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-   -   Noblemercedes warning: Change Turbo Inlet Seal every time disturbed (https://sprinter-source.com/forum/showthread.php?t=48673)

Aqua Puttana 07-05-2016 02:56 PM

Noblemercedes warning: Change Turbo Inlet Seal every time disturbed
 
1 Attachment(s)
Thanks goes to Noblemercedes. :thumbup::thumbup:

Official Information from Mercedes.

NCV3 OM642 V6 Engine

Quote:

Originally Posted by Mercedes Document
NOTE: The clean air line seal to the turbocharger must be replaced each time the connection is
released. Deformed or damaged boots must also be replaced.

The original thread is here.

Turbo inlet seal bulletin

http://sprinter-source.com/forum/showthread.php?t=48553

Attachment 77752

vic

A MB tip for proper installation. Thanks goes to Mikeme.

Quote:

Originally Posted by mikeme (Post 652641)
"the seal needs to be worked into place into the female plastic part"

This, I think was the source of my problem. [Seal dislodged and damaged turbo.]

I got my hands on some (probably bootleg) MB tech data, and there is a note:

The sealing ring must be inserted into the air intake hose first, to ensure that the sealing ring is not crushed. Parts of the crushed sealing ring may otherwise be sucked into the compressor wheel of the turbocharger severely damaged.

The raw text from the PDF above.

"Date: April 6, 2013
Order No.: V-B-09.00/01
Supersedes:
Group: 09
SUBJECT: MY-All, Model 906 with Engine 642
Operations in Clean Air Line Area
When working around or in the clean air line area, or when replacing it, the seals and boots for the
clean air line must be checked for damage or incorrect mounting.
Damaged mounting can lead to:
• Engine diagnosis warning lamp lights up
• Engine has low output, switches to limp-home, emits blue smoke
• Damage to turbocharger
• Engine damage

NOTE: The clean air line seal to the turbocharger must be replaced each time the connection is
released. Deformed or damaged boots must also be replaced.
Incorrect mounting will result in complaints about engine running characteristics.
Under certain circumstances, damaged or deformed seals on the clean air line can allow dirt and
foreign matter in and damage the engine.
The specified torque of 3Nm for mounting the clean air line to the compressor section of the
turbocharger must be followed. In the event of a complaint, check the seals and boots of the clean
air line for correct seating and signs of damage. Always document these instances with pictures.
Warranty and goodwill claims for engine damage that has been caused by incorrect mounting of
the clean air line, will be rejected.
When working on a vehicle where the clean air line/air filter box needs to be moved, do not rotate
the clean air assembly while affixed to the turbocharge. This will damage the seal on the
turbocharger. Ensure that the clean air assembly is removed completely."
This bulletin has been created and maintained in accordance with MBUSA-SLP S423QH001, Document and Data Control, and
MBUSA-SLP S424HH001, Control of Quality Records

Jchirchirillo 07-08-2016 04:01 AM

Re: Noblemercedes warning: Change Turbo Inlet Seal every time disturbed
 
Really sad when you get this important info here rather then from the source..

Tooth Fairy 07-08-2016 08:25 AM

Re: Noblemercedes warning: Change Turbo Inlet Seal every time disturbed
 
Quote:

Originally Posted by Jchirchirillo (Post 470663)
Really sad when you get this important info here rather then from the source..

Yes and no, at least you get it, not like the olden days before the internet...... :cheers:

Boxster1971 07-08-2016 04:49 PM

Re: Noblemercedes warning: Change Turbo Inlet Seal every time disturbed
 
Quote:

Originally Posted by Tooth Fairy (Post 470693)
Yes and no, at least you get it, not like the olden days before the internet...... :cheers:

But the vehicles "before the Internet" where also less complex.

Tooth Fairy 07-08-2016 10:23 PM

Re: Noblemercedes warning: Change Turbo Inlet Seal every time disturbed
 
Quote:

Originally Posted by Boxster1971 (Post 470739)
But the vehicles "before the Internet" where also less complex.

True.

CaptainKraemer 07-13-2016 06:03 PM

Re: Noblemercedes warning: Change Turbo Inlet Seal every time disturbed
 
Cheers to Noble Mercedes!! :)

cevans 11-11-2016 08:35 PM

Re: Noblemercedes warning: Change Turbo Inlet Seal every time disturbed
 
Great information.

For reference the part numbers for this seal are:
0179970445 for 2007-2010
0000940051 for 2010+

Easiest way to tell is that early models had a red seal late models have a black one.

auburnbuilder 11-11-2016 10:25 PM

Re: Noblemercedes warning: Change Turbo Inlet Seal every time disturbed
 
Be careful to use the correct seal, see below:

This seal is orange in color and was used from 2007 to approximately 7/30/2010 It is designed to be used in the plastic intake hoses labeled 906 528 02 24 and 906 528 15 24. The black seal shown below is for 7/31/2010 and ONLY fits later hoses which are labeled 906 528 22 24.

BobLLL 11-12-2016 05:10 PM

Re: Noblemercedes warning: Change Turbo Inlet Seal every time disturbed
 
The 7/2010 change date published by MB is not entirely accurate. My 2011 model was built in 10/2010 and has the 906 528 15 24 hose and the orange seal. I tried one of the newer black seals, and sure enough, it did not fit well in the intake hose. So, the safest thing is to match the seal to the intake hose number, at least if you have a 2010 or 2011.

Also, I bought a small bicycle-style torque wrench so I could apply exactly the specified torque of 3Nm to the hose clamp on the turbo seal. That turned out to be a lot tighter than I expected it to be.

I am being especially careful about this turbo seal thing, because the intake hose came loose from the turbo about 3,000 miles after the first time the fuel filter was changed, by a MB dealer, at my first 10k service. Fortunately there was no damage to turbo. The seal looked fine, too. The van just suddenly lost power.

That tech was the only person to have touched anything under the hood before this happened (other than me checking the oil), so he must not have installed or tightened the seal correctly after the filter change. So, if a tech didn't get it right, it seems like we all need to be careful.

Aqua Puttana 11-21-2016 07:42 PM

Re: Noblemercedes warning: Change Turbo Inlet Seal every time disturbed
 
This comment led us away from the Sticky Topic.
Quote:

Originally Posted by BobLLL (Post 502182)
...

That tech was the only person to have touched anything under the hood before this happened (other than me checking the oil), so he must not have installed or tightened the seal correctly after the filter change. So, if a tech didn't get it right, it seems like we all need to be careful.


Go here for the comments.
http://www.sprinter-source.com/forum...d.php?p=504488

Back to topic.

vic


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