
Location: Little Elm,Texas. (40 minutes North of Dallas)
Posts: 8,105
bcredliner is on a distinguished road
No need to defend your opinion. I just have a different opinion. Before I would carry a coil, I would carry belts or hoses and I don't do that either. Too many different things that can happen. I carry a basic tool kit and duck tape. Other than that I wouldn't know where to stop with spare parts. AAA is my peace of mind.
__________________
X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior
Dallas
Reply With Quote
  #18  
Old 04-24-2019, 08:48 PM
EODguy's Avatar
Member
 
Join Date: Jun 2018
Location: Saudi Arabia/Philippines/USA
Posts: 3,831
EODguy is on a distinguished road
It's all relative to where and how far you're going. In the Middle East I carry tools, parts, floor jack, sand ladder, water, lights, oil, bribe money and shelter.

Sent from my SM-A730F using Tapatalk
__________________
"When the Team Chief said.... You're trapped in a hole with nothing but a goat and a slinky, what do you do? Stubby said, I'm not sure but it won't end well for the goat...." ~(Overheard) Last day, Phase 3, Q Course
Reply With Quote
  #19  
Old 04-24-2019, 08:52 PM
Member
 
Join Date: Apr 2015
Location: Sacramento
Posts: 193
stiubhartach is on a distinguished road
Quote:
Originally Posted by Meestahbig View Post
... coils either work or don't. I will change the plugs in a short while.
That’s not entirely true. Coils, like all high energy components degrade slowly over time. After several years, they won’t be generating the same spark voltage as when new.

A degrading coil won’t strand you on the side of the road, but it WILL reduce spark energy which can reduce burn efficiency. That can eventually cause increased fuel consumption, fouled plugs, cat heating, etc.

Coils should be changed before they hit total failure, but WHEN is up to you. I just changed mine at 12 years and 160k miles. The performance increase was noticeable.

Use OEM which is Bosch or BMW.
__________________
2005 X5 4.4i SterlingGrau, Sport Package, DSP
Build 3/12/2005



Reply With Quote
  #20  
Old 04-24-2019, 10:02 PM
Member
 
Join Date: Apr 2015
Location: Sacramento
Posts: 193
stiubhartach is on a distinguished road
Quote:
Originally Posted by oldskewel View Post
. But it did seem a little sketchy removing them, so I'd be a little worried about leaving them in there indefinitely.
The first time you pull a plug and the seized threads come with it, will cure you forever of not changing plugs frequently. Repair is such a pain in the ass.
__________________
2005 X5 4.4i SterlingGrau, Sport Package, DSP
Build 3/12/2005



Reply With Quote
Reply

Bookmarks

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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On





All times are GMT -4. The time now is 09:31 PM.
vBulletin, Copyright 2024, Jelsoft Enterprises Ltd. SEO by vBSEO 3.6.0
© 2017 Xoutpost.com. All rights reserved. Xoutpost.com is a private enthusiast site not associated with BMW AG.
The BMW name, marks, M stripe logo, and Roundel logo as well as X3, X5 and X6 designations used in the pages of this Web Site are the property of BMW AG.
This web site is not sponsored or affiliated in any way with BMW AG or any of its subsidiaries.