BMW X5 and X6 Forum 2014-Current
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Post Reply
 
Thread Tools Search this Thread
      09-30-2018, 11:46 AM   #1
UT_X5
New Member
6
Rep
16
Posts

Drives: X5 50i
Join Date: Feb 2017
Location: Dallas,TX

iTrader: (0)

X5 50i spark plug and coils

Shout out to Maverik259, Doberman16, and DuSH for sharing spark resolutions for tuned 50i.

After running with JB4 and Dinan, I switched to BM3 Stage 1. Damn it's amazing. BUT car starting hesitating/shudder during WOT. As I read, the issue only gets worse and it did. Eventually lead to drive train malfunction and the car became a violent, rolling shaker bottle.

Locked the DME and took it to the dealership to have X5M (gapped 0.023in) plugs, new coils, and X5M air filters installed.

Results are that it did the trick! Car runs smooth and pulls amazing. Dyno scheduled for next week before DPs.
Appreciate 0
      09-30-2018, 05:23 PM   #2
Live4USMC
Private First Class
Live4USMC's Avatar
United_States
26
Rep
101
Posts

Drives: 2014 X5 50i M Sport/2016 340XI
Join Date: Dec 2010
Location: 5280 Feet Above Sea Level

iTrader: (0)

Are the x5m coils different than n63tu coils? How much per coil?
Appreciate 0
      09-30-2018, 06:14 PM   #3
UT_X5
New Member
6
Rep
16
Posts

Drives: X5 50i
Join Date: Feb 2017
Location: Dallas,TX

iTrader: (0)

I just ran with N63TU coils. I got an employee discount for coils $20 a coil.
Appreciate 0
      09-30-2018, 10:07 PM   #4
perry8912
Second Lieutenant
Canada
92
Rep
233
Posts

Drives: bmw x5
Join Date: Aug 2015
Location: Calgary, AB

iTrader: (0)

Is that stage 1 91 tune or 93? I’m currently running 91, but not sure if it worth it to do 93....
Appreciate 0
      10-01-2018, 08:39 PM   #5
UT_X5
New Member
6
Rep
16
Posts

Drives: X5 50i
Join Date: Feb 2017
Location: Dallas,TX

iTrader: (0)

Currently running Stage 1 93. My butt dyno thinks it worth it hah
Appreciate 0
      03-02-2019, 11:27 AM   #6
sbkim
First Lieutenant
19
Rep
346
Posts

Drives: 2015 5.0
Join Date: May 2006
Location: nowhere, nv

iTrader: (0)

Sorry for dumb question but I am taking the car in for plug change at the dealership. My 50i has almost 60K miles. Also experienced drivetrain malfunction but cleared up. Intermittently feels lacking power during highway speeds.


Should I tell them to change the coils as well since they are already incurring the labor with spark plugs and technically it should just be additional parts only?
Appreciate 0
      03-02-2019, 11:32 AM   #7
Silververtu
Captain
128
Rep
846
Posts

Drives: 2015 Cayman S
Join Date: Aug 2007
Location: US of A

iTrader: (5)

Quote:
Originally Posted by sbkim View Post
Sorry for dumb question but I am taking the car in for plug change at the dealership. My 50i has almost 60K miles. Also experienced drivetrain malfunction but cleared up. Intermittently feels lacking power during highway speeds.


Should I tell them to change the coils as well since they are already incurring the labor with spark plugs and technically it should just be additional parts only?
I would ask them to change the coils at the same time since they have to take the coils out to replace spark plugs. Of course double check with the SA to make sure they don't "double dip" the labor time.
__________________
2015 Cayman S, 2015 X5 50i M Sport

Gone but not forgotten:
2006 2.0T A4 Avant, 2007 Z4 Roadster 3.0si, 2006 M Roadster, 2013 550i M Sport
Appreciate 0
      03-02-2019, 11:44 AM   #8
sbkim
First Lieutenant
19
Rep
346
Posts

Drives: 2015 5.0
Join Date: May 2006
Location: nowhere, nv

iTrader: (0)

Quote:
Originally Posted by Silververtu View Post
I would ask them to change the coils at the same time since they have to take the coils out to replace spark plugs. Of course double check with the SA to make sure they don't "double dip" the labor time.

Thank you! I didn't want to unnecessarily replace but seems like a good idea to change out completely with plugs, at 60K miles.
Appreciate 0
      03-02-2019, 05:14 PM   #9
mikew2069
Lieutenant Colonel
mikew2069's Avatar
302
Rep
1,764
Posts

Drives: F30 335i MSport
Join Date: Oct 2012
Location: Houston

iTrader: (2)

Quote:
Originally Posted by sbkim View Post
Thank you! I didn't want to unnecessarily replace but seems like a good idea to change out completely with plugs, at 60K miles.
Personally I think itís unnecessary. Those coils should last you until your next plug change.
Appreciate 0
      03-02-2019, 07:46 PM   #10
sbkim
First Lieutenant
19
Rep
346
Posts

Drives: 2015 5.0
Join Date: May 2006
Location: nowhere, nv

iTrader: (0)

My current issue with my 50i is when I try to accelerate while going past 70mph (for instance to pass someone), the car shuddering intermittently, almost as if I am going over bumpy road. I used my OBD scanner and there are no error codes, at least not yet. I presume its the plugs. I was going to try different gas (typically use 93 Costco) and or use Techron complete cleaner?

Last edited by sbkim; 03-02-2019 at 07:53 PM.
Appreciate 0
      03-04-2019, 11:13 PM   #11
Maverik259
Colonel
Maverik259's Avatar
United_States
1432
Rep
2,802
Posts

Drives: F15 50i
Join Date: Jun 2017
Location: Virginia

iTrader: (0)

Garage List
2014 X5 50i  [0.00]
Quote:
Originally Posted by sbkim View Post
My current issue with my 50i is when I try to accelerate while going past 70mph (for instance to pass someone), the car shuddering intermittently, almost as if I am going over bumpy road. I used my OBD scanner and there are no error codes, at least not yet. I presume its the plugs. I was going to try different gas (typically use 93 Costco) and or use Techron complete cleaner?
Plugs
__________________
'07 Yamaha R1 (sold)
'06 C55 AMG (sold)
'14 X5 50i, RC Ultimate, MP black kidney grills, MP pedals, MP kick plates, F85 Nappa knee bolsters, IND Black Roundels, M Side Mirrors
Appreciate 0
      03-05-2019, 07:30 AM   #12
mikew2069
Lieutenant Colonel
mikew2069's Avatar
302
Rep
1,764
Posts

Drives: F30 335i MSport
Join Date: Oct 2012
Location: Houston

iTrader: (2)

Quote:
Originally Posted by Maverik259 View Post
Plugs
^^^This
__________________
2013 F30 335i ///M-Sport
Forgestar/Challenge/BMS JB4
Wagner/Evo Race/M-Performance
2016 F15 50i ///M-Sport
BM3/H&R/Borla
Appreciate 0
      03-06-2019, 07:18 AM   #13
BobBeau
Private First Class
United_States
98
Rep
149
Posts

Drives: X5 50i
Join Date: Dec 2011
Location: I'd rather be in Utah

iTrader: (0)

Quote:
Originally Posted by Maverik259 View Post
Plugs
Quote:
Originally Posted by mikew2069 View Post
^^^This
Not necessarily guys. I had the same problem and changed the plugs with no success. It wasn't until I changed the coils that the problem went away. Just my experience.
Appreciate 1
      03-06-2019, 12:57 PM   #14
mikew2069
Lieutenant Colonel
mikew2069's Avatar
302
Rep
1,764
Posts

Drives: F30 335i MSport
Join Date: Oct 2012
Location: Houston

iTrader: (2)

Quote:
Originally Posted by BobBeau View Post
Not necessarily guys. I had the same problem and changed the plugs with no success. It wasn't until I changes the coils that the problem went away. Just my experience.
You're right, anything is possible so you never know. I'd at least just start with the plugs and go from there.
__________________
2013 F30 335i ///M-Sport
Forgestar/Challenge/BMS JB4
Wagner/Evo Race/M-Performance
2016 F15 50i ///M-Sport
BM3/H&R/Borla
Appreciate 0
      03-06-2019, 02:11 PM   #15
sbkim
First Lieutenant
19
Rep
346
Posts

Drives: 2015 5.0
Join Date: May 2006
Location: nowhere, nv

iTrader: (0)

Thanks everyone. Going in for plugs tomorrow. I will keep you guys posted.
Appreciate 1
      03-06-2019, 06:11 PM   #16
alphaod
MmmmmÖ
alphaod's Avatar
United_States
723
Rep
2,021
Posts

Drives: F15
Join Date: Oct 2011
Location: New York

iTrader: (0)

Garage List
Just new plugs gapped to 0.23" fixed my 4th gear plus WOT stutter problems...
__________________
2015 BMW X5 xDrive50i
BMW CCA 509766
Appreciate 0
      03-08-2019, 05:16 PM   #17
sbkim
First Lieutenant
19
Rep
346
Posts

Drives: 2015 5.0
Join Date: May 2006
Location: nowhere, nv

iTrader: (0)

Quick update. Spark plugs were changed and car runs like new! SA said that coils still looked OK and not recommended changing. Thanks everyone!
Appreciate 0
      03-08-2019, 06:01 PM   #18
trlengle
Private
United_States
76
Rep
89
Posts

Drives: 2016 X5 50i MSport White
Join Date: Nov 2018
Location: WA

iTrader: (0)

Are X5M plugs the best upgrade option? I recall a mention of NGK but can't find the model and what the thought was on performance.
__________________
2016 X5 50i MSport in White
Dinan Powered
AC Schnitzer Springs
22" Varro VD01 Wheels
iND Black Emblems and Badge
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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


All times are GMT -5. The time now is 09:23 AM.




xbimmers
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST