BMW M3 Forum (E90 E92)

BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Go Back   M3Post - BMW M3 Forum > E90/E92 M3 Technical Topics > Mechanical Maintenance: Break-in / Oil & Fluids / Servicing
 
GetBMWParts
Post Reply
 
Thread Tools Search this Thread
      12-22-2012, 11:38 AM   #1
Mpowah
Enlisted Member
 
Drives: 2008 E90 M3
Join Date: Aug 2012
Location: Middletown, Delaware

Posts: 32
iTrader: (0)

Spark Plug Change

Hey folks -

When would you consider changing your spark plugs? To refine my question further, I am not asking when does the manufacturer recommend it but rather when is it reasonable to change it? I have 46,000 miles on my 08 M3 and I baby the car in the event this impacts the responses to this question. Thanks for your input in advance!
Mpowah is offline   United_States
0
Reply With Quote
      12-22-2012, 11:49 AM   #2
elm3
M3 Lover
 
elm3's Avatar
 
Drives: 2009 e92 M3 Interlagos Blue
Join Date: Sep 2008
Location: Canton, GA.

Posts: 1,847
iTrader: (1)

Garage List
Quote:
Originally Posted by Mpowah View Post
Hey folks -

When would you consider changing your spark plugs? To refine my question further, I am not asking when does the manufacturer recommend it but rather when is it reasonable to change it? I have 46,000 miles on my 08 M3 and I baby the car in the event this impacts the responses to this question. Thanks for your input in advance!
If they haven't changed it by now, I would do it. Just my 0.02cents.
__________________
'09 E92 ///M3 Interlagos Blue, 6MT, Silver Novillo Leather, CF Trim, Premium Package, Technology Package, Cold Weather Package, Premium Sound, 19" Wheels, Moonroof-Toy/ '11 E90 328i Black Saphire Metallic, Premium Package, Technology Package - Daily Driver '02 Nissan Xterra- Daily Driver/ '04 Yamaha R1-Toy/ '06 Yamaha Raptor 350-Toy
elm3 is offline   United_States
0
Reply With Quote
      12-22-2012, 11:54 AM   #3
Mpowah
Enlisted Member
 
Drives: 2008 E90 M3
Join Date: Aug 2012
Location: Middletown, Delaware

Posts: 32
iTrader: (0)

Thank you for providing your input. I'm looking to do it at 50,000 miles.
Mpowah is offline   United_States
0
Reply With Quote
      12-22-2012, 12:04 PM   #4
baba louey
Second Lieutenant
 
Drives: 2012 M3 coupe
Join Date: Aug 2012
Location: calgary

Posts: 235
iTrader: (0)

I know that plugs last a lot longer than they used to but 4 years and 46K miles seems a tad long. Change them.
baba louey is offline  
0
Reply With Quote
      12-22-2012, 12:10 PM   #5
MA///M3
Banned
 
Drives: 2008 BMW M3 DCT COUPE
Join Date: Sep 2011
Location: BOSTON, MA

Posts: 346
iTrader: (0)

I would change them now too. Bay it or not. I have a 08, changed around 35K.
MA///M3 is offline   United_States
0
Reply With Quote
      12-22-2012, 12:19 PM   #6
e1000
that's what SHE said!
 
Drives: 2011 E92 M3 ZCP
Join Date: Jun 2010
Location: OC

Posts: 1,076
iTrader: (1)

Change them. Be prepared for your car to feel like a monster for about a week. It's great.
__________________
e1000 is offline  
0
Reply With Quote
      12-22-2012, 12:26 PM   #7
MDyDinanM
OIF Veteran
 
MDyDinanM's Avatar
 
Drives: ///M
Join Date: Oct 2009
Location: East Coast

Posts: 2,085
iTrader: (0)

Garage List
2008 BMW M5  [3.44]
I change mine every 30K miles.

I follow Mike Miller's Old School Maintenance Guide.

See attached
Attached Images
File Type: pdf Old School Maintenance Schedule v01.09.pdf (311.1 KB, 1036 views)
__________________
Retired: '06 BMW E46 ///M3
Current: '08 BMW E60 DINAN ///M5, Interlagos Blue, SMG
DINAN Stage 2 Suspension, Exhaust, Stage III Software, Front strut braces,
Intakes, 13% Underdrive pulley, 3.91 Differential, RPI Scoops.

Last edited by MDyDinanM; 12-22-2012 at 12:33 PM.
MDyDinanM is offline   United_States
0
Reply With Quote
      12-22-2012, 12:27 PM   #8
M3Now!
First Lieutenant
 
Drives: 09 E93, Jerez Black
Join Date: Sep 2011
Location: Texas

Posts: 372
iTrader: (0)

Pretty sure the dealer changed mine at 30k - which seemed really early, but for it to be included in the scheduled maintenance (so BMW pays), apparently it's needed. Maybe the S65 is really sensitive to gap?

Cheers
__________________


2009 E93 M3 - it's, um, pretty fun
M3Now! is offline  
0
Reply With Quote
      12-22-2012, 12:29 PM   #9
Mpowah
Enlisted Member
 
Drives: 2008 E90 M3
Join Date: Aug 2012
Location: Middletown, Delaware

Posts: 32
iTrader: (0)

Good information sounds like I better get it done!
Mpowah is offline   United_States
0
Reply With Quote
      12-22-2012, 12:31 PM   #10
gatorfast
Colonel
 
gatorfast's Avatar
 
Drives: MR E90 M3
Join Date: Jan 2008
Location: SoFla

Posts: 2,540
iTrader: (3)

If your plugs have never been changed I would do it immediately and switch dealer's as this should have been done at 37k miles (per manufacturer recommendation).

However, seems like most people have them changed by the dealer before the car hits 37k, usually somewhere in the low 30k range. Think my car had it done around 32k miles and I will be doing it again shortly when I hit 60k miles.

On a side note, quit babying the car an drive it hard! Whats the point of owing an M3 if you drive it like a grandma?
gatorfast is offline  
0
Reply With Quote
      12-22-2012, 12:32 PM   #11
elm3
M3 Lover
 
elm3's Avatar
 
Drives: 2009 e92 M3 Interlagos Blue
Join Date: Sep 2008
Location: Canton, GA.

Posts: 1,847
iTrader: (1)

Garage List
Quote:
Originally Posted by mdyaman View Post
I change mine every 30K miles.

I follow Mike Miller's Old School Maintenance Guide.
^^^^ +1, if you are planning on keeping your car for a long while, I would do the old school maintenance schedule for our cars.
__________________
'09 E92 ///M3 Interlagos Blue, 6MT, Silver Novillo Leather, CF Trim, Premium Package, Technology Package, Cold Weather Package, Premium Sound, 19" Wheels, Moonroof-Toy/ '11 E90 328i Black Saphire Metallic, Premium Package, Technology Package - Daily Driver '02 Nissan Xterra- Daily Driver/ '04 Yamaha R1-Toy/ '06 Yamaha Raptor 350-Toy
elm3 is offline   United_States
0
Reply With Quote
      12-22-2012, 12:34 PM   #12
MDyDinanM
OIF Veteran
 
MDyDinanM's Avatar
 
Drives: ///M
Join Date: Oct 2009
Location: East Coast

Posts: 2,085
iTrader: (0)

Garage List
2008 BMW M5  [3.44]
Quote:
Originally Posted by gatorfast View Post
.

On a side note, quit babying the car an drive it hard! Whats the point of owing an M3 if you drive it like a grandma?
you know, I hear this all the time... "quit babying your car - drive it hard". The reality is that with the roads, traffic, and cops in my area, its quite impossible to drive your car hard.
__________________
Retired: '06 BMW E46 ///M3
Current: '08 BMW E60 DINAN ///M5, Interlagos Blue, SMG
DINAN Stage 2 Suspension, Exhaust, Stage III Software, Front strut braces,
Intakes, 13% Underdrive pulley, 3.91 Differential, RPI Scoops.
MDyDinanM is offline   United_States
0
Reply With Quote
      12-22-2012, 12:41 PM   #13
gatorfast
Colonel
 
gatorfast's Avatar
 
Drives: MR E90 M3
Join Date: Jan 2008
Location: SoFla

Posts: 2,540
iTrader: (3)

Quote:
Originally Posted by mdyaman View Post
you know, I hear this all the time... "quit babying your car - drive it hard". The reality is that with the roads, traffic, and cops in my area, its quite impossible to drive your car hard.
I know what you mean. Im a victim of rush hour and heavy traffic too here in south florida. But any chance I get (even though its not many) Im definitely flooring it to redline
gatorfast is offline  
0
Reply With Quote
      12-22-2012, 01:45 PM   #14
Gins
I can't find my pants.
 
Gins's Avatar
 
Drives: '15 Supergirl Combo M3, YMB-SO
Join Date: May 2011
Location: 8=====D \o/ 335i, yo

Posts: 2,470
iTrader: (5)

Garage List
2008 BMW M3 E90  [0.00]
Quote:
Originally Posted by Mpowah View Post
Hey folks -

When would you consider changing your spark plugs? To refine my question further, I am not asking when does the manufacturer recommend it but rather when is it reasonable to change it? I have 46,000 miles on my 08 M3 and I baby the car in the event this impacts the responses to this question. Thanks for your input in advance!
Your owners manual says every 37k miles.
Gins is offline   No_Country
0
Reply With Quote
      12-22-2012, 01:50 PM   #15
thekurgan
Bad Lieutenant
 
thekurgan's Avatar
 
Drives: E90M3
Join Date: Aug 2007
Location: Sacramento

Posts: 2,687
iTrader: (0)

Garage List
2008 BMW M3  [0.00]
Quote:
Originally Posted by Snig View Post
Your owners manual says every 37k miles.
+1, I do it at 20-25k.
__________________

08 E90M3 6MT Alpinweiss/Carbon/BMW Pedals/Dinan Exhaust/Rattle fixes
thekurgan is online now   United_States
0
Reply With Quote
      12-22-2012, 02:36 PM   #16
shendrick
Second Lieutenant
 
Drives: 08 e90 M3, 05 e46 zhp, 07 X3
Join Date: Jan 2009
Location: Near Boston MA

Posts: 255
iTrader: (0)

Last time my car was in @ 28K miles, the SA said that the car was calling for spark plugs - so I said sure put them in because its like $500 if I went beyond the warranty which was just about up. It did make a difference in performance. What's odd is that you could rack up so many miles without your SA saying something.
shendrick is offline   United_States
0
Reply With Quote
      12-22-2012, 04:03 PM   #17
Mpowah
Enlisted Member
 
Drives: 2008 E90 M3
Join Date: Aug 2012
Location: Middletown, Delaware

Posts: 32
iTrader: (0)

Yeah I recall my SA saying something a few months back but I think I was in a rush and said ill get it done later. Sounds like later should be now lol
Mpowah is offline   United_States
0
Reply With Quote
      12-22-2012, 04:18 PM   #18
thekurgan
Bad Lieutenant
 
thekurgan's Avatar
 
Drives: E90M3
Join Date: Aug 2007
Location: Sacramento

Posts: 2,687
iTrader: (0)

Garage List
2008 BMW M3  [0.00]
It's an easy DIY, plugs in this engine are also the knock sensors IIRC.
__________________

08 E90M3 6MT Alpinweiss/Carbon/BMW Pedals/Dinan Exhaust/Rattle fixes
thekurgan is online now   United_States
0
Reply With Quote
      12-22-2012, 06:19 PM   #19
kscarrol
Colonel
 
Drives: 2011 E90 M3
Join Date: Jun 2010
Location: New Orleans, LA

Posts: 2,119
iTrader: (0)

Quote:
Originally Posted by shendrick View Post
Last time my car was in @ 28K miles, the SA said that the car was calling for spark plugs - so I said sure put them in because its like $500 if I went beyond the warranty which was just about up. It did make a difference in performance. What's odd is that you could rack up so many miles without your SA saying something.
^ This! My car just popped up with the service indicator so I stopped by my dealer to make an appointment. Thought there might be a slim chance of getting it done while I waited because at 22+k miles I assumed it was simply an oil change. SA told me it was more than that and included changing the spark plugs.
__________________
Current: 2011 Space Grey E90 M3, DCT, Comp. Pkg., Conv. Pkg., everything but Cold Weather Pkg!
Gone: 2008 550, Space Grey, Sports Package, Sport Auto Transmission.
Sold: 2004 545i (U.S.), Steptronic, Silver Gray.
kscarrol is offline   United_States
0
Reply With Quote
      12-22-2012, 06:44 PM   #20
gimmethemuumuu
First Lieutenant
 
Drives: '08 M3 Sedan & '07 328i Wagon
Join Date: Apr 2009
Location: Indianapolis, IN

Posts: 301
iTrader: (1)

As others have mentioned, owner's manual says every 37K miles. Most dealers do it at around 30K. Personally, I plan to do it every 25 or 30K miles, on the regular
gimmethemuumuu is offline   United_States
0
Reply With Quote
      12-22-2012, 06:53 PM   #21
VCMpower
Banned
 
Drives: 2010 Dakar, 2013 Fire Orange
Join Date: Jan 2010
Location: Victoria B.C.

Posts: 941
iTrader: (0)

Change them. Those plugs go through a lot with high compression and being used as combustion sensors by the coils.





Quote:
Originally Posted by Mpowah View Post
Good information sounds like I better get it done!
VCMpower is offline   Canada
0
Reply With Quote
      12-22-2012, 09:35 PM   #22
Munit
Banned
 
Drives: m3
Join Date: Oct 2012
Location: CA

Posts: 220
iTrader: (0)

They are not "used" as combustion sensors, rather they simply sense what they normally sense and are relayed back to the coils which have the technology and sensing ability. The plugs are just like any old plugs.

The reason they are important is because if they have carbon built up or residue than the values can be off and thus cannot properly manage knock and timing targets. It ends up cutting a lot of timing with old plugs given it masks the signal
Munit is offline  
0
Reply With Quote
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
Forum Jump


All times are GMT -5. The time now is 09:06 AM.




m3post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, 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