Shaheer

Hey guys,
I recently started getting this whining noise from the engine bay! I am not sure as to what it is. Going over some other threads didn't really clarify things for me. What do you think could be the possible cause of the noise?

Its a 2010 C63 P30 with 152,000 km. With the only mod being a tune (OE tune)

For some reason I couldn't upload the video. The following youtube link is of my cars engine sound

Thanks for any help that you can provide

BLKROKT

Intake manifold gaskets are leaking

skratch77

I had a whine like that after taking the manifold off and it ended up being one of the vacuum houses that plug into the back of it.

the line under the pcv valve has alot of vacuum as its connected to the throttle bodies.

I would check there first.

Shaheer

Thanks for the reply. The intake manifold gasket needs replacement!

Should I be doing an other preventative maintenance when getting this repair done?

fergsc32

and also clean that engine bay!!

roadkillrob

PCV if the intake manifold is off.

SikC63

Intake manifold PCV

Drifter2090

Hey, did tou ever get this fixed? Was it the intake manifold? I have the same sound on my Cls63