The ULTIMATE BMW Ignition Coil Guide | 2003 & Newer

[@ArtemDzhadzha]

I put Eldor coils as soon as they appeared on the market instead of proven at that time Delphi and was doubting I made the right decision until this video. This is the most useful video for those who are looking for new coils for tuned n54/55 etc.

[@adriangutierrez8177]

Some guy that builds BMW engines on instagram has a 135i with over 900whp. He swears by Delphi

[@szemijoe4586]

n53???

[@prestonworden9811]

I love the fact that you kept it twin nice to see not everyone isn’t trying to go single turbo

[@CRodx]

I just put Eldor coils in my F30 328i with 75k and what a difference. The engine is noticeably quieter and idles very smooth now. Thank you for your hard work on your videos and Congrats on the new M340i.

[@s9811929]

Hi Chris, which Eldor coils did you purchase? I have the same car as yours, just wanna make sure i'm buying the right coils.

[@christiang2194]

The marking on the Eldor coil specifies the material for recycling reasons. PBT = polybutylene terephthalate; GF = glass fiber; 30 = 30 % glass fibers BTW love your videos

[@ToeNailBreaker]

1:38 Correction (in the time this video was posted), BMW never moved from Bosch to Delphie for the N54. It was the N54 community that discovered the Delphie coils from the N55 and M3 are compatible with the N54 and started recommending it. BMW officially went from Bosch to "Eldor" coils which is the one you pointed to at the end as the better coil (agree 100%). Then they moved from Eldor to Delphie(cheaper). They went backwards technically. Eldor coils are the better OE pencil style coil for this platofrm.

[@killaforrilla5639]

Seattle mini is selling the GN10571 delphie coil as the oem replacement for a 2008 mini cooper s

[@Whatever-ld4vq]

I just installed the Eldor's on my 2010 528Xi. So far so good. Many sites say that the Eldors are not compatible with the N52 motor but they seem to be working well on my car. I have 150k miles and was having a miss in cylinder 6 so decided to replace plugs and coils. I used NGK Ruthenium plugs.

[@donsirsimon]

Just changed mine from original bosch to delphi. 66k miles Z4 N54. Did not have any codes but wasnt running totally right... a bit ruff+ like some power missing... but it drove and no codes or CEL. After replacing coils... instant start, rock solid idle, lot smoother drive, more power down low ( noticed i had started to downshift often when accelerating, now pulls nicely from low rpm). Still felt power missing in boost, so did reset my ECU for adaptations reset. That made the difference. Pulls nicely now. Cobb Stage 1 93 tune otherwise stock car. New properly gapped one step colder iridium plugs were installed a few months before the coils. I had actually postponed my coils purchase hoping to get a code or check engine light as a sign to do the change, but it never came. Just felt wierd. So If no codes but still feels a bit wierd, probably just change the coils. Not that expensive. Got delphis 124 eur online. Did consider Eldors, but they are hard to get in my area, probably would have had to buy them from dealer for double the cost. Webshops dont offer Eldor at all here and even FCPEuro its delphi or BMW OEM.

[@DLGNT]

Do you remember which plugs you were running?

[@RashawMedia]

Having a thicker tip is always a good thing 🤣

[@BIMMERZEITT]

Great video, wish I saw this before buying a full set of new Bosch coils! My 07 335i with 182k had 5 original Bosch coils dated 2008 and one replacement Delphi coil installed by BMW dealer. I bought through FCP euro so free replacements for life if they fail. Next time I’ll look for Eldor.

[@EYES2CU]

You have just saved me some money and solved a problem

[@damienrodriguez3288]

Bro, I was searching for new coils for my 2003 z4 and e36. Thanks for the tip. Didn’t think when I came across the eldors that they would be better than the rest, but you have convinced me. It’s nice to hear Recomendation from someone who has done some trials. Thanks. Subscribed I am 👍🏻

[@nathanpartridge3565]

Which coils did you go with?

[@gnicevids]

The Delphi will hold it a very good coil. Some are running like 600hp's and up on Delhi

[@funkmastertraf]

I'm running 625hp on the Delphi's, no worries

[@CheckYourPremises]

@@funkmastertraf You answered my question! lol

[@deplorabledave1048]

I have heard that. I also heard that ELDOR >DELPHI when it comes to BMW's. I can buy 6 Eldors for my E46 M3 for $145 shipped. Pretty much the same price as Delphi.

[@sammyjames1929]

Been running eldor coils for 6 months now in my 08 n54 zero issuses. I bought through fcpeuro so warranty for life

[@machtschnell7452]

Eldor it is, then Well presented.

[@gigel99324]

Eldor also makes audi's high performance ones

[@reginald8405]

Those new turbos are powerful (13:07). Shifts are amazing with the xHP upgrade as well. Thanks for the video.

[@VehicularDIY]

Yeah thats at around 21 psi with super conservative timing. Thanks

[@deplorabledave1048]

I had to sub after watching this video. The BEST video on BMW coils on You Tube. Well done. I have an NA Dyno tuned very quick 2005 E46 M3 with a LOT of tweaks and mods. However, NO BOOST. I am Soooo jelly of your boost. Getting a built motor and E85 flex fuel boosted motor with all the other support items and mods is on my bucket list. It's minimum $40K to really do it up right with an AEM Infinity ECU, plasma coils, 1000 RWHP axles, Fuel system that wont starve on the track because of G forces etc etc etc. Then to TUNE it all so you have a really effective traction control and variable boost depending on amount of E85 in your tank. I NEED about 800 RWHP on pure E85 and 25 to 30lbs of boost. Anything less just will not do. But 500 plus with TURBO boost is nice. 500 RWHP with a super charger on my S54 motor is NOT worth the money. No torque. Terrible dyno curves. Its gotta be turbo on 3.2 liter 6cylcnder. Besides, I HATE the super charger whine with a passion. I LOVE turbo whooshes and pops!!!!

[@ckegman6103]

You make best the BMW related content. Just bought some eldors for my bimmer. Keep up the top notch DIY.....

[@loekfelten548]

Got my coils from ECS tuning for My N46 engine. They have the N54 specs. Fitment is fine and so far they feel very good.

[@youbarajsharma7603]

Hi Loek, I also have a N46. BOSCH bit failed twice in last 10K kilometers, I was planning to change to Delphi/Eldor was not sure if it fits, as none of the seller lists N46 as a compatible engine (amazon/ebay). Which one did you replace with?

[@loekfelten548]

Youbaraj Sharma, hi, I ordered mine from ECS in the USA. Straight fit on my N46B20 and performing well. For N54 motor to be exact.

[@thestatesman7405]

Very informative.. This video helps me a lot.. Keep doing the great work..

[@harrisj2278]

I’m just coming across this video now I wish I had seen this last week when I bought oem Bosch coils for my N52 330i I’m wondering if there’s any benefit to upgrading to Eldor coils even for an N52 not as far as power but perhaps it’s safe to assume they would last longer. Excellent videos best bmw content on KZbin by far.

[@JR-si6ef]

I used eldors on my single turbo .. e40 mix with a conservative tune pushing 540 .. no misfires at all

[@BimmerM5e39]

What gap, which plugs?

[@juancarlosathome101]

YOU... ARE... AMAZING!!!! First of all, I'm TOTALLY nerding out on this!!! I am such a stickler when it comes to attempting to get the best of the best for my car--I'm looking to do a full maintenance overhaul on it before dyno-tuned by Jordan @ RK... I'm almost at 60k miles (2011 E92 335i M-Sport-N55) and coils are one of the things that I wanted to replace. Now I know which ones I'm getting!! A humble request: PLEEEEEEEEASE do a comparable injector video for us N55 folks!!! My target is a reliable 500whp tune from RK with a Pur Stage 2 turbo upgrade (all other relevant peripherals have been upgraded as well, except for my stock clutch--manual transmission--and I don't want to do that until I have to because $$$$$$$). I want to get the best possible injector for the car to enhance performance and reliability as much as I can. Thank you for what you do man--DO NOT STOP!!! Your vids and the depth of detail you cover are an absolute gold mine for anyone who is serious about taking care of their Bimmer. You are the MAN!!!

[@VehicularDIY]

Thanks for the kind words! Maybe I should build the X5 lol.

[@nickolascain2994]

I think that would help ya with even more content down the road. I don't believe there is any way around the bench flashing the N55 ECU first to unlock it ? I have not looked into it much as i dont have a N55 haha. Dont see many get in depth with bmw repairs like you. So I think it would work well!

[@nickolascain2994]

Nice interesting video as always. I'm actually doing valve cover gasket and swapping to NGK 97506 tonight. Current one step colder plugs looked like they could be getting a bit warm lol. Florida heat etc these 2 step colder plugs should do well. Getting close to where I want a custom tune from ken.Thanks for sharing man!

[@nickolascain2994]

@@JayDee-b5u worked great. Ended up going with bimmerlofe coils as well. Had a custom tune done by Trebila running full e85 and meth.

[@lubricator]

I just sold my 44,000 mile 2007 Z4M, which had no problems. My 2018 BMW R1200GS motorcycle's left coil is starting to cause a misfire and set off the check engine light. One new OEM coil from the dealer is $188. I found two used Eldon coils online for $112. I was unfamiliar with the brand and now after watching your video, finding they are OEM, I feel good about buying the nearly new Eldon coils from a licensed motorcycle dismantler. They came off a bike with 9,000 miles, my bike has 14,000 miles, so the Eldons that are on their way are fresher. Thank you from Sacramento for the education.

[@unlimitedoutdoors3307]

I’m curious of which spark plugs you’ve chosen to run?

[@alexnaoumov]

My car had a recall where they replaced the bosch ones with the delphi ones for free. I’m from Europe and I have an 118i with the N43 engine. Very nice video, thanks :)

[@danieltoth3152]

hi when was this called back? Because I also have an N43 engine in the car.

[@RidwanMaassarani]

Can the eldor work on a 2006 330i ? Production date: 09/15/2005...

[@Dustinsfishtanks]

Great videos all around.

[@bentremy]

Your videos are absolutely fantastic.

[@Kipitrl]

Have delphi fbo 23 psi meth custom tune e85 no missfires at all.. had a ton with the Bosch.. Going with precision rw when my new turbos arrive :)

[@BimmerM5e39]

How are the Delphi's holding up? I've been using eldors for about a year under 5k on them and with ngk 95770 at .020 from .022 but getting misfire's fbo e50 custom tuned. Im just under the impression that these pencil style coils don't last more than 8 months of abuse and are a headache waste of money.

[@Kipitrl]

@@BimmerM5e39 havent had a misfire issue since I installed the delphi its been pretty nice. I am using the NGK Laser Iridium replacement plugs that are two steps colder than stock N54 plugs also set the gap to 0.020" Just finished installing upgraded turbos and helix will see how they like the extra whp.

[@joshuasherwain]

Thanks for your great indepth video about the different coils. I think it will definitely be the eldor for me for my bmw 4 series.

[@THEGAMINGHELP101]

BMW guy "It should get you to a good 100K miles, pretty reliable" Toyota starts laughing

[@machtschnell7452]

But the fast Toyota guys now have the BMW engine.

[@SteveWeltman]

Toyota makes some great cars too. Many are incredibly reliable for well over 100k mi. But not the best handling; they’re mostly designed for an isolating quiet, sedate ride, perfect for the commuter. Not so much for a performance enthusiast

[@myxipitlik2]

Very informative and helpful, Thank you for making this video

[@jabberwockytdi8901]

People always forget there are 2 reasons why manufacturers change part nos / suppliers, either it can be an engineering upgrade or it can be for a better purchase price , don't assume newer version is better .....

[@EthanCommins888]

I bought the Light grey Bosch coils from FCP Euro. They also sell the black Bosch coils. I wonder if the light grey Bosch coils are a revision of the black ones

[@florianradu7750]

I got those also, work like a charm. On bimmer proffs it say to stay away from the Delphi ones for N43-53

[@alethepilot]

@@florianradu7750 do they still work after 1 year?

[@florianradu7750]

@@alethepilot yes, no problems in 12k km.

[@alethepilot]

@@florianradu7750 thanks mate! Cheers!

[@roymoorman5990]

Note: their are different connector standards. All within the three-pin triangular outer shape but there is a little "dam" inside that can be either in the middle or like 1/3 towards the edge. I changed coils to delphi together with the right spark plugs but still have hesitation in cold wet weather at startup. Haven't tried the Eldor ones yet.

[@Wergrun]

Ordered me some of them neat looking Dinan coils in red, not 3 coils in my car are the same brand currently, should’ve done this when i first got my car. Got two cylinders per brand lol

[@npharkes]

Any logs/data to support your claims? I run 500whp with meth injection on Bosch without any apparent issues.

[@Trump-The-GREATEST]

Whished FCPeuro carried these cause they would be great with Lifetime warranty. The OE Bosh & Delphi are a hit or miss as many are getting defected ones and seems QC is messing up!

[@abelucious]

my Bosch coils never misfired with stage 2 MHD tune ,stage 2 turbos , but i just ordered these Eldors after watching the video .

[@napoli.4life]

hey how are the Eldors , i got some shitty bosch im changing out . delphi or eldors???

[@abelucious]

@@napoli.4life they’ve been good , make sure you gap the spark plugs properly if they’re not pre gapped because that would cause a misfire , but Eldors are working properly with my new custom tune and I’m pushing 21 psi boost with no problems, hybrid turbos fbo 94 octane pump gas

[@jjung2005]

Bought Eldor!! Thank you!!!

[@MrLaloman18]

When I asked FCPeuro why they haven't upgraded their BMW Delphi pencil style coils to the latest and better upgrade ELDOR coils for the F10 owners and n54/n55 engines, this is what they said: "Eldor coils are not recommended for the N55 engine, so we do not list them for the BMW N55 applications. If you still want to buy them the part number is 12138657273."

[@PartiBuoy]

Most of my mistakes were not torquing plugs. had some coils back themselves out. So I torqued them and have stuck to delphi only and stock plugs even going even colder next

[@scotth7686]

Great video. I think I found the answer to my question about whether the same coil can be used in many different motors. It sounds like those same Eldor coils used in 2015+ models and your E9x 335 will work perfectly fine in a S85 motor, correct? Edit: After more research I’m more confused. I thought these BMW coils had internal igniters because I thought all coils with 3 terminals had internal igniters. Now I’m reading that these coils you’re talking about don’t have internal igniters.

[@toto14101]

The eldors of this links will function on my 2011 n55?? Becouse Ebay advice that they would not work :/

[@waveyboyviCC6]

Great vid .. spark plugs next ?

[@VehicularDIY]

Just did them actually, NGK 97506s

[@brianl5607]

Informative and clear. Thank you

[@craigmclean5868]

Bummer I just ordered the Bosch coils for my sons BMW. For a few bucks more I could have grabbed the Delphi coils.

[@JorgeChavez-eg1lc]

My friend. I have a 2009 BMW 128i with N51 engine 3.0 i change new coils the past winter and new spark plugs and new fuel injectors. was driving nice. just for a cople months. And now i have problems with coil number 1 and number 5. Do you thing this Eldor 12138657273 fits the N51 or its just for the N54 engine.?

[@christianr.137]

Need new spark plugs and coils due to valve cover gasket leak😬

[@mty3606]

Was going to get the Delphi coils for my n52 but apparently not all of them fit correctly on the n52 due to fitmit issues with the clip. Getting a set of Bosh's for a perfect fit and the originals lasted 100k so they can't be too bad,.

[@jameslandry2959]

Great info, change my mind after video

[@joelr7270]

I have a 328i with a n52 engine. I looked up on realoem to see if the Eldor coils part # (12138657273) was compatible with my engine but it only states the boshe/DELPHI part # (12138616153). The N54 can use both part # 12138657273 & 12138616153 so has anyone tried to run the Eldor on a n52 engine.

[@gabrielangelo23]

Joel R I spoke to the seller in the link and they said that these will work for my car which is an 08 328i n52 sedan. The link is for the n54, just put in vehicle specs and find the coil that fits your specific vehicle

[@justinrobert6573]

Another great video. Thank you!

[@YZFMANIAC08]

I got the Bosch coils for my 2009 e87. These coils seem to fail within 15.000 to 30.000 km’s 🥴

[@sirius6beta]

May i ask - does the Eldor coil fit into a BMW X5 e53 4.8iS? The OEM list denied it but that doesn't actually mean anything out of my experiance.

[@cmcevill]

thankyou bought the coils using your link

[@aslandogar7779]

car running OK?

[@cmcevill]

@@aslandogar7779 yes, but I had found out that I needed to replace the mosfets on my msd80. This was the same code that I was getting prior to replacing the mosfets and the coils. I found a V..DYI video on that 30BA code and did the soldering my self. for $50 for all parts I saved myself $1300 to replace the DME. The car has been runny really strong for about 2 weeks now.

[@phenyothabe913]

When my OEM Delphi's went at 60k miles had them replaced with Bosch aftermarket coil packs they didn't last more than 2k Miles had to go back to OEM stuff...F20 118i

[@tecitez16]

I've had misfires running eldor coils with NGK 97506 gapped at 20. The car is running stg2 pure turbos fbo with custom tune. Hopefully you'll have better luck than me.

[@VehicularDIY]

Yeah I'll be putting back my upgraded coils shortly anyway.

[@PHY51C15T]

Probably wasn't the coil packs

[@tomasprieto9746]

Excellent video

[@Icepressa]

The cheap and the old Work better For me then the delphi ones come apart and then when You put them back together They dont want to work, For somebody that plays with his car alot i dont recommend the Delphi ones I dont know about the Eldor ones but I like the design! i havent tried those but ive also had good results with the grey bosch ones with high HP application!

[@cportugal25]

Hello, I have a 2010 BMW X5 and although I don't race, I like the power and smoothness. What brand would you recommend?

[@Bensuken]

What would be the best coil pack for my 2004 bmw x3? It has 104k miles

[@sean58271]

Very good video, thank you!!

[@sparkey196]

I bought the NGK U5039 48147 ones as they were a bit cheaper. Weighed in at 220g. The outer silicone sheath and top plastic cap is identical to the Bosch but the whole thing is 10g lighter. Made in China - was hoping for Japan.

[@andynba1221]

Intermotor, try that one manufacturer by SMP they do BMW and almost all cars around ! Nice video !

[@kylerumsey8942]

Please tell me more about the intermotor coils. These are local to me. Are they any good?

[@zikroulah]

Hi, thanks a lot for the video, it really help. looking coil for my E90 328i xdrive, i heard about HP Ignition coil! need advice as comparison with eldor coils.

[@kNiFeNuTt]

Love your videos! What spark plugs are you using?

[@VehicularDIY]

Thanks! I'm running NGK plugs that are two steps colder than stock.

[@dubwizezt]

I have been running Bosh ones for 30k kilometers on my n54 550bhp and no misfires still. I drive winter time too.

[@s2syed]

Same, Bosch ones are fine for stock turbos on pump gas

[@dubwizezt]

@@s2syed im on tth stage 2 ones but on vpower. Thwy work no problem.

[@Linoge279]

I use NGK coil, no issue so far.

[@zacharyg1260]

This is great information, however I've been looking on rock auto for parts for my 03 530i and it's mentioning external lams.. 2 or 3 and I have no idea what a lam is nor can I discern any difference between the pictures alone. Please help!

[@abumannocchi]

If your a delvery driver with one should you use. Cause I like the bosh coil from the 2006 bmw x1s I use on x3 cause I have 15 spares but the 2016 oem is nice and expensive got a few from junk yard cars.

[@iannicholson9705]

So for the N20 with 60,000 miles I ordererd Bosch coils before I saw this video Are the Bosch coils ok For a daily NON performance type owner driver ?

[@TelstarTAK]

I have a 2008 E90 N43 318i 2.0 litre, approaching 125,000 miles. Have just installed NGK plugs, replacing Bosch. The existing original coils are also Bosch. In the UK, recommendation for coils seems to be Delphi, but would Eldor coils be better? Many thanks.

[@andreyzozulya1181]

Which recommends for Bmw E 87 N45B16A ignition coil?Bosch or Ngk or something another?

[@bpet2237]

Are you sure this fits N55? I followed your link and entered my 2017 M2 N55 and it said it does not fit.

[@natking1u1z99]

Are the eldor coils compatible with the n52 engine?

[@Whatever-ld4vq]

yes

[@jehsautosalon]

How about with s54? Thanks

[@GregPentecost]

Can any of these coils be used in pretty much any BMW from 2003-on? Can I use the Eldor coils on my 2011 328i AND my 2011 535i? Would it be the same part number? Thank you for your help!

[@Ivancortes2014]

so if im trying to upgrade the coils on my 535i f10 what will the part number be for the eldor coils ?

[@SpeedCultureStudios]

Disappointed that I saw this a few weeks too late. Replaced all my coils with OE to address maintenance issues on my new project n54, but planning on increasing power in the coming weeks, I should have jumped right to Eldor.

[@keanusalimi1750]

I'm about to drop the ball on a set of 6 coils - 2009 n52 128i, should i go for delphi's or Eldors?

[@delnish1666]

Which coil would you recommend for 2010 528i bmw 6 cyl

[@vintagetrk]

So if the Eldor coils work good in a tuned N54 they should work Great in my 2010 BMW Z4 35i Twin turbo N54 right?

[@JSpool1]

There’s many factors to a “misfire” . 1. Did you change coils before the mosfets? Mosfets are what can’t hold the spark or load whatever term you wanna use 2. Spark plug gap.

[@VehicularDIY]

Yeah more ethanol would need a higher plug gap and strong coils. I changed the mosfets after putting in my spool performance coils. I have an MSD81 ready to go in, I'll be making a video on it.

[@atomicdetailsoc]

i have an 07 525i so i probably have a bosch ? im at 117k miles but i have no idea if they changed the coils. wondering if u should upgrade to the 3rd or 4th ones in your videos i just swapped the gasket on the valve cover tho it was starting to smell bad in the cabin

[@lucyferr5571]

Would this be a better option for a stock M2 or Delphi would be fine?

[@rightcoastimports]

not sure if this has been answered but I have an early 2006 model E91 with the connector tab on the left, not the center. does eldor make coils for the older style connector as well? or do you have a recommendation? id rather not change the connectors or the harness if possible.

[@zmanphx]

My 07 335i with over 100k miles still on OEM coils. Only misfire was with worn plugs. I am running AP stage one tune 14psi . Boost pressure requires more energy from the coil. I guess the only way to test these coils is with high boost applications. Will Elder fit the N54 if my OEM start failing?

[@Oghy931]

what do u think about delphi 10210-12b1 for 400hp?

[@jamiestanley8774]

Hi e60 525i n52b25 0/8 . Check light ,obd2, missfire cyln #6. Bosch ign coils. Swapd #6 for #2 . No diff . Swapd same ngk plugs , no diff obd still #6 missfire.nxt move! #6 injector ,check and clean . Any thorts on next move .?

[@Darkrose_n63tu]

I’m a tuned 650i with 650 horses and I’m misfiring so I put all ngk spark plugs and car quest coils and my car still misfires and it says injection off is it because the coils aren’t good to handle that power ?

[@papi7rx7]

Would the Eldor ignition coils be a good upgrade for a 2010 BMW 328i Xdrive sedan non-turbo? Currently running delphis. Thanks

[@sipmeister3611]

Was curious I have to replace a single Bosch coil but Amazon claims that their is different sizes how would I know what size to get.

[@ramonmagana2848]

I just installed eldor coils and it fixed the little stagger in rpms left after a new valve cover gasket fixed a crazy misfire, at idle, but the car feels crazy sluggish, is there any break in period? The spark plugs have less than 300 miles on them. Help 😩

[@lavon_don9337]

Im looking to replace my coils and plugs for my 2014 F15, did you install the ELDOR ignition coils in the F15? what plugs are you running also?

[@SicSemperBeats]

wonder how the new dinan coils stack up

[@walkereurosport944]

Very informative 😌👌

[@Shabbe02]

NGK or Delphi which one should i buy?

[@mikimiki195]

I just had misfire on my 2013 N63 cylinder 1 I swap 1 and 2 than my cylinder 2 misfire that concluded I have bad coil I ordered form FCP for $26👍🏻

[@jayrocksfire]

Hey man wondering what you think about the bavauto high performance coils?