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BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > General E90 Sedan / E91 Wagon / E92 Coupe / E93 Cabrio > What do you think about my spark plugs??



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      02-04-2012, 02:48 PM   #1
rami335i
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What do you think about my spark plugs??

How bad are my spark plugs??

I just changed the spark plugs on my 08 335i, the car didnt have any misfire codes or any major rpm swings. from time to time i can feel a small misfire at idle. from time to time also i see the rpm needle travel between 550 and 650 at idle. These are "bmw bosh" plugs so i assume the plugs that the car came with from the factory. the car has 30k miles and didnt have any spark plugs change on its service history from the previous owner.

these are plugs 1 to 6 from right to left.

do you feel a change in performance with fresh spark plugs (i am FBO)?
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      02-04-2012, 03:14 PM   #2
MacR6
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They look normal

http://www.aa1car.com/library/reading_spark_plugs.jpg

I have that small misfire feeling too at idle. Mine actually had the misfire problem and had to have the coil packs and plugs replaced on all 6 cylinders at about 33k.
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      02-04-2012, 04:11 PM   #3
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I've had the same spark plugs in my Honda for over 100,000 miles! I hope my BMW does not have all sorts of dumb problems.
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      02-04-2012, 04:14 PM   #4
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Oh ya. They look ok and unless Chuck Norris installs them than you will feel no difference.
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      02-04-2012, 04:25 PM   #5
rami335i
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Quote:
Originally Posted by HaveQuick View Post
Oh ya. They look ok and unless Chuck Norris installs them than you will feel no difference.
m sure chuck norris will make sure those plugs get what they deserve

I have heard some people claim a stronger mid range after spark plugs change
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      02-04-2012, 04:44 PM   #6
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They look ok its just that our cars idle low sometimes too low.
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