avery.whss

Hey guys I hope all is well...I just picked up a 2009 C63 w/PP with 42,000KM on it...It's a monster I love it...I'm not sure if it's always been there because most of the time I'm knee deep in the gas pedal but I noticed the last few days theres kind of a turbine like noise coming from around the driver side/front of the car..it almost sounds like it's coming from that oil filter like spot by the Benz badge on the plastic..is it normal or did I blow something up? the loudness has stayed consistant and you can't really hear it unless i open the hood..It's not there when the car is cold but after I'm out ripping it then it's there once it's heated up..I'm going to take it in tomorrow to the dealership to see if it's anything but the car still runs the same/fine..no warnings or anything.

Here's a video http://tinypic.com/r/2zp0ewg/5

m a x i m u s

Don't have my car with me at the moment, but I think mine does the same thing. I never gave it much thought bc I like the superchargeresque sound of it. Uh oh, does that make me a poseur? Lol.

avery.whss

http://tinypic.com/r/2zp0ewg/5 Here's a video I just took of it. You can hear what I mean...it's there once the temp gets warmer but when its like below <75c-ish it's not.

Rib Feast

You sure it isn't the big cooling fans that kick in when you thrash the car? Mine does it in traffic after I've been giving it a flogging.

avery.whss

No idea..I've only had the car for a week..does yours sound like that? Could be..I try and not punch it at every light but sometimes my foot slips

Critter

Does the noise go away when you give the throttle a little push to raise the RPM's, Possible vacuum leak?
Let us know what the dealer finds, Thanks

avery.whss

No if I give it some throttle it stays. It might be fans but IDK the sound isn't there when the car is <80C but the second 80C hits whatever is it turns on and that sound comes.

roadtalontsi

sounds like the whistling noise from the crankcase ventilation hoses. i want to say there is a bulletin on it. nothing major just a hose gets vacuum pulled so hard on it, it collapses and makes that noise.

m a x i m u s

my noise isnt quite like yours. im curious what it is. keep us posted.

avery.whss

Ok...it sounds like nothing major It usually isn't there until the car is warmed up which I'm assuming is because some fans turn on and such once it's warmed up, I'll keep you guys updated on what the dealership says..hopefully it's a easy quick fix.

Rib Feast

Just to confirm: mine doesn't sound like that, that's way higher pitched than I expected to hear.

adv4nced53

Does the car run hot when it's fully warmed up? Strange that it does it exactly at 80F. Makes me think it's thermostat related.

avery.whss

No the car temp stays steady (Between 90-105ish) even while I'm ripping it...No warning lights or anything...I just got back from the MB Dealership and the service guy said the sound is fine and not to worry he said if there was a issue the dash would light up. He's owned 2 AMGs apprently. Should I trust him?

adv4nced53

If it sounds very unusual, take it somewhere for a second opinion. AMG or not, it should sound like a normal engine. It's hard to tell if there is an issue from the video.

avery.whss

Any mechanic? IMO it doesn't sound like it's F'ed up but it sounds like something is working..like I said IDK if it's always been there because I wasn't under the hood once the car heated up when I bought it. Just booked it with one in my city..I doubt anything is wrong but always safe to double check.

Sidv22

Did you get the issue checked? I came home and noticed the exact same sound. i have heard this sound earlier but never when the engine is colder. curious to know if anyone has got this issue checked out.

avery.whss

Goes in Thrusday...had one of the techs look at it again and he said it sounds like a vaccum leak, We'll see on thrusday what they say ..hopefully nothing to serious

Sidv22

I hope so too! Plz keep me posted. I have the exact same sound coming from mine.

khmergod

I have a slight pitch, but not like yours OP. Yours is very high pitched.

avery.whss

Intake Manifold is shot Well not the manifold it self some tumbler seal or something that's shot and the entire manifold needs replaced. $3500 fix at MB dealership...should I get a estimate at the other MB place to see if it's cheaper or is the dealership a fair price? They said it's OK to be driving around but I might notice it's sluggish...if anything the cars been way more agressive the last few days

Anyways go get yours checked..might be the same thing.

Just don't get why if it's just the tumble flaps then why the entire manifold needs to be replaced?

m a x i m u s

now that i remember, i had the same exact issue, but it was under warranty. i would check an indie shop. at a minimum, the labor will be less.

avery.whss

The part price is about right though? $3500? Mine isn't under warranty but luckily the cost isn't going to hurt just have to put in some more hours at the office

m a x i m u s

i honestly don't remember what the cost would have been, and also don't quite remember them having to replace the whole piece, although that does sound vaguely familiar ...

Sidv22

Damn that sucks! Mine is under warranty so i ll go and get it checked out. The noise seems to be coming only when the engine is warm. I guess it's time to flash back to stock and visit the dealership. Wish me luck!

avery.whss

Yeah that's exactly like mine, it's the tumble flaps or something, I'm guessing they change angle when the car is warmed up who knows..lets hope it fixes the issue, should be getting it fixed in the next few weeks. I'll post a update once it's fixed..keep us updated on yours hopefully it's nothing like mine.