BEETS

Ok, so I've done a bit of research here and there's mostly dated info on this topic.

I'm sure most of you have encountered the somewhat loud whine after enjoying multiple up and downshifts in manual mode. Usually I can get about 15-20 mins of driving like that before the whine comes on.

Is there a remedy to avoid this sound? Also, technically speaking what is the sound?

tpliquid

oil cooler fan right side bottom bumper

can get 440 cooling package get rid of sound

INS1GNIA

The only loud whining sound I hear is all the little neighbor kids crying after I rev and run over them.

BEETS

You the man! So do you just deal with this sound or did you upgrade?

well that was graphic.

CarHopper

I didn't know you have a mustang too. 5.0?

tpliquid

just deals with it. upgrape package is like 1800+ install

BEETS

OK and last question can anything be damaged if I continue driving it hard once the whine comes on? I'm assuming it will get to a point where it's too hot and goes into limp mode?

CarHopper

Correct, car will protect itself before you do anything bad. 15-20 min of manual mode on the street isn't even that hard tbh.

BEETS

Really? I'm in Cali so maybe we've been having more heat than you guys on the east coast.

Now, I'm completely addicted to the throttle blip downshift noises when I'm driving like an *******, so with that being said I'm gonna ask a very WTF type question:

What is the optimal MPH, gear and RPM to do a downshift to get the absolute loudest "bark" downshift w/o causing any damage? if possible.

i.e. 40-50 mph, hold at say 3rd gear @5k RPM and downshift to 2nd

BLKROKT

Shift to 1st at 90mph and you'll get a loud noise

BEETS

Just got back from trying that...you were totally right! My entire engine shot thru my hood all the way to the moon. It was *** awesome and very loud. Cars swerving everywhere. Now, I have to see if my warranty will cover this. #FingersCrossed

INS1GNIA

Hahaha.

But no, I hate Mustangs lol.

chris135b

Hi,


This sounds seems to be a normal M156 lovely noise. If you watch this video (Old W204 Medical Car from Yas Marina): you'll notice from T11 (last straight) onwards, you start to hear the whine. As you get closer to the start finish, it gets even louder. I start to hear it at T18/T19 and it's really pronounced on the short shoot to the T20/21 complex. And BTW, the W204 Medical Car has the 44O package out of the box. So, I would not worry too much about the whine.


For me, I get that sound quite a bit...allegedly. Especially on downshifts when the oil is hot (240F-263F). It's all good though. It is just the M156 opening up it's throat and clearing out the pipes.


Enjoy!
-C

OmarC63

A side question about the video posted above...

How is it possible that the parking/proximity sensors are on and active at those speeds? Mine turns itself off at, I think, around 10 or 15mph.