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What is this pipe

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Old 06-04-2024, 03:35 PM
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What is this pipe

I was looking for a bad coolant leak and found this break in a pipe. Appears to be coming from the turbo.
Don't know the name of this pipe to look for a new one .. .unless the pressure is so low that I can wrap the
break.

btw, I accidentally posted this is the wrong forum, sorry about that.

Old 06-04-2024, 08:40 PM
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2015 SL400 (M276 Turbo), 2014 C350 Sport (M276 NA), 2004 SL500 (M113), 2004 Audi TT225 (BEA)
Do you have a CEL or have you scanned for codes?
Old 06-04-2024, 08:50 PM
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Scanned for codes and nothing showed up.
Pretty sure I found the leak but this broken hose/pipe concerns me a bit. Doesn't seem to
affect anything. Maybe I have to get on it a bit, for the turbo to kick in. But if I wanted to
replace this hose, I don't know what the name of the part is. Hence the question[img]chrome-extension://bpggmmljdiliancllaapiggllnkbjocb/logo/48.png[/img]
Old 06-04-2024, 08:51 PM
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W204 2010 C300 4matic Sport M272
Is it part# 40 in the diagram?









Old 06-04-2024, 08:53 PM
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W204 2010 C300 4matic Sport M272
I saw a screenshot of that broken pipe on the video above. I dont know if he fixed it, or is trying to sell you something.
Old 06-04-2024, 09:51 PM
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Well that is the question, can I fix it or should I replace it. Thanks for the parts diagram but there are like 7 number 40's
Not sure which one it is. The video doesn't appear to be replacing the pipe I am pointing to, unless I'm not looking at it right.
Old 06-04-2024, 10:23 PM
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W204 2010 C300 4matic Sport M272
The part# will be stamped on your part, maybe on the underside somewhere.

i dont have that engine or ever worked on that engine so I dont know how all that is put together.

I did come across something labeled as an intake pipe repair mini hose. It looks like it may replace that broken hose, but I have no personal knowledge. Can that section be removed and replaced with something like this:













Last edited by TimC300; 06-04-2024 at 10:30 PM.
Old 06-05-2024, 07:10 AM
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2021 GLB250 FWD, 2023 GLA250 FWD
Originally Posted by mike amick
I was looking for a bad coolant leak and found this break in a pipe. Appears to be coming from the turbo.
Don't know the name of this pipe to look for a new one .. .unless the pressure is so low that I can wrap the
break.
Some people have repaired that break with electrical tape, but it doesn’t last with under hood temps. The least expensive route is to go to the auto parts store and get a length of heater hose in a diameter that fits the connections on both ends. Secure with spring clamps. You’ll have to do a bit of disassembly to get to the other end.
Unfortunately, MB doesn’t supply it without buying the whole intake air tube for $200+. You might find that one of the hoses described by @TimC300 works, but heater hose works just a well.
Old 06-05-2024, 02:32 PM
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Ok, that answers everything. Thanks TimC300 for all that info, should really be able to find something there.
And O, thanks that is about what I was thinking but it helps you confirming it.

Thanks again guys.

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