Coil replacement

yeah_knee · 08-11-2017, 03:45 PM

How often should coils be replaced on an f10 m5?

TrevorM3 · 08-11-2017, 03:52 PM

when u misfire.

yeah_knee · 08-11-2017, 05:23 PM

Quote:

Originally Posted by TrevorM3

when u misfire.

I misfired on cylinder 3 and decided to replace all coils and plugs at 60k miles.. but I heard coils last longer than plugs ... I was told afterward I should have replaced all plugs and only coil #3. So I'm a bit confused.

BPMSport · 08-11-2017, 09:18 PM

I would have replaced all plugs and the coil on then misfiring cylinder if the plugs had 60k on them. It's also a good preventative measure to do the other coils as well - but not necessary. I've seen a lot of issues with primarily the 13 and early 14 coils.

yeah_knee · 08-11-2017, 11:37 PM

Quote:

Originally Posted by Mike Benvo

I would have replaced all plugs and the coil on then misfiring cylinder if the plugs had 60k on them. It's also a good preventative measure to do the other coils as well - but not necessary. I've seen a lot of issues with primarily the 13 and early 14 coils.

Alrighty

josec70 · 08-12-2017, 10:40 AM

Quote:

Originally Posted by TrevorM3

when u misfire.

^^^^This .. LOL ...

m5james · 09-01-2017, 11:13 PM

Where's a good place to buy them? Bosch coils are around $22 each on eBay, seeing if there's other options.

Used2be · 09-02-2017, 06:15 AM

Quote:

Originally Posted by m5james

Where's a good place to buy them? Bosch are around $22 each on eBay, seeing if there's other options.

Not sure what 'them' is, but I bought Delphi coils for $24.89 and NGK plugs for $14.12 online from Rock Auto. Both have performed with no problems.

m5james · 09-02-2017, 01:12 PM

Thread title is coil replacement, so that's who them are. I've found Bosch coils for as low as $20.29 on FCPEuro. I bought my NGK two steps colder plugs from BMS' website but I don't recall what they cost.

Used2be · 09-02-2017, 02:52 PM

Quote:

Originally Posted by m5james

Thread title is coil replacement, so that's who them are. I've found Bosch coils for as low as $20.29 on FCPEuro. I bought my NGK two steps colder plugs from BMS' website but I don't recall what they cost.

Okay. Since the only two pertinent comments concerned both plugs and coils, I tried to be helpful and covered both. Great that FCPEuro is even lower than around $22 for the coils.

UnfoundLegend · 09-19-2017, 06:42 PM

Would these misfires mean the coils need replacing?

Video:

BPMSport · 09-25-2017, 01:55 AM

Quote:

Originally Posted by UnfoundLegend

Would these misfires mean the coils need replacing?

Video:

Could be coil, plug, or injector. If not any of those, it's a more serious issue.

UnfoundLegend · 09-25-2017, 09:02 AM

Quote:

Originally Posted by Mike Benvo

Quote:

Originally Posted by UnfoundLegend

Would these misfires mean the coils need replacing?

Video:

Could be coil, plug, or injector. If not any of those, it's a more serious issue.

Quote:

Originally Posted by Mike Benvo

Quote:

Originally Posted by UnfoundLegend

Would these misfires mean the coils need replacing?

[IMG]

View post on imgur.com

[/IMG]

Video:

Could be coil, plug, or injector. If not any of those, it's a more serious issue.

Is it possible that its software related? I had the car reflashed after the dealer updated the software (which wiped the tune), ever since then these misfires have been happening regularly.

BPMSport · 09-25-2017, 12:17 PM

Quote:

Originally Posted by UnfoundLegend

Quote:

Originally Posted by Mike Benvo

Quote:

Originally Posted by UnfoundLegend

Would these misfires mean the coils need replacing?

Video:

Could be coil, plug, or injector. If not any of those, it's a more serious issue.

Quote:

Originally Posted by Mike Benvo

Quote:

Originally Posted by UnfoundLegend

Would these misfires mean the coils need replacing?

[IMG]

View post on imgur.com

[/IMG]

Video:

Could be coil, plug, or injector. If not any of those, it's a more serious issue.

Is it possible that its software related? I had the car reflashed after the dealer updated the software (which wiped the tune), ever since then these misfires have been happening regularly.

I would say no.

Could also be a bad DME if all of the hardware checks out.

BB6 · 10-01-2017, 12:27 PM

Unfound
did you figure out what your issue was. Please update us, I think I may be having the same issue. Thanks

UnfoundLegend · 10-05-2017, 03:53 PM

Quote:

Originally Posted by BB6

Unfound
did you figure out what your issue was. Please update us, I think I may be having the same issue. Thanks

It's currently at the dealership and is getting ignition coil and spark plug (cylinder 5) replaced. Will let you know

UnfoundLegend · 11-12-2017, 09:39 AM

Quote:

Originally Posted by BB6

Unfound
did you figure out what your issue was. Please update us, I think I may be having the same issue. Thanks

It's still not working properly. There's a severe cut-off of power. It may be the injectors.

apexlocator · 11-26-2017, 05:47 AM

Ugh...looks like I popped a coil tonight doing a few freeway runs. Is everyone using oem coils for replacements? Has anyone tried these "high performance" coils? I may change out my plugs too as I'm coming up on 10k miles with current set.

https://www.bavauto.com/5005-8?find=bmw-2014-m5-4516057

https://www.bavauto.com/5005-8?find=bmw-2014-m5-4516057

Edit: spoke with Bavauto and they were cool and told me this coil set wont provide any benefit over OEM Bosch coils for the M models. So, going with NGK 97506 plugs and Bosch 0221504470 coils.

TheHouseWon · 11-27-2017, 04:57 PM

Subbed.

Thanks for the links, apex

schnell1982 · 11-27-2017, 08:50 PM

You don't have to replace the ignition coils on a maintenance interval like spark plugs.
There have been "product brand revisions" and BMW is notorious for this going back to the E36 days. BMW finds a vendor and sure enough that same chassis all a sudden has a TSB "Technical Service Bulletin" and all the ignition coils are being replaced by another brand.
I would only recommend using the factory OEM brand.
Cheap parts are cheap for a reason.

m5james · 11-27-2017, 09:58 PM

I'm just over 100k and while I can't claim any coil issues, I replaced them anyways. I got them from FCP and will replace them at another 100k via their lifetime warranty...assuming I've still got the vehicle then.

boots · 11-28-2017, 02:04 AM

James when I had a misfire I had replaced my plugs and injectors. It was time to anyway. Problem solved. But now it's time to go to a colder plug. My mileage is 115k now.

08-11-2017, 03:45 PM	#1
yeah_knee Captain 137 Rep 633 Posts Drives: 2013 BMW M5 Join Date: Jan 2016 Location: CALI iTrader: (0)	Coil replacement How often should coils be replaced on an f10 m5?
	Appreciate 0 Tweet Quote

08-11-2017, 03:52 PM	#2
TrevorM3 Banned 3321 Rep 8,083 Posts Drives: 6.3 AMG Join Date: Apr 2013 Location: Florida iTrader: (0)	when u misfire.
	Appreciate 0 Quote

08-11-2017, 09:18 PM	#4
BPMSport 3387 Rep 7,541 Posts Drives: Harrop M3 / F10 M5 / F82 M4 Join Date: Apr 2008 Location: SoCal iTrader: (9) Garage List 2000 BMW M5 [0.00] 1990 BMW 735i Turbo [0.00] 2008 BMW M3 [7.50] 2015 BMW M3 [0.00] 2015 BMW M5 [0.00]	I would have replaced all plugs and the coil on then misfiring cylinder if the plugs had 60k on them. It's also a good preventative measure to do the other coils as well - but not necessary. I've seen a lot of issues with primarily the 13 and early 14 coils. __________________ -----\| Like us on Facebook \| Instagram \|\| Tuning Information \| Remote Coding \|----- ----Visit us at www.BPMSport.com - Emotion. Driven. \| Toll Free: (888) 557-5133----
	Appreciate 0 Quote

09-01-2017, 11:13 PM	#7
m5james Colonel 431 Rep 2,062 Posts Drives: '10 X5M Alpine White on Sakhir Join Date: Aug 2015 Location: Marysville, WA iTrader: (0)	Where's a good place to buy them? Bosch coils are around $22 each on eBay, seeing if there's other options. Last edited by m5james; 09-02-2017 at 07:57 PM..
	Appreciate 0 Quote

09-02-2017, 01:12 PM	#9
m5james Colonel 431 Rep 2,062 Posts Drives: '10 X5M Alpine White on Sakhir Join Date: Aug 2015 Location: Marysville, WA iTrader: (0)	Thread title is coil replacement, so that's who them are. I've found Bosch coils for as low as $20.29 on FCPEuro. I bought my NGK two steps colder plugs from BMS' website but I don't recall what they cost.
	Appreciate 0 Quote

09-19-2017, 06:42 PM	#11
UnfoundLegend Second Lieutenant 63 Rep 228 Posts Drives: '14 F13 M6 Coupe Join Date: Apr 2012 Location: FL, USA iTrader: (1)	Would these misfires mean the coils need replacing? Video:
	Appreciate 0 Quote

10-01-2017, 12:27 PM	#15
BB6 Second Lieutenant 84 Rep 210 Posts Drives: M3 G80 Join Date: Feb 2017 Location: Illinois iTrader: (0)	Unfound did you figure out what your issue was. Please update us, I think I may be having the same issue. Thanks
	Appreciate 0 Quote

11-26-2017, 05:47 AM	#18
apexlocator Captain 243 Rep 881 Posts Drives: 2014 M5 Join Date: Feb 2016 Location: socal iTrader: (1)	Ugh...looks like I popped a coil tonight doing a few freeway runs. Is everyone using oem coils for replacements? Has anyone tried these "high performance" coils? I may change out my plugs too as I'm coming up on 10k miles with current set. https://www.bavauto.com/5005-8?find=bmw-2014-m5-4516057 https://www.bavauto.com/5005-8?find=bmw-2014-m5-4516057 Edit: spoke with Bavauto and they were cool and told me this coil set wont provide any benefit over OEM Bosch coils for the M models. So, going with NGK 97506 plugs and Bosch 0221504470 coils. Last edited by apexlocator; 11-27-2017 at 03:27 PM..
	Appreciate 1 TheHouseWon644.00 Quote

11-27-2017, 04:57 PM	#19
TheHouseWon Colonel 644 Rep 2,039 Posts Drives: 2013 M5 Join Date: Nov 2015 Location: SoCal iTrader: (10)	Subbed. Thanks for the links, apex
	Appreciate 0 Quote

11-27-2017, 08:50 PM	#20
schnell1982 Captain 345 Rep 966 Posts Drives: FAST Join Date: Dec 2015 Location: Southern California iTrader: (0)	You don't have to replace the ignition coils on a maintenance interval like spark plugs. There have been "product brand revisions" and BMW is notorious for this going back to the E36 days. BMW finds a vendor and sure enough that same chassis all a sudden has a TSB "Technical Service Bulletin" and all the ignition coils are being replaced by another brand. I would only recommend using the factory OEM brand. Cheap parts are cheap for a reason.
	Appreciate 0 Quote

11-27-2017, 09:58 PM	#21
m5james Colonel 431 Rep 2,062 Posts Drives: '10 X5M Alpine White on Sakhir Join Date: Aug 2015 Location: Marysville, WA iTrader: (0)	I'm just over 100k and while I can't claim any coil issues, I replaced them anyways. I got them from FCP and will replace them at another 100k via their lifetime warranty...assuming I've still got the vehicle then. __________________ '10 BMW X5///M - Alpine White on Sakhir Orange - JB4 w/ HCP Stage 2 BEF, NGK 97506 @ .20, SS tubing & BMC filters, gutted cats, AC Forged 312 22's, H&R 2" '98 BMW 740iL - ///E39 M5 6spd swap, fully built engine (sleeved, P&P, cams), 3.46 LSD, H&R Stage 2/Bilstein HD, Magnaflow 14816's '97 BMW 328ci - ///E36 M3 clutch & L/W flywheel, Z4///M 18's
	Appreciate 0 Quote

11-28-2017, 02:04 AM	#22
boots Curve Thrasher 623 Rep 3,773 Posts Drives: 2013 Bmw m5..White/Blk. Join Date: Nov 2012 Location: Cypress Tx iTrader: (0)	James when I had a misfire I had replaced my plugs and injectors. It was time to anyway. Problem solved. But now it's time to go to a colder plug. My mileage is 115k now. __________________ 2013 Bmw M5-Alpine White/Black-Oem gloss blk powder coated wheels-Expel clear bra-35% tint-Rpi Gtm Exhaust-Rpi Downpipes-Rpi Scoops-Halim Cazimi Performance Tune-KwV3 coilovers Country run
	Appreciate 0 Quote

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search