BACnMercedes

So before I head over to the stealership and ask those rocket scientists about a problem, I figured I would try here first since I usually find the answers here and tell them what to do.
I have a 2014 E350 with the sport package. The other day I rolled down the rear window and got a bad wind vibration. Similar to when a sun roof is open and you reach up and pull down that little wind deflector and the wind seems to vibrate around inside the car. It happened with either window down and both windows at the same time made it worse. I also tried the air on and off and it did not matter. And it only happens around 25-50mph. The car only had 150 miles on it and I tried with the rear window shade up or down and it did not matter. Any thoughts?

benyl

Buffeting, normal. Crack the front windows a bit to change the airflow.

BACnMercedes

Thanks. It doesn't do it on my '10 W212 nor any of my previous MB though. Should this be acceptable?

pmm

Yes. There really isn't anything you can do to change it except maybe putting those ridiculous-looking (IMHO) wind deflector things on each window. As benyl points out, cracking a front window will stop the buffeting.

hyperion667

BACnMercedes

Why can't you make the girl in your signature do that instead?????

faz999

Hi

When i first notice this i took it to the dealer and said nothing can be done. it the way it is design i was surprise with all the engineering goes into Mercedes they could not design the wind noise when you roll down one side of your back window

believe me i was shocked i thought there was something really wrong with my car as soon as i roll down adjacent window same side the noise is gone.

like people posted the wind coming in the car makes a terrible noise...

wish you luck take it in see what they say but i do not like your chances

good luck

instantfob

I just need her to move her arms away

BACnMercedes

Seriously? I was hoping I was not the first to notice this but to not have a remedy for this is pathetic.
And tonight was the first time I tried using the apps on the navi. Don't get me started on that dinosaur.
How can such a beautiful car that drives the way it does be so.......ancient in areas!

schorert1

Seriously, has there ever been a car that does NOT do this? jesus h christ.

When will engineers get around to eliminating the high-pitched whine I hear every time I open this forum.

drsaab

Yeah I think every 4 door does that. Open the front window 1". Problem solved.

BACnMercedes

If you hate the whine, don't open the forum. But actually are you not whining about us whining?
Also if you don't have help or solutions to someone questions, quit wasting their time by posting

faz999

Sorry you are wrong - i had my 2009 E350 it never made that noise

i had my Lexus GS350 it never made that noise

so i will disagree with you..

As far as whining well we are all here to help one another brain storm and pick one another brains - ideas and help..

It obvious you have nothing better to do than WHINE WHINE WHINE - life too short buddy enjoy it

BACnMercedes

Thanks and I concur.
My 2010 E63 doesn't do it.
My 2008 E350 didn't do it.
My 2012 4dr Tundra doesn't do it.
My in-laws 2008 E350 doesn't do it.
My parents 2007 E350 doesn't do it.
My 2011 4dr Tundra didn't do it.
My 2004 C320 didn't do it.
Heck, even this huge 2004 4dr Seagrave doesn't do it.

Sorry, I'll stop whining now.

schorert1

ha...
dream on I've never owned a car that does NOT do this! well, maybe my convertible doesn't do it.

google....window...buffeting....sedan....Anybody who has a kid knows that when the kid puts down a window in the back, it buffets like crazy.

Autoweeks Stephen Cole Smith agrees....
"I've been asked that question it three times in the past month. But I don't have an answer. Last week I lowered the rear windows in a $120,000 car, and the buffeting was so bad it sounded like we were inside a cement mixer. I suspect that as manufacturers concentrate more on aerodynamics, they design vehicles that allow the wind to flow around the body, not into the windows. My only suggestion is taking test drives, and note that sometimes the buffeting can be lessened by barely opening the front windows, or a sunroof. But otherwise, I know of no one who tests for this."

I guess deflecting more air away from the sides of a sedan is a good solution. sacrifice mileage because someone can't crack a front window and a rear at the same time.

http://www.sciencedirect.com/science...03682X13002879

I apologize for my ad-hominem attack on the group, obviously making a satirical point. To criticize this as a design FLAW when it occurs in virtually every four door'ed vehicle is a bit ridiculous. How often do you drive around with a BACK window open? I doubt many cruise around at highway speeds with one or both back windows open(again, unless they have a child or a dog). If this is your dealbreaker, that's kind of nuts. (if your window is open for a dog, and his head is out the window A) your dog shouldn't have his head out the window at highway speeds, and B) the dogs head prevents buffeting....).

fintail

I have a half century old MB that does it - drive the fintail on the highway on a hot summer day, windows down by necessity (I think it mostly does this if only one side is down), and it does what I call "helicoptering" - at certain speeds the chopping air sound is like a helicopter is nearby. Just a fact of airflow. Have never noticed it in a modern AC car, as I don't keep the windows down at highway speed when I don't have to.

mercedes4ever

Its quite common, with SUV's, I own several and they all do it above 60kph [35 mph]. Its the boxy design me thinks...very fkn annoying!! Windows up A/C ON!!! Is da answer!!

mercedes4ever

If he's not a serial killer, i'm a chinaman

E Classy

.

ImInPA

Every vehicle I have ever owned or driven has done this. There has never been a car with "roll-down" rear windows that doesn't do this at speeds above 20 mph. I call BS that the OP had another MB that did not do this. Now, what is the issue?

hyperion667

bigigg

Never owned a sedan that didn't have this problem.. crack window on opposite side, that helps. I'm sorry, but what did you think the dealer is going to do for you?

E Classy

this:

BACnMercedes

Yeap. You are all right. I have never owned another car that did this. I'm so sorry I even said anything about this BS. Now back to another thread where people can actually get help and not pestered.
Thank you Schorert1 for some advise but unfortunately I do not have a dog. I do have a stray cat I want to "relocate" though. But that might be a temporary fix.

Las84

Not to get on the wrong side here. There are realy some people here that just talk trash all the time. Nothing more. Not helping the people here at all. That is realy a downside. Have seen many topics here realy just got trashed by some members. Its a shame since this forum is the best one out there. Dont get me wrong. Many members want to help out, but there are a few bad eggs. So I salute the people thats on topic and want to help. Sorry for off topic.

To the thing OP wanted help for.
Have noticed this too. So i bought som wind deflectors for the windows. It helped, but it looks cheap as hell. So i just had to take them off.
Conclusion: wind deflectors help, but cheapens the look for the car.
(Sorry for any wrong/bad languge)