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BMW 3-Series (E90 E92) Forum
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Nut job done! Pictures inside. Gross!
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06-14-2013, 01:28 PM | #24 |
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Yep, me to...2 hour job
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06-14-2013, 01:34 PM | #25 |
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This can be misconstrued in oh so many ways...
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06-14-2013, 01:35 PM | #26 |
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06-14-2013, 01:39 PM | #27 |
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I have seen tons of people doing this and before and after pics, but do we know the cause of the buildup? Is it oil mist that is hitting the hot valves and burning? Oil film on the valves themselves from the valve guides?
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06-14-2013, 01:53 PM | #29 | |
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Well, it's seems one should be done probably every 35K or so. The other as often as possible!!!
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Yes. +1. |
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06-14-2013, 02:43 PM | #30 |
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So in other words, probably worthwhile to do yourself. Even if it takes a whole Saturday afternoon/early evening, that's worth almost $600 to me for sure.
Now time to figure out the most cost/stress effective way to get this done DIY style... |
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06-14-2013, 03:32 PM | #31 |
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I had one done at 20k and 45k, and both looked comparable to those pics.
I'm now at 61k, and I'll be scheduling it again. I balked last time, because of the price (over a grand). The first two were covered under warranty. I think I just need to bite the bullet on it at this stage. I'm notcing similar symptoms to the OP. |
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06-14-2013, 03:52 PM | #32 |
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When I first learned of this issue with the N54 engine, and with DI engines in general, I did a lot of research and reading. I found a post on Audi forums from a guy with an RS6 who was in the same shoes as we are, but apparently this problem is considerably worse with Audis.
He was experiencing the same symptoms on his car, and ended up having his intakes (Supercharged V6) cleaned to the tune of $1700. So after he had it done, after every 1000 miles or so he took his car to a dyno shop to do pulls. And what he saw really pissed him off. The performance of his car degraded with every thousand miles due to this problem. Every time he would do dyno runs, the results showed less and less horsepower and torque. The results were so dramatic, that even after 500 miles performance would be noticeably worse. How 'bout them apples?
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06-14-2013, 06:41 PM | #34 |
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Not sure if you mentioned but do you have an OCC, as that would prevent some of the build up. Also, not sure where I found it but the issue was know for RS4s and not sure if anyone found the cure but it seemed that some kind of RLI oil helped out from surfing the forums.
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06-15-2013, 01:11 AM | #35 |
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Yep, got mine done at around 38k miles. Thanks for sharing
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06-15-2013, 09:38 AM | #36 | |
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It's obvious from the pictures I posted that I should've had it done much earlier, at least 10k miles ago. With an OCC, it probably wouldn't be as bad as it was, but it would still be bad.
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06-15-2013, 01:24 PM | #37 | |
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06-15-2013, 01:33 PM | #38 | |
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06-15-2013, 02:27 PM | #39 |
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I've done mine every 25K miles. The 3rd, 5th and 6th are always the worst one's. I really want to figure out a way to sandblast them. Anyone got a DIY with the tools and everything?
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06-15-2013, 02:37 PM | #40 |
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I know a guy in the DFW (tx) area does for $250 including the gaskets! appernetly it takes him an hour and a half! i dropped mine off for 3 hours so i have no clue how long it took mine lol but deff reccomend him!
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06-15-2013, 04:13 PM | #41 | |
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Can I get the info? I had mine done for 550.00 with CCA discount, wouldn't mind saving 300.00 next time. |
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06-15-2013, 04:20 PM | #42 |
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06-15-2013, 06:04 PM | #43 | |
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On that note, I grew up in Houston area and visit home often (family still there), does anyone know a Houston area shop the does this for a reasonable rate?
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06-17-2013, 11:14 AM | #44 | |
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Pmd! |
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