03-15-2017, 01:19 PM | #2 |
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Remove engine cover (may have to pull cowl first). Unplug coil packs and remove, remove plug, reinstall coil packs.
Not sure what engine you have, but search on the 3 series forums...they'll have both the N55 and N20 DIYs....but it's very straight forward.
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'02 S54 M3 (500/500 GC/Koni)
'08 N54 135 (JB4, DCI, BMW PS/Bilstein B6s, H&R M3 FSB, Strongflex FCABs) '14 N55 X1 (JB4, BMS DP, BMS Intake, Alpina TCU reflash, H&R Sports, Bilstein B6s, E93 M3 RSB, Strongflex FCABs, baby seat) '08 N54 535xi touring (Bilstein B6s, Downpipes, MHD tune, baby seat) |
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03-15-2017, 02:53 PM | #4 |
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This might be helpful.
https://www.youtube.com/watch?v=r68aNUBYUnE Make sure you have a thin walled socket. The last plug might require removal of the plastic panel for easier access. |
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03-15-2017, 03:12 PM | #5 |
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Just did this last month.
You have to remove the cowl to get started. There are a couple screws and plugs to be undone, and you have to remove the AC filter piece and associated screws to remove the whole cowl. It's easier to get off than back on. Don't force anything when putting it back on, as when it's lined up it will easily seat into place. Once that's off you can remove the engine cover. The passenger side of the engine cover has what I think is some kind of vacuum line running into it. With a little fooling around this came off pretty easily and went back on without a problem when I was finished. As for the plugs themselves. I worked one at a time front to back. You don't necessarily need a flexible extension shaft for your wrench, a skinny extension rod should be fine. I used a six, four, and two inch extension in combination depending on the plug. Everything went pretty smoothly going one plug at a time and torquing to 17ft lbs. The last plug gave me a little trouble in that it was the hardest to reach and I did not push the connector to the coil pack in far enough the first time. The engine threw a cylinder misfire code when I started up; after I cleared the code and re-seated the plug I haven't had any issues. Last edited by IslandTimes; 03-15-2017 at 03:19 PM.. |
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03-15-2017, 08:22 PM | #7 |
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Check your manual. IIRC it's every 4th oil change. Although based on research early n20 engine came with NGK SILZKBR8B8S that require replacement frequently. Newer NGK SILZKBR8D8S lasts longer.
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03-16-2017, 01:26 PM | #12 |
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Same as the above. Remove cowl, remove engine cover. May have to swing one of the strut braces out of the way, but no big deal.
Piece of cake. http://www.e90post.com/forums/showthread.php?t=826823
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'02 S54 M3 (500/500 GC/Koni)
'08 N54 135 (JB4, DCI, BMW PS/Bilstein B6s, H&R M3 FSB, Strongflex FCABs) '14 N55 X1 (JB4, BMS DP, BMS Intake, Alpina TCU reflash, H&R Sports, Bilstein B6s, E93 M3 RSB, Strongflex FCABs, baby seat) '08 N54 535xi touring (Bilstein B6s, Downpipes, MHD tune, baby seat) |
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03-16-2017, 02:16 PM | #14 |
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03-16-2017, 09:11 PM | #15 |
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Langley
They almost denied me too but then I had the service advisor speak to his manager and since I was fairly close in km they threw it in. I think I was at 3500 and they said they only do it at 3000 or something like that. It's an easy job to do it yourself in about an hour and the spark plugs themselves are quite cheap, so I wouldn't worry about it if the dealership doesn't include it. |
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03-17-2017, 02:10 AM | #16 |
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I go to Langley too!
I know it's easy enough, just in principle i like to have it covered by BMW. Guess I'll check back in when i am near the end of my free service dateline... |
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03-17-2017, 02:34 AM | #17 | |
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Quote:
Have you asked what your remaining mileage is on the spark plugs? |
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03-19-2017, 03:11 AM | #18 | |
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Quote:
1. I highly recommend NOT using your torque wrench as a regular ratchet. Use it for what it's designed to do...torquing nuts and bolts (and spark plugs). 2. On other spark plug jobs for other vehicles, I sometimes have had problems with the socket getting stuck on the plug down in the engine. Not sure if this is an issue with the N20 or N55, but to prevent this, tape the socket to the extension by wrapping around the outside circumference of the socket/extension before getting to work. Hope this helps.
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03-20-2017, 12:55 AM | #20 |
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Just in time, It was time to change oil and plugs...thanks for the video it will come handy. The socket in question you could buy it https://www.ecstuning.com/b-schwaben...ive/sp-05-12p/
I wish it was a repair/service manual available for the X1 to buy. I always had a service manual for all my present and past beemers, the 318, 3.0 CS, 325i, Z3. Last edited by Carlin/14/E84; 03-20-2017 at 12:20 PM.. Reason: add info |
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03-20-2017, 10:52 AM | #21 |
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I'm going with the Bosch. I've never come across any Denso plugs.
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03-20-2017, 12:18 PM | #22 |
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Resources abound. Cross reference with F30 forums for engines - n20/n55. E90 forums on other things.
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