2011 w212 e350 Engine noise/ oil in the air intake

david beesley

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Your Mercedes
2011 eclass w212 e350 cdi avantgarde
Hi everyone.
I'm new on hear. I would really appreciate it if someone could help me out.
I'm not well up on these vehicles, but is it normal to have noisy rattle in engine when oil filler cap is off. Also there is oil in the breather pipes close to the air filters via turbo. Would really appreciate advice, Thank you
 
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david beesley

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2011 eclass w212 e350 cdi avantgarde
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The seals inside the PCV valves are known to fail and contaminate the MAFs.

Perhaps this needs to be replaced?
Thank you for help. Where the pipe goes into this valve there is a very small amount of oil which looks like it's seeping/sweating from the pipe joint to the valve, even though the pressed clip is very tight
 

Wighty

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Your Mercedes
W211/E320cdi/2009 and CLK200k 2009
Thank you for help. Where the pipe goes into this valve there is a very small amount of oil which looks like it's seeping/sweating from the pipe joint to the valve, even though the pressed clip is very tight
Picture buddy ?
 


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