Oil Leak,Intercooler Pipe

[Paulm711]

Hi,I have what I beleive to be an oil leak from the intercooler pipe to turbo on my 2010 C350,I beleive the o rings fail on them? so I've ordered a new one and also a new mass airflow sensor pipework to turbo seal( the big orange one) Anything else I need or to look at while doing the job?

 

[W1ghty]

Hi,I have what I beleive to be an oil leak from the intercooler pipe to turbo on my 2010 C350,I beleive the o rings fail on them? so I've ordered a new one and also a new mass airflow sensor pipework to turbo seal( the big orange one) Anything else I need or to look at while doing the job?

There is a green o ring on the top of the intercooler pipe and a black o ring on the bottom end .

 

[Paulm711]

Yes I know that's thanks,I've ordered them

 

[WrightyLee]

Hi,I have what I beleive to be an oil leak from the intercooler pipe to turbo on my 2010 C350,I beleive the o rings fail on them? so I've ordered a new one and also a new mass airflow sensor pipework to turbo seal( the big orange one) Anything else I need or to look at while doing the job?

You'll want to do the pcv breather pipe orange seal also. Fits on the left next to the main turbo seal.

 

[BlackC55]

Those pipes a very common to leak. Often changing the seal doesn't stop it.

 

[W1ghty]

You'll want to do the pcv breather pipe orange seal also. Fits on the left next to the main turbo seal.

The updated pcv tube has the orange seal fixed to it now

 

[Jonesy161]

Have you checked the hose for a split on its lowest point, it’s a classic failure point, as well as the o rings.

 

[Paulm711]

Thanks for the oring and seal advice,changed the green oring which actually had had a black oring in it and was split,changed the big orange seal on the turbo as well and found that the pipe from the PCV into the MAF was split,so I've temporarily taped it up and need to order a new one,does it come with the sensor in it as well as the orange seal on it? Just a reminder it's a 2010 C350

 

[W1ghty]

Thanks for the oring and seal advice,changed the green oring which actually had had a black oring in it and was split,changed the big orange seal on the turbo as well and found that the pipe from the PCV into the MAF was split,so I've temporarily taped it up and need to order a new one,does it come with the sensor in it as well as the orange seal on it? Just a reminder it's a 2010 C350

The pcv tube is a complete thingy a foot long with orange seal attached , (sensor in the middle )

 

[Paulm711]

Thank you

 

[Paulm711]

@W1ghty
You wouldn't have a link to one would you please?

 

[W1ghty]

@W1ghty
You wouldn't have a link to one would you please?

Might be this ??

Mercedes OM 642 PCV Oil Separator PCV Valve K05175514AB, A6420100591 | eBay

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[W1ghty]

Try MB Newcastle eBay page first , to get the correct MB part for your car

 

[W1ghty]

Genuine Mercedes-Benz bleed valve for OM642 diesel engine | eBay

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[Paulm711]

Thanks for the help @W1ghty