Mercedes e350cdi W212

Nmh

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Aug 18, 2016
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E350 cdi w212
Hi all

Has anyone ever had an oil leak from the high pressure turbo hose seal.

Cheers
 

Mr Filipov

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2017 BMW 535d Gran Turismo
Sorry for not understanding, but what is the high pressure turbo hose? Do you mean the inlet pipe in front of the turbo?
 

MancMike

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Jul 29, 2014
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High pressure side is between the turbo and the engine.

Is there an engine breather pipe going into the low pressure side that might be pulling oil through from an overfill?
 
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Nmh

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Aug 18, 2016
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E350 cdi w212


I have been told I need to replace the seal (number 50 in the diagram).
 
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Nmh

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Aug 18, 2016
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E350 cdi w212
The turbo has a slight trace of oil where it meets the inlet pipe. Oil traces around the air filters too.

The faults came up as exhaust back pressure sensor and boost pressure (can't remember the exact wording used). Exhaust sensor done but car is still in limp mode with EML on.
 
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Nmh

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Aug 18, 2016
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E350 cdi w212
So has anyone replaced the seal and if so, did you have to remove the turbo completely? Cheers
 

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