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Spark Plugs - Time to Change?
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12-10-2017, 10:43 PM | #1 |
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Spark Plugs - Time to Change?
Hi everyone,
I purchased my 2008 328xi e92 back in the summer of 2016 from the first owner. The car had only 46k miles on the clock when I picked it up. In the past 18 months of ownership i put on a few miles, it now has just a little over 73k. I did a lot of preventive maintenance like changing the AT Fluid and gasket, fluid for both differentials, as well as fluid for the transfer case. I read in the manual that spark plugs need to be replaced at 100k, but being that the car is almost 10 years old, would you advise to change them sooner? The car runs fine, nothing out of the ordinary, just thinking that maybe the age factor might come into play, or is it more mileage dependent? |
12-10-2017, 11:13 PM | #2 | |
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Yes I changed the air filter, as well as the cabin filter soon after I picked up the car. I replaced all 4 rotors as well as brake pads to ceramic ones at around 60k miles. Couldn't stand all the brake dust build up, even a day after a wash, however I haven't touched the brake fluid. Would you suggest changing the ignition coils as well? |
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12-10-2017, 11:29 PM | #3 | ||
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12-11-2017, 07:50 AM | #4 | |
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If you just replace them all when they are still working, you're throwing away your money. |
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12-11-2017, 08:33 AM | #5 | |
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Idk what it is with BMW forums and people changing coil packs like they're spark plugs |
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12-11-2017, 10:44 AM | #6 | |
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The only reason coils fail because the spark plugs are overdue which stresses out the coils. People who believe "spark plugs will last 100k" will probably end up with failed coils and spark plugs. |
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12-11-2017, 10:47 AM | #7 | |
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BTW, change the spark plugs, i suggest you to change it asap unless you want a misfire and need to replace few coil packs. Get NGK spark plugs |
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12-11-2017, 10:48 AM | #8 |
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Alright guys i get it. I didnt notice he was at 73k. In that case ur fine for a good amount of time. I was saying it for preventive maintenance
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12-11-2017, 11:17 AM | #9 | |
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I found a kit for the transmission, it comes with a new drain and fill plug. The transmission fill plug is about $2-3, the diff plugs are about the same price you need 2 for each diff, the only more expensive part compared is the AT drain plug, which is about $20. FCP Euro sells nicely priced maintenance kits, AT kit comes with fluid, filter, new gasket, bolts, and plugs. Differential kits come with fluid and bolts as well. |
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12-11-2017, 11:50 AM | #10 | |
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I found the Xdrive + AT causes a lot of hassles when it comes to maintenance. The transfer case fluid is a B to change too due to the fill plug. So did you use any specific tool to take off the fill plug of the front diff and trans? |
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12-11-2017, 03:56 PM | #11 |
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I can't help you with that I usually try to work on my car by myself but after trying to take those bolts off with no luck, I took my car with the parts to my local Indy Shop, he did all the fluids for a reasonable price with the parts I provided. I'm sure they might have used some different tool to take out the old bolts, as he told me that the bolts do really seize up with age.
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12-11-2017, 04:43 PM | #12 | |
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12-11-2017, 07:43 PM | #13 | |
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12-12-2017, 09:57 AM | #14 |
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12-13-2017, 12:45 AM | #15 |
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12-13-2017, 05:29 AM | #16 | |
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A manual transmission can be set to "comfort", "sport", and "track" modes simply by the technique and speed at which you shift it; it doesn't need "modes", modes are for manumatics that try to behave like a real 3-pedal manual transmission. If you can money-shift it, it's a manual transmission. "Yeah, but NO ONE puts an automatic trans shift knob on a manual transmission."
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12-13-2017, 11:11 AM | #17 | |
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Of course, you can drive it until it hits 100k. But this is a really basic tune-up, Over time the spark plugs gap will be wider than it's supposed to be and it reduces performance. Takes about 30mins and $60 to avoid future problems. I don't see why not? They said a lot of things too, like 15,000 miles oil change interval, do you do that too? |
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12-13-2017, 02:54 PM | #18 | ||
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At 67k miles I started to get the same misfire symptoms so I Bought new Delphi coils. Pulled the plugs again to check them and regap them. They were found to be between .50-54. How in 7k miles could they be over .10 over again?? Bad coils? Now that I've got new coils the car runs smoother at idle, has much better throttle response, and pulls hard to redline. It's like having a different car!! |
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12-13-2017, 08:47 PM | #19 | |
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A manual transmission can be set to "comfort", "sport", and "track" modes simply by the technique and speed at which you shift it; it doesn't need "modes", modes are for manumatics that try to behave like a real 3-pedal manual transmission. If you can money-shift it, it's a manual transmission. "Yeah, but NO ONE puts an automatic trans shift knob on a manual transmission."
Last edited by Efthreeoh; 12-13-2017 at 08:59 PM.. |
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12-13-2017, 10:15 PM | #20 |
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my e91 just hit 60k miles so I purchased the 6 NGK plugs...wud I need to adjust the gaps or do they come out of the box already spec'd....I used to work on 964s and 993s and those plugs came already spec'd so there was no need to play w/ the gaps...thanks
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12-14-2017, 11:30 AM | #21 |
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Did you get the NGK plugs that are for N52? If yes, then you dont need to adjust anything
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12-25-2017, 06:18 AM | #22 | |
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If you like to spend money, that’s fine, but seems pretty unnecessary. |
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