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X3 F25 (2011 - current)
The latest X3 brings added style and new features to the BMW's mid-sized SUV. Talk about the BMW F25 X3 with other X3 owners now!

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  #1  
Old 05-13-2016, 11:12 AM
Z4530i Z4530i is offline
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Spark plug change

Getting ready to change the spark plugs on my wife's 2012 X3 3.5 xdrive. Got everything figured out except how to remove the air duck blocking access to the last two plugs. I can remove the air duct along side of the engine that goes into this duck. It feels like it's bolted down, but I can't see any fastners or bolts.
Thanks in advance for any help you can provide.
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  #2  
Old 05-13-2016, 12:35 PM
ejw2011 ejw2011 is offline
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Follow and give thanks to Mposter's guide:

http://x3.xbimmers.com/forums/showthread.php?t=1116486
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  #3  
Old 05-15-2016, 05:58 AM
Z4530i Z4530i is offline
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Thanks!
As a note on the spark plugs. Two Bosch plugs are offered; ZR5TPP33 and ZE5TPP33S. According to a Bosch technician, the "S" is an upgraded (newer) version (better ground). Both will work.
I bought "S" on Amazon for $12.41 from "B2C Auto parts". The "S" doesn't come up in search, but I emailed them (asked question) since they sell the non "S" plugs.
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Old 05-15-2016, 07:28 PM
fb88 fb88 is offline
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What's Amazon's direct link and how many miles is your car?
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  #5  
Old 06-07-2016, 03:13 PM
Z4530i Z4530i is offline
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Amazon link

Sorry I don't have the link handy, but if you contact the seller I listed, they will send you the link. The link didn't come up in an Amazon search.

To contact the seller, you can do a search of the spark plugs without the "s". The item should come with that seller. Open the sellers page to the non "s" plug, and there will be a button on there somewhere to contact the seller.

Good luck.

2012 X3 3.5xdrive has a little over 56,000 miles. Dealer told me the change is due at 60,000. I was going to do it anyway. Just did my 2007 Z4 3.0 si roadster (54,000 miles), and it was a lot easier.

Last edited by Z4530i; 06-07-2016 at 03:16 PM. Reason: Additional information
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  #6  
Old 06-12-2016, 02:37 AM
driveby88 driveby88 is offline
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It does not take long to replace. it should take 1.5 hours to replace all 6 plugs, the gaps is most important for fuel efficiency and will notice in your fuel consumption right away. Maintenance is the key for keeping your ride longer.
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Old 06-28-2016, 06:17 AM
driveby88 driveby88 is offline
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the last two plugs, in order to remove, you must remove the two 10 mm bolts of the air duct, make sure spark plug is tight so you don't loose the spark plug inside the engine. Good Luck!
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  #8  
Old 06-28-2016, 06:48 AM
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gfeiner gfeiner is offline
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Quote:
Originally Posted by driveby88 View Post
It does not take long to replace. it should take 1.5 hours to replace all 6 plugs, the gaps is most important for fuel efficiency and will notice in your fuel consumption right away. Maintenance is the key for keeping your ride longer.

Does anyone know if genuine bmw-branded plugs are are already gapped when you buy them?
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  #9  
Old 06-28-2016, 10:29 AM
dukedkt442 dukedkt442 is online now
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They should be, but never install a plug with a gap that you haven't measured.
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Old 06-28-2016, 10:58 AM
rayms69 rayms69 is online now
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Absolutely
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  #11  
Old 07-02-2016, 03:32 PM
fb88 fb88 is offline
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Doh, I bought the ZE5TPP33S plugs but when it came it only had 4 and I needed 6. Re-checked page and it does only indicate 4, not sure how I missed it. Went to dealer and got 2 OEMs (w/bmwcca discount).
Changed at 86k miles, and I could not locate my bad injector that's causing the misfire (I bought 3 new injectors) so I am assuming the spark plug change fixed the issue.
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