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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > 330i Tune up 100k miles (Pics Inside)



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      09-23-2012, 02:14 AM   #1
DJ Apex
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330i Tune up 100k miles (Pics Inside)

Ok ive been putting off installin new plugs in my car since i did my headers. And when i found out 4 out of 6 exhaust gaskits from header to motor were leaking! Witch was making my Pre cat o2's dump more fule due to the extra oxygen. Well when i did my header mod i had 82k miles and im sure the plugs needed to be changed then but after 18k miles of running extra rich! They looked yummy here's pics i also replaced all 6 coil packs. cabin air filter, Cleaned the MAF, changed the rear end oil, did a oil changed (RP 0w-40) and i gotta say WOW i know my butt dyno is not good but its like a whole new car. i swear i noticed more low end TQ and my top end is amazing!
I noticed the gap from old to new plugs were huge. I almost fit a nickels thickness from old to new.

I also noticed a flat impression on the prong were it fires from on all 6 plugs.

I used plustar dg1i plugs

Wish i got pics of them befor install so my bad i was in a rush to finish up this afternoon.

All 6 (100k miles)





Cyl 1

Cyl 2

Cyl 3

Cyl 4

Cyl 5

Cyl 6

Random's




Just thought i would share with you guys so u can see what 100k plugs look like.
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      09-23-2012, 07:53 AM   #2
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Thanks for the pics. I did mine at 80K when a coil pack failed.
Looked about the same.

How much of a pain was it to do the rear end fluid change? Where you on a lift?
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      09-23-2012, 10:56 AM   #3
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rear end was eazy and no lift lol
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      09-23-2012, 06:24 PM   #4
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i did mine at 100k, they really werent that bad and probably could have gone longer. btw how have your home made headers been working out? i was thinking about doing it
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      09-23-2012, 09:02 PM   #5
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Quote:
Originally Posted by TroyDeJ View Post
i did mine at 100k, they really werent that bad and probably could have gone longer. btw how have your home made headers been working out? i was thinking about doing it
The headers have been amazing i love em and for a cost of $200 shit u can beat it. Best bet is to buy 6 new gaskits for each cyl so when u replace the header u have a new set cause u will damage the old ones apon removal
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      09-24-2012, 11:30 AM   #6
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Whenever intake or exhaust manifolds are removed they should always go back together with new gaskets.... mechanic school 101.
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      09-24-2012, 12:45 PM   #7
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What type of header did you install?
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      09-24-2012, 03:52 PM   #8
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Quote:
Originally Posted by cdgatti View Post
Whenever intake or exhaust manifolds are removed they should always go back together with new gaskets.... mechanic school 101.
no duh
But the gaskits Lookedn fine and came off eazy and went back on ok. I messed them up re installin the header.
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      09-24-2012, 03:53 PM   #9
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Quote:
Originally Posted by SavvyByNature View Post
What type of header did you install?
http://www.e90post.com/forums/showthread.php?t=629268
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      09-25-2012, 04:57 AM   #10
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Quote:
Originally Posted by DJ Apex View Post
no duh
But the gaskits Lookedn fine and came off eazy and went back on ok. I messed them up re installin the header.
My post wasn't aimed at you... as you are obviously a good mechanic, you made your own exhaust! I just wanted all others to realize this. Labor is the expensive or difficult part if you do it on your own, don't skimp on the materials to do the job absolutely correct.
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      09-25-2012, 11:45 AM   #11
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Quote:
Originally Posted by cdgatti View Post
My post wasn't aimed at you... as you are obviously a good mechanic, you made your own exhaust! I just wanted all others to realize this. Labor is the expensive or difficult part if you do it on your own, don't skimp on the materials to do the job absolutely correct.
finding the gaskits was a bitch it took me weeks to find them lol
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      09-25-2012, 01:53 PM   #12
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hope to see other fluids & parts addressed
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