hello.
sorry for my bad english.

so,i have 2001 e320cdi
engine have big voice
There is no exhaust(smoke), no oil loss, it goes very well and does not have any other problem.
but voice is bigger... i know 3.2 cdi have bigger voice than 2.2 or 2.7, but my engine have different voice.
The sound comes from the engine and the feeling is that the oil is not supplied well and some parts of the engine are shaking.(My opinion)
What could be the problem?
I was in three services and did not understand anything.

 

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