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E46 (1999 - 2006)
The fourth generation 3 Series (E46 chassis) was introduced in 1999 and set the standard for engineering and performance during it's years of production including being named to Car & Driver's 10 best list every one of those years! ! -- View the E46 Wiki

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  #1  
Old 01-26-2013, 05:37 AM
Pcolravey Pcolravey is offline
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3.0 engine ran w/o oil cap - need help!

I take the heat for this one - I didn't secure the oil cap after adding oil. Ran fine for 3 starts (including 60 miles) but after sitting overnight in single digits it barely started, blew a ton of exhaust and quit. I was able to start in again once (with the cap on); it could barely idle, made a ton of unhappy noises. It did smooth out when given some throttle, but then died.

The vehicle is a 06 X5 with the 3.0 liter engine, I suspect there are a whole lot more gear heads on this forum for this engine than the X5 forum (that is meant to be a compliment!). Where should I go from here?
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  #2  
Old 01-26-2013, 05:46 AM
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MMME30W MMME30W is offline
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Dang that sucks, sorry to hear.

Did it restart after it died or have you not tried?

I guess in your place I'd check for oil level, button it up and give it a try. If no joy, I'd trailer it to a good indy mechanic. Might try www.bimrs.org.

Good luck.
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  #3  
Old 01-26-2013, 06:15 AM
bmwoem1 bmwoem1 is offline
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All that has to be done is clear the adaptations (and check oil level again).... I doubt any damage has been done. You can also drive it around once you get it started... The adaptations will correct themselves
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  #4  
Old 01-26-2013, 06:28 AM
Pcolravey Pcolravey is offline
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Not sure what 'adaptations' mean. I have a pc based program that reads a bunch of values including codes and resets (haven't been out there yet this morning, waiting for it to get to at least 10 degrees). I'll check for error messages and let you know. Please let me know what adaptations means,
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  #5  
Old 01-26-2013, 07:36 AM
mr_bean mr_bean is offline
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Adaptations are how the engine computer learns the particular behavior of the engine and uses that information to "tune" the engine. For instance, the BMW engineers know that for a certain amount of air flowing into the engine, it will require a certain amount of fuel. But each engine and each MAF sensor is different, so the whole system of engine, sensors, fuel injectors etc. has to be calibrated to work correctly with one another.
By leaving the oil cap off, you introduced a lot of "false air" into the engine and it disrupted the adaptation values stored in the ECU. By erasing the error codes in the ECU, you will re-set the adaptation values back to the factory defaults. After driving for a while, the adaptations will eventually return to where they were prior to this mishap.
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  #6  
Old 01-26-2013, 10:50 AM
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You may be able to reset the values to their default settings by disconnecting the battery for awhile.
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  #7  
Old 01-26-2013, 04:38 PM
Jimmys 530i Jimmys 530i is offline
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Top off the oil, reset the adaptions, and you will be fine.
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  #8  
Old 01-26-2013, 05:27 PM
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No need to reset adaptations. Just clear any codes (should have gotten a few) and go about your life. A certain member of this forum who lives near me did the same thing.
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  #9  
Old 01-30-2013, 05:55 AM
Pcolravey Pcolravey is offline
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follow up

Well, it turned out to be more involved than resets. The lack of oil cap was potentially contributing. The combination of the oil separator/PVC system not being updated, many short (less than 3 miles) trips and a morning temp in the low single digits caused a hydro-lock condition.

About a month ago I noticed some gunk around the oil cap and on the dipstick. I learned about the update (SI B 11 08 03) to address this. I didn't search any farther - to my detriment.

First estimate was $1,300.00 (install update, change spark plugs and oil, and some clean out something or other). This was done and it ran rough. Further investigation revealed - get this - a hole in the intake manifold. Never heard of such a thing. Not sure of the additional cost.

I would like some feedback on this one.
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  #10  
Old 01-30-2013, 07:51 AM
gesoffen gesoffen is offline
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Quote:
Originally Posted by Pcolravey View Post
Further investigation revealed - get this - a hole in the intake manifold. Never heard of such a thing. Not sure of the additional cost.

I would like some feedback on this one.

1) Unless your dealer has a good rep or you have a good rep with your dealer, I would not assume that you are getting quality service advice from the dealer service department, especially considering their labor rates. I would strongly suggest seeking a second opinion from an indy with a good rep. That CCV system update should've cost you nearly half of what you paid at the dealer.

2) Re: Intake manifold - while not impossible, I would be very suspect of this diagnosis. I can easily see a "hole" in the intake bellows (~3" diameter rubber hose that supplies air from the filter to the throttle body) as being a likely culprit and/or a "hole" in the valve cover/valve cover gasket as being likely but a hole in the intake manifold? - I call BS. One of the methods of replacing the CCV system involves removing the intake manifold so if there is a "hole" in the manifold, they likely caused it. Most mechanics choose to scrape knuckles/use colorful language to replace the CCV system without removing the manifold.

3) Ask them to clarify where the "hole" is and how it was diagnosed. If they're calling it based on a SES code only (e.g. bank 1&2 lean condition), that is not good enough. The only real diagnosis is a visual inspection of the entire intake system with or without a smoke test.

4) Reread 1) above and seek the advice of a trusted indy if you think your getting hosed by the stealer.
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Last edited by gesoffen; 01-30-2013 at 07:53 AM.
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  #11  
Old 01-31-2013, 05:58 AM
Pcolravey Pcolravey is offline
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follow up

Thanks for all comments.

I do have a good relationship with the dealer, as well as a good independent (who worked at the dealer for 10+ years. He left because he lives 40 miles away, which also makes it tough to use him for unscheduled repairs).

I asked for and received the damaged intake manifold. A 'hole' is a poor description. What happened is it cracked along a molded seam. Visible to the eye, it was diagnosed by a smoke test.

Regarding pricing; yes, expensive. Reviewing my invoice shows the parts for the pvc diagnose @ around $325 and 5.5 hours of labor including vacuuming oil out of several cylinders. Add change spark plugs and labor as well as an oil change.

The intake was $650 and labor two hours, down from the shop manual of 3.5 because of the duplication with the PVC service.

Runs like a charm.
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  #12  
Old 01-30-2013, 06:31 AM
SPDSKTR SPDSKTR is offline
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Quote:
Originally Posted by smolck View Post
No need to reset adaptations. Just clear any codes (should have gotten a few) and go about your life. A certain member of this forum who lives near me did the same thing.
Who did that?

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  #13  
Old 01-30-2013, 06:45 AM
Pcolravey Pcolravey is offline
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BMW dealership
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  #14  
Old 01-31-2013, 10:02 AM
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Plastic intake manifolds suck and are a problem on alot of cars.
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  #15  
Old 01-31-2013, 11:28 AM
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SJBimmer SJBimmer is offline
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Originally Posted by catso View Post
Plastic intake manifolds suck and are a problem on alot of cars.
Yes they do!, but the alternative is weight and additional cost. It is also going to get worse. The Gubbmint, in its quest to raise mileage, if forcing manufacturers to use parts that are barely engineered to meet the requirement necessary. This means more breakdowns, and more expensive repairs. They will be making cars on 3D printers soon.
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  #16  
Old 01-31-2013, 11:54 AM
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catso catso is offline
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Originally Posted by SJBimmer View Post
Yes they do!, but the alternative is weight and additional cost. It is also going to get worse. The Gubbmint, in its quest to raise mileage, if forcing manufacturers to use parts that are barely engineered to meet the requirement necessary. This means more breakdowns, and more expensive repairs. They will be making cars on 3D printers soon.
F*ck the Gubbmint, especially the current crop of imbeciles that inhabit the white house.
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