Several Misfire 4.8i

[Viktimize]

Originally Posted by Hjaltivignis

I just hate those Nxx engine from BMW lol. I used NGK 3199, if I unplug the MAF it runs like hell, so the MAF is ok and no vacuum leak.

Already spent over $9.000 in reapirs on it, and just about geting fed up with that piece of metal.

*edit* I just found out that NGK 3199 are not the right spark plugs, I was looking at another car when I took them out of the shelf. Will replace them with the right ones and hopefully the car will be fine

I hear you. My X5 is just a work beater anyway. I am strongly considering just getting a Honda CR-V.

Let us know how the correct plugs go for you.

[Hjaltivignis]

The spark plugs were the right ones, no oil or anything, everything looks clean as it should be.

Swapped ignition coils and will plug it to a computer tomorrow morning to see if the misfire is still isolated to cyl. 8.

[Baby Unicorn Taco]

Originally Posted by Hjaltivignis

The spark plugs were the right ones, no oil or anything, everything looks clean as it should be.



Swapped ignition coils and will plug it to a computer tomorrow morning to see if the misfire is still isolated to cyl. 8.

I’m pretty sure the NGK3199 are not the correct plugs. They aren’t even listed on NGKs site as compatible. I once installed the wrong plugs. Ended up with multiple misfires before I installed NGK 4294 to solve the issue.


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[Anshev]

Iridium IK20TT 4702 Denso Spark Plugs from eBay worked out fine for me.They were $38 for 8 spark plugs...