11-29-2016, 09:48 AM | #46 |
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The porcelain on the sparkplugs is very delicate and yes, if you overtorque them the porcelain insulator can crack thus causing an engine misfire. I also find it useful to put a swivel connector since the angle of the spark plug is offset from the angle of the coil tube. This offset angle can also cause the porcelain to crack.
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12-04-2016, 08:26 PM | #47 | |
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My car is a 2013 328i with N26 engine but it didn't have the hoses. I found your method of removing the additional panels much easier to work with even if it takes an extra 15-20 minutes to take off and put back i'd rather not bend the plug. Because of the extra space available there was no need to squeeze an additional 1" or 2" wrench extenders, The tape around the flex socket and wrench extenders worked like a charm I spent: Cta CTA2376 14Mm X 12Pt. Bmw Spark Plug Socket - $9.39 on opentip.com TEKTON 24330 3/8-Inch Torque Wrench - $26 amazon 4 x bmw 12120039664 spark plugs - $30 i was lucky to find a deal of 4 original spark plugs on ebay (us seller) be carefull if you order from China or Hong Kong, they might be fake copies. Alibaba sells this part number for $1 a piece TEKTON 1601 - Wrench extenders - $12 on amazon. i had this parts... flex socket - absolutely necessary , i had it in my box tool, don't know it's price... Total cost for me was $65. The car's engine was behaving excellent before the spark plugs replacement but after installing the new spark plugs - the engine is noticeably quieter, no further testing was done yet. My car has 45000 miles Last edited by constantin_md; 12-04-2016 at 08:33 PM.. |
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05-03-2017, 10:13 AM | #48 |
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I wish I had seen this post by Class5Kayaker before giving up on the spark plug install for another day.
Thank god I put off buying strut torque stretch bolts. I am deciding to do the hardest spark plug first and then work my way to the easy ones. |
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05-03-2017, 10:54 AM | #49 | |
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05-07-2017, 04:51 AM | #50 |
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Is silicon spray allowed to aid removal of stubborn ignition coil boots?
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05-25-2017, 08:19 AM | #51 |
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Changed my sparks for the first time at 80k kilometers.
According to the comparison of the old and new (pictures attached), old ones still seem to be in good shape. Could I have gone a few thousand km more on the old ones? |
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03-11-2018, 09:43 PM | #52 | |
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Thank you very much for the advise , I have a 2012 June built F30 as well and it has the same hose on the left. Will give it a try, also may I know torque spec required for the cowl cover screws? thank you!
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2012 BMW F30 328i
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06-20-2018, 05:05 PM | #54 | |
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Drives: F30
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I have seen some other forum members checking/changing gaps though... Interested to hear other responses on this. |
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06-25-2018, 01:19 PM | #56 |
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Thank you so much for this video! I've been searching everywhere because my car just hit 105,000 and I'm pretty sure the dealership I bought my car from NEVER changed out the spark plugs.
Going to BMW today to purchase plugs and hopefully I don't screw this up. Wish me luck |
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06-25-2018, 01:23 PM | #57 | |
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If you can wait, you can buy them online for half the price of what they will charge you. |
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06-28-2018, 02:03 PM | #58 | |
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I did get a military discount from them though, so thats pretty cool! |
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09-18-2018, 10:30 AM | #61 |
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For those that replaced plugs. Fairly obvious from the condition of the old ones that replacement was needed?
Reason I ask is that I am sitting at 80k miles. Dealer at last visit recommended that they be replaced yet was perplexed that when my key/VIN was scanned the system didnt automatically generate the reccomendation and there is no history that they have ever been replaced. Bought the car with 58k from dealer. So...thinking I might just pull one to have look. Thoughts? |
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09-18-2018, 10:40 AM | #62 | |
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Indies said the Iridium spark plugs used in F30 are sturdy, when they age it can arc differently and can hurt ignition coils(covered by BMWNA in PZEV states), and/or cause non-optimal combustion hence carbon buildup. 80k probably is close to EOL and DIY should be $70-ish. |
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09-18-2018, 04:38 PM | #65 |
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09-18-2018, 04:48 PM | #66 |
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Yes 24k miles will be way too early to change spark plugs.
Having said that, a colleague presented some interesting math to me lately. E.g. 4 spark plugs costing $60(roughly) can last 60k miles, so each 1k miles costs $1. So changing early at 24k miles wastes extra $36 for DIY, and that's not too bad if one aims for the DIY fun. |
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