Ignition Coil Part #'s

conrad325i · 12-13-2013, 06:18 PM

Changing a bad ignition coil and i noticed that the new one would not plug back up to the harness. Turns out there's a little ridge on the coil that acts as a 'key' and the one on my new coil is different than the other 5 in the car. Did bav auto send me the wrong part or will it still work if i cut the little tab off and just plug it in?

BMW OEM #
0 221 504 463

Bosch #
0 221 504 470

BTW even the oem coils say "Bosch" on them b/c they're the oem supplier, but the only physical/visible difference is the little key/tab/mthrfckr.

Anyone else encounter this issue? Any help is appreciable.

conrad325i · 12-13-2013, 07:20 PM

::UPDATE::
I took a razor blade and drill bit and removed the little tab. Car runs awesome.

AlexMilwaukee · 12-14-2013, 02:36 PM

Good work! I just bought the Bosch, so I don't know exactly. I guess I would recommend going w/ that next time. What was the price difference or reason you went w/ the other one?

conrad325i · 12-15-2013, 01:41 PM

This was the Bosch that I bought. Like it was so annoying. Bav Auto said it was the correct fitment...

mimik · 04-28-2014, 10:24 PM

Hey Conrad, where exactly is the marker? I'm
Having the same problems you did initially after installing the coil. Thanks

zsupreme · 07-16-2014, 02:44 PM

DO all ignition coils need to be replaced or just the 1 thats not functioning?

Thinking bout changing my spark plugs and doing the coil at the same time

joe__ · 07-21-2014, 09:54 PM

Quote:

Originally Posted by zsupreme

DO all ignition coils need to be replaced or just the 1 thats not functioning?

Thinking bout changing my spark plugs and doing the coil at the same time

Just the bad one. Although many people had others go shortly thereafter including myself. If you don't mind taking it apart multiple times then you can just replace the bad one.

mweisdorfer · 07-24-2014, 08:46 PM

Quote:

Originally Posted by zsupreme

DO all ignition coils need to be replaced or just the 1 thats not functioning?

Thinking bout changing my spark plugs and doing the coil at the same time

Its usually a good idea to change out the coils at around 100k, if you planning on running it and then trading it in at about 200k. Plugs on an N54 are only good for about 45k. On an N52 they might last 100k but don't bet on it. Probably 50-75k is more reasonable.

Bosch is the OEM supplier. You can pay extra $$$$ for them to say BMW on them of you want, but they are the exact same plug and coil.

12-13-2013, 06:18 PM	#1
conrad325i Private First Class 12 Rep 162 Posts Drives: 2008 335i Join Date: Aug 2011 Location: Knoxville, TN iTrader: (0)	Ignition Coil Part #'s Changing a bad ignition coil and i noticed that the new one would not plug back up to the harness. Turns out there's a little ridge on the coil that acts as a 'key' and the one on my new coil is different than the other 5 in the car. Did bav auto send me the wrong part or will it still work if i cut the little tab off and just plug it in? BMW OEM # 0 221 504 463 Bosch # 0 221 504 470 BTW even the oem coils say "Bosch" on them b/c they're the oem supplier, but the only physical/visible difference is the little key/tab/mthrfckr. Anyone else encounter this issue? Any help is appreciable. __________________ \| H&R Coilovers \|ApexArc-8s\| M3 ControlArms \| RogueTransMounts \| AFEDualCone \| ERChargePipe \| TialBOV \| ETSIntercooler \| 335isClutch \| BMSCatchCan \| UUC EVO3 SSK \| MichelinPSS \| CobbAP \| JB4 \|
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12-13-2013, 07:20 PM	#2
conrad325i Private First Class 12 Rep 162 Posts Drives: 2008 335i Join Date: Aug 2011 Location: Knoxville, TN iTrader: (0)	::UPDATE:: I took a razor blade and drill bit and removed the little tab. Car runs awesome. __________________ \| H&R Coilovers \|ApexArc-8s\| M3 ControlArms \| RogueTransMounts \| AFEDualCone \| ERChargePipe \| TialBOV \| ETSIntercooler \| 335isClutch \| BMSCatchCan \| UUC EVO3 SSK \| MichelinPSS \| CobbAP \| JB4 \|
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12-14-2013, 02:36 PM	#3
AlexMilwaukee First Lieutenant 16 Rep 364 Posts Drives: 2008 AW Saddle Brown 335i E92 Join Date: Aug 2013 Location: Milwaukee iTrader: (0) Garage List 2008 BMW 335i [0.00]	Good work! I just bought the Bosch, so I don't know exactly. I guess I would recommend going w/ that next time. What was the price difference or reason you went w/ the other one?
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12-15-2013, 01:41 PM	#4
conrad325i Private First Class 12 Rep 162 Posts Drives: 2008 335i Join Date: Aug 2011 Location: Knoxville, TN iTrader: (0)	This was the Bosch that I bought. Like it was so annoying. Bav Auto said it was the correct fitment... __________________ \| H&R Coilovers \|ApexArc-8s\| M3 ControlArms \| RogueTransMounts \| AFEDualCone \| ERChargePipe \| TialBOV \| ETSIntercooler \| 335isClutch \| BMSCatchCan \| UUC EVO3 SSK \| MichelinPSS \| CobbAP \| JB4 \|
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04-28-2014, 10:24 PM	#5
mimik Private First Class 8 Rep 150 Posts Drives: 2006 BMW 325xi Blue Monaco Join Date: Sep 2009 Location: Montreal iTrader: (0)	Hey Conrad, where exactly is the marker? I'm Having the same problems you did initially after installing the coil. Thanks
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07-16-2014, 02:44 PM	#6
zsupreme Knowledge Reigns Supreme 4 Rep 63 Posts Drives: 2007 328i Join Date: Aug 2012 Location: Bay Area, CA iTrader: (0)	DO all ignition coils need to be replaced or just the 1 thats not functioning? Thinking bout changing my spark plugs and doing the coil at the same time
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