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BMW 3-Series (E90 E92) Forum
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Bosch vs. BMW ZGR6STE2 Spark Plugs: Essentially No Difference (Photos)
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02-06-2013, 06:43 PM | #24 | ||
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No they don't! BMW says to replace the N54/N55 plugs at 45K miles. NA engines call for new spark plugs at 100K miles. Bellow is a picture of the official BMW AG decall that cars in Germany get when they have a PPK2 installed... The sign says first change plugs at 67K kms, then every 60K kms. PPK2 installed. Quote:
PLUS... I have read a few misfire threads on the e90forum after replacing plugs and coils... only to find out the problem was a bad OEM spark plug. Maybe this DIY will help some of you guys out. 135i Spark Plug replacement DIY... http://www.1addicts.com/forums/showthread.php?t=602804 Also note that N54 plugs are different from N55 spark plugs. Dackel
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02-07-2013, 07:27 PM | #25 |
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I have a slight misfire and just got these. They will be going in next Saturday, I'll give you all an update.
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02-08-2013, 09:44 AM | #27 |
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I don't believe the OEM plugs to be the exact same as what BMW sells. To each his own.
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02-08-2013, 04:41 PM | #28 |
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mee i had replaced since 35 000 km by bosh, i do it myself and no problem...(when my car had 95 000 km)
today i have 131 000 km Last edited by kiteboy; 02-08-2013 at 04:46 PM.. |
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02-08-2013, 06:09 PM | #29 | |
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BTW a number of auto parts places have the Bosch branded plugs for &12/13 each.
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02-09-2013, 03:55 AM | #30 | |
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That is about the same price you can buy them at the dealer or from any one of the forum sponsors here. Given the choice I would rather use an OE part over a OEM.
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02-09-2013, 05:53 AM | #31 |
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Interesting about the 3 or 4 forum posts. There are 11 second N54's running on the Bosch plug with out any misfire issues so I would think that the antidotal evidence tends to either washout or suite what anyone chooses to believe. They don't even add a B or something to the part number to distinguish it from their own branded plugs.
Regarding the pricing you gave a +1 to a post above at $111/91 for BMW branded Bosch plugs. Its not a big deal but you can buy a set of Bosch brand for $69. I would think without hard evidence to the contrary why spend extra for a different label on the exact same manufactures part number?
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06-16-2013, 02:13 PM | #32 |
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look at the center electrode in the middle of the prongs.. looks like the bmw ones are slightly rounded while the bosch oem ones are very squared.. I think bmw has its own specifications.
you think you can go buy a denso spark plug and a HKS spark plug made by denso and expect the same? my opinion..but the center electrode of the plugs are clearly different |
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07-17-2014, 01:48 AM | #33 | |
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07-17-2014, 04:17 PM | #36 | |
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Dackel
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07-17-2014, 04:35 PM | #37 |
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Used both Bosch and OEM BMW with a Cobb tune.
No difference in performance with stage 1 - aggressive. Also at 25-30K either the BMW or Bosch plugs should be swapped out if using a "real" tune.
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07-17-2014, 04:55 PM | #38 |
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Changed my plugs at 40k from oem to Bosch ZGR. Have couple hundred miles on the plugs and have rough cold start and misfire in 2 cylinders. I will be switching back to oem. I never had any problems running stage 1+ with oem
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07-17-2014, 04:58 PM | #39 |
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So strange people are getting mixed results. In preparation for a tune removed the original OEM plugs on my 40k mi '10 and switched to BOSCH's and 2k miles later on Stg 2 FMIC+ still running strong w/o a single misfire.
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07-17-2014, 06:12 PM | #40 |
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And therefore your recommendation would be to stick to BMW plugs? There may be a difference now it seems, but I guess the bigger question is "Does it matter?"
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07-17-2014, 06:19 PM | #41 | |
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IMO its not worth taking a risk with aftermarket plugs to save a few bucks. Then again... many guys here use the Bosch(aftermarket) plugs with no issues. But some people do have problems with them. In my mind its not worth taking a chance. I would rather use parts thru my dealer.
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07-18-2014, 04:59 AM | #42 | |
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07-18-2014, 09:08 AM | #44 |
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I've been running Bosch ZGR6STE2's off amazon, replaced every 10k, E85 tunes. Never a problem. I ran the NGK's for a while and went back.
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