Have you made any additional discoveries on this one? It reminds me of a problem I had. An auxillary vacuum pump failed, this caused the engine to suck oil into the intake. It is vacuum related, since it only occurs at warm up and then goes away. Good luck!

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Brian W. Heitman

www.MBCA.org/northtexas

Join MBCA!!!

Herb, sorry I didn't get back to you. I "misplaced" your pm to me. I re-discovered your thread just this morning. I still think you were on the right track when you suspected your PCV system. If you look at the attached diagrams and descriptions, you can see that there are pathways oil can take to get to the ETA's and then into the combustion chambers. Hose 4b seems very suspect. I would also double check the Damper 7a.

Herb, will have to e-mail the diagrams to you. This Forum's 65KB limit on attachments prevents me from posting them. Check your e-mail later today.

Pete

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1995 S600, 1 of 618 (sold)

"Speed is just a question of money...how fast you wanna go?"

LONG LIVE THE W140!
Visit my Web Page at www.v12uberalles.com

Gee. I wonder how he found your web page.

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Auto Zentral Ltd.

The thread that I remember was started by you (Herb Phillips). I can still post the link, but I don't know if it is going to be helpful or not.

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-Justin

91 560 SEC AMG - other dogs dd
01 Honda S2000 - dogs dd
07 MB ML320 CDI - dd
16 Lexus IS250 - wifes dd

it's automatic.

I've got an SL 600 in the shop with the right side head removed. In the bottom of the valley there's some piping which allows the separated oil to drain back into the crankcase. If it were to become restricted, I could easily see how the engine would run fine for thirty minutes, then begin to smoke. After the engine is shut off, the oil remaining in the pipe drains back (slowly) into the crankcase. The next time the car is driven, it takes about thirty minutes for the oil to build up again, and the process repeats itself. Make sure the drain pipe isn't partially clogged.

Given the smell/pain factor (ie, bad/acrid) I'd lean heavily on the brake fluid being sucked through the master.. A little brake fluid goes a Long way towards making smoke (white) and it smells something awful.

Jonathan

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Blue Ridge Mercedes
Jonathan Hodgman
http://www.blueridgemb.com/
Enthusiast Service, Restoration & Tuning.
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Located in the Atlanta area
Specializing in all pre and post merger AMG's including Hammers and DOHC M117 engines.
Mercedes Repair Atlanta

Even if they are hard to find someone who actually know's what they are doing would be better off for the longterm longevity of the car. If I were in the market for a car like this I would locate my repair resources before even buying the car.

Are you saying that these cars suddenly just started appearing at dealerships with no documentation or training program setup for them? I always doubted the abilities of stealealership based service shops because of the way they go through people but now I'm really horrified. When a customer comes in for repairs they just guess at what to do?

You mean, some shops actually don't understand what they are doing ??


.

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[http://languageandgrammar.com/2008/01/14/youve-got-problems-not-issues/ ]

"A liberal is someone who feels they owe a great debt to their fellow man, which debt he proposes to pay off with your money."

Any word on what was allowing the oil in the vac lines?I discoverd some fluid in the vac line going to the ignition box(ezl)on my 92' 600sel.The car does not appear to be burning anything it shouldnt(no smoke)and runs well,but I sure would like to find out where this fluid is comming from and cure it!!Thanks guys.

honestly I cannot quantify what fixed it. Here's what I did.

removed both heads, had them cleaned/machined.
new head set, new head gaskets
replaced all seals on the intake and all 48 valve stem seals
replaced a bad mass air flow sensor and the harness going to it
replaced a bad oxygen sensor
forced the throttle actuators to re-learn their positions.

One or all of the above cured the problem, but whew! ...the M120 is serious business, not for the meek or faint of heart.

After this, my 6.3 seems like childs play.

Herb, I'm glad to hear the good news for you. You're right about "... not for the meek or faint of heart". Could you tell us how much the above fixes cost you? Maybe it is a motivation for me not to look for a V12 , it's a nice car to look at though. Such cars are driven by some head-of-states in the world.

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1996 E320 since 1/16/08, 171K miles as of Feb 2011

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1989 300CE - R.I.P. Dec 29 2007
Other MBs (sold): 1992 300E-24 - 1979 350SLC - 1984 230E - 1990 300CE

I'm not familiar with many abbreviations like POS, is it Previous Owner's Sh..?

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1996 E320 since 1/16/08, 171K miles as of Feb 2011

---------------------------------------------------------
1989 300CE - R.I.P. Dec 29 2007
Other MBs (sold): 1992 300E-24 - 1979 350SLC - 1984 230E - 1990 300CE

POS=Peice of ****

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2016 Corvette Stingray 2LT
1969 280SE
2023 Ram 1500
2007 Tiara 3200

Some might call it a piece of ****.

The V12 is a whole different machine, and its true that they are not for the faint of heart. Everything, from the suspension to the gearbox was reworked for these awesome machines.


Yes, they may be expensive (a rebuild for the M120 V12 at my indy mech. would cost over 3 grand, and that sensor for the ADS that comes standard on the V12 models may cost over 500 bucks), but I would get another one in a heart beat. That growl, that pull, and those insanely beautiful V12 badges make it simply irresistable!

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-Justin

91 560 SEC AMG - other dogs dd
01 Honda S2000 - dogs dd
07 MB ML320 CDI - dd
16 Lexus IS250 - wifes dd

it's automatic.