jellyheadz

hi everyone, my last problem is solved but a second problem still unsolved!

So, it's a buzzing noise coming right from the intake manifold you can hear it above it...
When the engine is cold the noise is not here or just a light whistle, but the hotter my engine is the louder is the whistle as you can notice in the following video guys.
No acceleration problem, normal consumption( if you can qualify the consumption on this car normal lol) engine is not hotter than usual, no CEL's..
When the hood is closed the noise is much lower and when the engine shutting down the pitch is higher for 2-3 seconds
High pressure of coolant or anormal pressure of something?
Hope it's not related with my "old man driving behavior?"^^


Thanks guys!
Cheers

rentzington

This was posted on before, I cant remember what the fix was but it involved changing a small part at the back of the engine if i remembered correct but wasnt exactly crucial.

jellyheadz

Oh someone already post something about it sorry i didn't found it... If you remember the post, that'd be cool

AMG893

PCV Valve?

jellyheadz

I know the last time, i got a cel and my dealer replaced something behind the engine, a valve but i can't remember what kind of valve it is...
I found this
https://mbworld.org/forums/w211-amg/505476-08-w211-e63-vacuum-shut-off-valve-not-working.html
What do you think? But the video isnt available anymore :/
Does the valve in the topic i show you is connected outside the engine i mean even if it is situated inside the intake is it possible to unplug it electrically outside the intake?

jellyheadz

Hi everyoneeeeeeee ^^
So today my CEL came again, my dealer changed something last time but it seems to be another issue! Surely its related with my actual noise... Will learn more at 7am tomorrow.
Keep you informed guys

abcut973

Get yourself an OBDII reader. You'll be able to pull the codes in the future.

jellyheadz

Yes, i ordered one on eBay yesterday i can use on wifi with iPhone app. It Will be very useful

jellyheadz

Fresh news, so this morning i went to my dealer and the head technician was here, 5 seconds listening to the sound and the verdict is a vacuum leak somewhere in the intake manifold... Maybe it's shot or the screws are untightened or the gasket is faulty. I have an appointment next monday for this and for my front bumper because of an idiot at the gas station last week
Anyway, the intake manifold is covered by my warranty Hopefully regarding the price lol.
My OBD reader would be in my postbox by the next days and will check this and will send you the codes, maybe it'll be helpful for some other
I also read this:


https://mbworld.org/forums/c63-amg-w...e-noise-3.html seems to be very related with my issue.


After all of these issues i'll present you my monster in details

jellyheadz

Here is the code... Seems well to be a vacuum leak somewhere and considering the whistle/buzzing noise, it's in the intake manifold

abcut973

Yes system too lean bank one.
So probably intake manifold or PCV valve. Didn't your intake manifold gasket was changed already?

jellyheadz

No, only something behind the engine lol the gasket never changed

jellyheadz

Hi guys, quick call from merc this afternoon, they told me they noticed the vacuum leak and they ordered the ref the guy told me it's a very expansive one in the air intake... intake manifold?? cost more than €2000 it seems... they receive it tomorrow normally, moreover the expert of my car insurance came to notice the shock in front bumper to allow them to repair/change it!!
i will keep you inform guys!

jellyheadz

So today they received my intake from germany

time for them to change it and i will have my car back on tuesday !

here are the photos!

ZephyrAMG

wow! new is nice!

jellyheadz

Hi everyone, just a message to Tell you my problem is now solved!!
My intake was cracked on the front left corner... It was really minor but... That was the issue! Thank you for your help guys!!!
Cheers from France !