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      08-13-2012, 03:00 AM   #1
HeavyRightFoot
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335i - Changing coil packs

Anyone have a DIY or any links to one covering how to change coil packs?

I have a misfire on one and want to swap it to another cylinder to see if it is the coil pack that is dodgy. I've tried searching and can't seem find anything definitive.

Thanks
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      08-13-2012, 09:33 AM   #2
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changed 1 on a 320i fairly straight forward remove cover,unclip plug pull hard on coilpack
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      08-13-2012, 10:28 AM   #3
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Here you go mate: http://www.e90post.com/forums/showth...highlight=coil

This is a DIY to change the spark plugs, but you need to remove the coils to do that anyway
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      08-13-2012, 02:21 PM   #4
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Thanks for that, but any info on:

Remove the microfilter
Remove the cowling

cheers
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      08-13-2012, 03:50 PM   #5
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Quote:
Originally Posted by HeavyRightFoot View Post
Thanks for that, but any info on:

Remove the microfilter
Remove the cowling

cheers
Try the first part of this: http://www.e90post.com/forums/showthread.php?t=658985

Dead easy once you've done it the first time.
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      08-14-2012, 12:38 AM   #6
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Excellent!

Thanks all
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      08-26-2012, 03:56 PM   #7
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Got my coil packs swapped over, looks like I do have a dodgy one.

Anyone know the best place to buy one?
I've seen a part on bmminiparts.com (part no 12 13 7571643) which is a bosch part but not sure if it's the right one. Anyone able to shed some light?
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      08-26-2012, 04:15 PM   #8
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Eurocarparts were cheapest when I bought mine..
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      08-26-2012, 04:24 PM   #9
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How much if i were to change all of them?

and how many coil packs would i need?...6?...

if its not too much...might change them and the spark plugs, if it helps my car with the cobb aggressive map...
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      08-26-2012, 04:27 PM   #10
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Cheers mate, just had a look at the bosch ones they sell. Do you know if it is the same one as the dealers?
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      08-26-2012, 04:49 PM   #11
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Quote:
Originally Posted by zltm089 View Post
How much if i were to change all of them?

and how many coil packs would i need?...6?...

if its not too much...might change them and the spark plugs, if it helps my car with the cobb aggressive map...
Looks like they average about 30 - 40 each and 6 needed so 180 - 240 for all 6.
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      08-27-2012, 02:52 AM   #12
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I got mine from eurocarparts, with 30% discount worked out at £25 ea.
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