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

Ravenhill 11-06-2018 09:56 PM

Re: Noblemercedes warning: Change Turbo Inlet Seal every time disturbed
 
I have a 2016 3500 V6. When I did the first fuel filter change at around 18,000 miles on the vehicle, I had been educated by you guys about the turbo inlet seal and proper air filter box handling, and had a replacement turbo seal on hand. However, when I tried to remove the old seal, it appeared to be well affixed as if it was glued in place. It looked like I would have to do some prying with sharp objects to get it out. It was not damaged or brittle or cracked, so I left it in place. It was still pliable on the edges, so it didn't feel like it had been cooked into place. Now it's time to change the fuel filter again. Could Mercedes be gluing the part in place to help keep it from getting sucked into the turbo? Has anybody had difficulty removing the old turbo seal? Do I need to up my vitamin intake?

Aqua Puttana 11-06-2018 10:04 PM

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

Originally Posted by Ravenhill (Post 707379)
... Could Mercedes be gluing the part in place to help keep it from getting sucked into the turbo? Has anybody had difficulty removing the old turbo seal? Do I need to up my vitamin intake?

The "glued into place" comment has come up a few times lately. The method may have changed. (Which makes sense to me.)

Quote:

Originally Posted by Ravenhill (Post 707379)
... However, when I tried to remove the old seal, it appeared to be well affixed as if it was glued in place. It looked like I would have to do some prying with sharp objects to get it out. It was not damaged or brittle or cracked, so I left it in place. It was still pliable on the edges, so it didn't feel like it had been cooked into place. ...

It sounds like you have the capability to assess the condition(s). In your situation, assuming all seems as before, I would likely do what you did the first go around. I have no data.
Listen to Mikeme. :thumbup:

I doubt you need vitamins, but my memory is that Wheaties cereal may help you a bit.
Added:
Apparently you may need the Wheaties.
:cheers: vic

mikeme 11-06-2018 10:14 PM

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

Originally Posted by Ravenhill (Post 707379)
I have a 2016 3500 V6. When I did the first fuel filter change at around 18,000 miles on the vehicle, I had been educated by you guys about the turbo inlet seal and proper air filter box handling, and had a replacement turbo seal on hand. However, when I tried to remove the old seal, it appeared to be well affixed as if it was glued in place. It looked like I would have to do some prying with sharp objects to get it out. It was not damaged or brittle or cracked, so I left it in place. It was still pliable on the edges, so it didn't feel like it had been cooked into place. Now it's time to change the fuel filter again. Could Mercedes be gluing the part in place to help keep it from getting sucked into the turbo? Has anybody had difficulty removing the old turbo seal? Do I need to up my vitamin intake?

consider yourself lucky

is your seal stuck to the turbo, or inside the tube?

mine was well-stuck to the turbo, and I left it in, cost me $5k almost 9,000 miles later.


several other folks have had luck with a little heat applied to the seal.

and my seal left for the turbo on a very hot day, after it had completed a DPF regen and sat for a few minutes (like 15 or 20)

Ravenhill 11-07-2018 12:45 AM

Re: Noblemercedes warning: Change Turbo Inlet Seal every time disturbed
 
Thanks guys.

Mikeme, it was stuck in the tube, not on the turbo. I'll report back when I take it apart again. I saw your posts about your issues - ugh. Sorry to hear that. Thanks for telling me about applying heat to the seal. I had not seen that nor did I think of that.

Aqua / Vic, thank you too. Wheaties it is.:D:

HappyFamilyVan 01-02-2019 08:11 PM

Re: Noblemercedes warning: Change Turbo Inlet Seal every time disturbed
 
3 Attachment(s)
Came back to this thread and re-read after I noticed cracks in my inlet hose during an oil change. As you can see by the close up shot I have an orange seal. Note: about 1 year ago I had some work done and the tech told me that they replaced the seal. So I was a bit surprised to see the Orange as my understanding was that Black was the new Orange and the newer seal was black. So I ordered a new inlet hose and seal from MB and decided to do myself. This way I knew I would have the correct seal.

Attachment 105800

Attachment 105801

To my surprise, an orange seal was already installed in the inlet hose. See pic 3. So now I have two seals, one that came in the hose and one that I ordered separately. Both orange. I have read on this site how you should install the seal in the inlet hose first before installing on the turbo, so I though cool, MB was saving me a step. But I still had an orange seal, but I was under the impression that the newer seals were black. I was confused.

Attachment 105802


So I decided to go talk with the tech. When I started to ask my questions, a big smile came across his face and he chuckled. He shared with me the Orange/Black dilemma. Yes there was a newer seal design and yes it was black and yes you installed into the inlet hose first. However, there was a catch. ONLY and ONLY if your sprinter was born with a black seal would you use the new seal. There were multiple service notices that came out on this issue and they were contradictory. When the original service notice came out, the tech said they trashed all the orange seals and only used the black new ones. Then another service notice came out and said only use the orange ones, so the tech said they trashed all the black seals. Then another service notice came out and said, it depends on the age of the Sprinter (NCV3) as to which seal to use. The tech told me these service notices all came in about a 3 month period.

So the final result on what/how to change:

If your Sprinter was born with orange seal (earlier models, my is an '08) you use orange. When you order an inlet hose, the seal will come installed in the inlet hose only to show you the direction of the fit. These are directional seals.

Step 1 Note the direction of the seal, then remove the seal from the inlet hose.
Step 2 Place the seal on the turbo in the correct direction.
Step 3 Attach the breather (wired sensor thing near the end of the hose. He said it sometime takes a bit of twisting to connect hence the reason to install BEFORE connecting inlet hose over the turbo which has the seal already on it.
Step 4 Line up the arrow on the inlet hose to the one on the turbo and slide inlet hose over the seal which is already on the turbo.
Step 5 Tighten clamp

If your Sprinter was born with black, then
Step 1 Then you should install seal in the inlet hose first.
Then follow Steps 3-5 above.

The reason for the different colored seals? Two different inlet hose designs. Very slight difference but there is a difference. The tech also recommended replacing the inlet hose every 5 years or so as the plastic gets brittle and can crack. As you saw in my pics above. New hose only costs about $150. Pretty cheap insurance considering the cost of a turbo. Also replace seal, if it needs it or not every 2-3 years. At under $25 really cheap insurance.

Just because the inlet hose is not disturbed, by replacing every 2-3 years you have the opportunity to inspect turbo and ensure seal is in good shape. By removing the inlet hose, it also makes it easier to pull the engine cover on the left side and inspect the pistons for leaks (so called black death). Catching early makes rectifying leaking pistons less of a mess.

Sorry for the long post, but thought I would share what I found out.

Happy Sprintering,
HappyFamilyVan

Bobnoxious 03-18-2019 11:45 PM

Re: Noblemercedes warning: Change Turbo Inlet Seal every time disturbed
 
1 Attachment(s)
Please note: Some model years, the clean air tube must be replaced to match the profile of the new seal. Refer to EPC for details.

levedr 03-25-2019 06:30 PM

Re: Noblemercedes warning: Change Turbo Inlet Seal every time disturbed
 
1 Attachment(s)
Quote:

Originally Posted by Aqua Puttana (Post 470134)
Thanks goes to Noblemercedes. :thumbup::thumbup:

Official Information from Mercedes.

NCV3 OM642 V6 Engine



The original thread is here.

Turbo inlet seal bulletin

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

Attachment 77752



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

What, if, is the significance of the three pointers?
Two on the hose, one on the turbo

PrinterUser 03-29-2019 02:12 AM

Re: Noblemercedes warning: Change Turbo Inlet Seal every time disturbed
 
I was work with that seals a hundreds times and it should be replace every time??
Of course I pay attention to condition when work on it. But replace it every time it stupid idea.
It’s Benz style... every time every where New bolts, nuts, connectors... I know couple important things like injectors bolts and washers and completely agree with this, but it’s not about simple rubber gasket on inlet duct even orange color... only one thing have sense there it’s correct tightening torque moment.

levedr 04-01-2019 05:17 PM

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

Originally Posted by HappyFamilyVan (Post 726898)

Attachment 105800



https://sprinter-source.com/forum/at...1&d=1553538512

Step 4 Line up the arrow on the inlet hose to the one on the turbo and slide inlet hose over the seal which is already on the turbo.

Which arrow on the turbo? The metal pointer tab pointing straight down or the embossed "arrowhead' on the metal tube?

Looking at the second picture here would the trained eye say that the turbo inlet seal was changed out 20 miles/ three hours ago?

Thank you

beez 10-28-2019 11:12 PM

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

Originally Posted by TooMuchHair (Post 698085)
Nice video Bobnoxious, thanks!
But that sure looked like a new "radial" style seal that I thought would be black not orange. Can anybody comment and clear this up. If MB just showed this in orange, that seems like it will add to the confusion.

Orange is the new black? :tongue:
I'll see myself out.


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