BMW M3 Forum (E90 E92)

BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Go Back   M3Post - BMW M3 Forum > M3 (E90 / E92 / E93) > General M3 Forum (E90 + E92 + E93)
 
Post Reply
 
Thread Tools Search this Thread
      04-18-2010, 10:03 AM   #1
Krozi
Deutsche Jung aus Kölle
 
Krozi's Avatar
 
Drives: 2008 E92 ///M3 Alpine White
Join Date: Oct 2009
Location: SoFla - Bonita Springs

Posts: 2,702
iTrader: (21)

Rumble in 5th gear...6spd.

Before we start, I welcome any DCT shit posting, after all the shit I posted about 6spd being better, I have it coming

So when going about 45-55 I get a rumble in 5th gear, and only 5th gear...as soon as I put the clutch in, it's gone, or if I go to 6th or 4th, it also goes away...just wondering what it could be....It's pretty slight so I don't know what it could be...

Any help?

Thank you

-Krozi
__________________

2008 E92 ///M3 Alpine White//Fox Red//6MT//
Florida Bimmer - Join us on FaceBook!
Krozi is offline   Germany
0
Reply With Quote
      04-18-2010, 12:16 PM   #2
CarForHire
Major
 
CarForHire's Avatar
 
Drives: Slow in the left lane.
Join Date: Nov 2009
Location: NOVA

Posts: 1,298
iTrader: (0)

Garage List
2007 E90 328i  [0.00]
Quote:
Originally Posted by Krozi View Post
Before we start, I welcome any DCT shit posting, after all the shit I posted about 6spd being better, I have it coming


-Krozi
__________________
Race car driving is like sex...all men think they are good at it. - Jay Leno
CarForHire is offline   United_States
0
Reply With Quote
      04-18-2010, 12:41 PM   #3
SenorFunkyPants
Colonel
 
SenorFunkyPants's Avatar
 
Drives: E92 DCT M3
Join Date: Mar 2009
Location: UK

Posts: 2,460
iTrader: (0)

Quote:
Originally Posted by Krozi View Post
Before we start, I welcome any DCT shit posting,
Heh...as if!...us (rumble free) DCT owners have more class!!
Anyway good luck with getting a fix...my best guess would be some sort of bearing noise in the gearbox.
SenorFunkyPants is online now   United Kingdom
0
Reply With Quote
      04-18-2010, 03:09 PM   #4
Richbot
Colonel
 
Drives: Jerez Black E90
Join Date: Sep 2007
Location: STL

Posts: 2,014
iTrader: (2)

Could be RPM dependent. Try cruising at the same RPM in 4th and 3rd and see if you can hear it. Stuff like that gets louder in higher gears because there's more load on the engine at the same RPM, which can cause things to get louder if they're not damped out. If you've heard of what happens when you put a lightweight flywheel in a BMW instead of a dual-mass unit, that's kindof what they sound like all the time to me.
__________________
Richbot is offline  
0
Reply With Quote
      04-18-2010, 03:29 PM   #5
JAJ
Captain
 
Drives: 2014 Shelby GT500
Join Date: Apr 2008
Location: Vancouver, BC

Posts: 927
iTrader: (4)

My 6MT does the same thing in 5th gear. 5th is the "straight through" gear where the input shaft is locked to the output shaft, leaving all of the other gears in the transmission to spin without a load on them.

Don't worry about it, it's nothing. If it was actually a bearing problem the gearbox would fail within a few hundred miles.
JAJ is offline  
0
Reply With Quote
      04-18-2010, 03:33 PM   #6
rydr
Enlisted Member
 
rydr's Avatar
 
Drives: 08 M3
Join Date: Jan 2010
Location: Boise, ID

Posts: 34
iTrader: (0)

- +
rydr is offline  
0
Reply With Quote
      04-18-2010, 04:01 PM   #7
Krozi
Deutsche Jung aus Kölle
 
Krozi's Avatar
 
Drives: 2008 E92 ///M3 Alpine White
Join Date: Oct 2009
Location: SoFla - Bonita Springs

Posts: 2,702
iTrader: (21)

Quote:
Originally Posted by JAJ View Post
My 6MT does the same thing in 5th gear. 5th is the "straight through" gear where the input shaft is locked to the output shaft, leaving all of the other gears in the transmission to spin without a load on them.

Don't worry about it, it's nothing. If it was actually a bearing problem the gearbox would fail within a few hundred miles.
Thanks for the help man
It's just kinda weird since I have only noticed it recently...been driving the car for about 4000 miles now..
__________________

2008 E92 ///M3 Alpine White//Fox Red//6MT//
Florida Bimmer - Join us on FaceBook!
Krozi is offline   Germany
0
Reply With Quote
      04-18-2010, 04:05 PM   #8
VanM3Lover
First Lieutenant
 
VanM3Lover's Avatar
 
Drives: 4.0 V8
Join Date: Jan 2009
Location: Van

Posts: 395
iTrader: (0)

I have noticed this rumble in 5th gear too and just assumed that it's normal so I haven't posted.
VanM3Lover is offline  
0
Reply With Quote
      04-18-2010, 07:38 PM   #9
ilidon
Corporal
 
ilidon's Avatar
 
Drives: E92 ///M
Join Date: Dec 2008
Location: L.I., NY

Posts: 966
iTrader: (9)

Garage List
2009 335i  [3.50]
also have this while driving in 5th gear and just gotten used to it. yeah, i think this is normal with our lightweight clutch. btw, i currently have 2000 miles in my odometer.
__________________
2010 E92 ///M3 AW/FRE
2009 E92 335i- SOLD

ilidon is offline   Philippines
0
Reply With Quote
      04-18-2010, 07:46 PM   #10
Krozi
Deutsche Jung aus Kölle
 
Krozi's Avatar
 
Drives: 2008 E92 ///M3 Alpine White
Join Date: Oct 2009
Location: SoFla - Bonita Springs

Posts: 2,702
iTrader: (21)

Good to know, thanks guys
__________________

2008 E92 ///M3 Alpine White//Fox Red//6MT//
Florida Bimmer - Join us on FaceBook!
Krozi is offline   Germany
0
Reply With Quote
      04-18-2010, 07:50 PM   #11
FruitCake
Banned
 
Drives: '10 E92 M3
Join Date: Nov 2008
Location: Los Angeles

Posts: 1,680
iTrader: (19)

7th gear no rumbling























wait wat?
FruitCake is offline   Taiwan
0
Reply With Quote
      04-18-2010, 07:58 PM   #12
CarForHire
Major
 
CarForHire's Avatar
 
Drives: Slow in the left lane.
Join Date: Nov 2009
Location: NOVA

Posts: 1,298
iTrader: (0)

Garage List
2007 E90 328i  [0.00]
__________________
Race car driving is like sex...all men think they are good at it. - Jay Leno
CarForHire is offline   United_States
0
Reply With Quote
      04-18-2010, 08:27 PM   #13
Krozi
Deutsche Jung aus Kölle
 
Krozi's Avatar
 
Drives: 2008 E92 ///M3 Alpine White
Join Date: Oct 2009
Location: SoFla - Bonita Springs

Posts: 2,702
iTrader: (21)

Quote:
Originally Posted by FruitCake View Post
7th gear no rumbling
wait wat?
__________________

2008 E92 ///M3 Alpine White//Fox Red//6MT//
Florida Bimmer - Join us on FaceBook!
Krozi is offline   Germany
0
Reply With Quote
      04-18-2010, 08:43 PM   #14
Richbot
Colonel
 
Drives: Jerez Black E90
Join Date: Sep 2007
Location: STL

Posts: 2,014
iTrader: (2)

FWIW, I'm almost never in 5th for more than a few seconds anyway, if that. Just like every BMW I've ever owned, this engine is as happy to putter along at 1500rpm as it is to run up to redline. So, I select the tallest gear possible once I get to whatever cruising speed I'm going to be driving, even if that's only 40mph. Only time I foresee needing 5th is at 142mph (8300 rpm in 4th).

If you pay attention to how automatic transmissions shift, this is a large part of why they are starting to get higher EPA ratings than manuals in some models, including some BMW's. Most people just don't drive their manual cars like that, and the testing reflects "typical" driving behavior.
__________________
Richbot is offline  
0
Reply With Quote
      04-18-2010, 08:52 PM   #15
Krozi
Deutsche Jung aus Kölle
 
Krozi's Avatar
 
Drives: 2008 E92 ///M3 Alpine White
Join Date: Oct 2009
Location: SoFla - Bonita Springs

Posts: 2,702
iTrader: (21)

Quote:
Originally Posted by Richbot View Post
FWIW, I'm almost never in 5th for more than a few seconds anyway, if that. Just like every BMW I've ever owned, this engine is as happy to putter along at 1500rpm as it is to run up to redline. So, I select the tallest gear possible once I get to whatever cruising speed I'm going to be driving, even if that's only 40mph. Only time I foresee needing 5th is at 142mph (8300 rpm in 4th).

If you pay attention to how automatic transmissions shift, this is a large part of why they are starting to get higher EPA ratings than manuals in some models, including some BMW's. Most people just don't drive their manual cars like that, and the testing reflects "typical" driving behavior.
Yea I usually select the highest gear when I am crusing, but when I'm driving at night with all the cops out with instant on I don't speed, so when I'm in 6th at 50mph, I am hovering at 2000rpm so it droooones lol... "Sorry officer, if I don't speed, my car rumbles"
__________________

2008 E92 ///M3 Alpine White//Fox Red//6MT//
Florida Bimmer - Join us on FaceBook!
Krozi is offline   Germany
0
Reply With Quote
      04-18-2010, 11:06 PM   #16
elp_jc
Brigadier General
 
Drives: .
Join Date: May 2008
Location: .

Posts: 4,910
iTrader: (0)

Quote:
Originally Posted by Krozi View Post
I don't speed, so when I'm in 6th at 50mph, I am hovering at 2000rpm so it droooones lol...
Do you have an exhaust that haven't put in your signature? There's no drone stock.

Tried 50 to 60 mph in 5th, and couldn't hear any 'whine'. Lowered window and even less, due to wind noise. But for what I read is simply harmonic resonance, which is perfectly normal. It's a lot more noticeable on motorcycles, due to less engine isolation. The solution is to just go right past it.

Drove with the window open (I'm almost always on the highway... or too hot or too cold for that) for the first time, and man, this engine sounds FANTASTIC outside too (inside is perfect). I thought it was much quieter. Glad I decided to keep it stock. And I didn't go over 5K rpm. Only thing is I decided to work on the myriad rattles and noises; it's just ridiculous how many creaking noises this car makes. Geez. Started by removing the 3rd brake light. Remember the cover making a racket when I was snapping it back, and it does. Just touch the roof where the rear roof console is and the cover makes a racket. And I bet that's the noise I thought was coming from the moonroof. Will put masking tape on all tabs and reinstall it. There's another inside the center console that's driving me nuts, but will probably have to remove it. Need to investigate where is coming from. Oh well. Car is a gem to drive.
elp_jc is offline   United_States
0
Reply With Quote
      04-19-2010, 03:31 AM   #17
SenorFunkyPants
Colonel
 
SenorFunkyPants's Avatar
 
Drives: E92 DCT M3
Join Date: Mar 2009
Location: UK

Posts: 2,460
iTrader: (0)

Quote:
Originally Posted by elp_jc View Post
There's another inside the center console that's driving me nuts, but will probably have to remove it. Need to investigate where is coming from. Oh well. Car is a gem to drive.
In that area a common noise is from around the centre air vents...pushing down on the trim in front of the idrive screen will normally stop it momentarily. If so its a common problem and should be known to your dealer.
SenorFunkyPants is online now   United Kingdom
0
Reply With Quote
      04-19-2010, 04:15 AM   #18
ooowowizstev
Brigadier General
 
Drives: '08 E92 M3
Join Date: Jul 2008
Location: Los Angeles, Irvine

Posts: 4,190
iTrader: (4)

Garage List
2008 BMW E92 M3  [5.00]
DCT FTMFW! Lol had to...
__________________
'08 E92 ///M3 - AW/BLK/CF, M-DCT, 19's
H&R, Vorsteiner, Eisenmann, BMC, BBS More to come...
ooowowizstev is offline  
0
Reply With Quote
      04-19-2010, 05:54 AM   #19
Krozi
Deutsche Jung aus Kölle
 
Krozi's Avatar
 
Drives: 2008 E92 ///M3 Alpine White
Join Date: Oct 2009
Location: SoFla - Bonita Springs

Posts: 2,702
iTrader: (21)

Quote:
Originally Posted by elp_jc View Post
Do you have an exhaust that haven't put in your signature? There's no drone stock.
Yea I have been too lazy to update my sig, there is a whole bunch of stuff that I need to add to it :P
__________________

2008 E92 ///M3 Alpine White//Fox Red//6MT//
Florida Bimmer - Join us on FaceBook!
Krozi is offline   Germany
0
Reply With Quote
      04-19-2010, 03:45 PM   #20
CarForHire
Major
 
CarForHire's Avatar
 
Drives: Slow in the left lane.
Join Date: Nov 2009
Location: NOVA

Posts: 1,298
iTrader: (0)

Garage List
2007 E90 328i  [0.00]
Quote:
Originally Posted by Richbot View Post
FWIW, I'm almost never in 5th for more than a few seconds anyway, if that. Just like every BMW I've ever owned, this engine is as happy to putter along at 1500rpm as it is to run up to redline. So, I select the tallest gear possible once I get to whatever cruising speed I'm going to be driving, even if that's only 40mph. Only time I foresee needing 5th is at 142mph (8300 rpm in 4th).

If you pay attention to how automatic transmissions shift, this is a large part of why they are starting to get higher EPA ratings than manuals in some models, including some BMW's. Most people just don't drive their manual cars like that, and the testing reflects "typical" driving behavior.
Doesn't the auto E9x 328i stay at 5th gear unless you manually change it? When do you notice your engine starting to lug?
__________________
Race car driving is like sex...all men think they are good at it. - Jay Leno
CarForHire is offline   United_States
0
Reply With Quote
      04-19-2010, 04:05 PM   #21
JOHNBMWM5
Live for today tomorrow never comes
 
JOHNBMWM5's Avatar
 
Drives: 2015 M6 GC CP
Join Date: Jan 2008
Location: UK

Posts: 5,245
iTrader: (0)

Quote:
Originally Posted by Krozi View Post
Before we start, I welcome any DCT shit posting, after all the shit I posted about 6spd being better, I have it coming

So when going about 45-55 I get a rumble in 5th gear, and only 5th gear...as soon as I put the clutch in, it's gone, or if I go to 6th or 4th, it also goes away...just wondering what it could be....It's pretty slight so I don't know what it could be...

Any help?

Thank you

-Krozi
It's a shaft support gear worn in the gearbox, take it in.
JOHNBMWM5 is offline   United Kingdom
0
Reply With Quote
      04-19-2010, 07:49 PM   #22
AMOCHOSTO
Major
 
AMOCHOSTO's Avatar
 
Drives: IB BB E90 M3
Join Date: Jan 2009
Location: Toronto.

Posts: 1,007
iTrader: (0)

I checked mine for the noise today, I don't have it. Could be worth checking.
__________________
E90 Interlagos Blue, (Winter Beater) Bamboo Beige, M-Drive, EDC, PDC, USB 6MT.
Mods to date; Curb rash, Scraped front spoiler, Installed RAC Monolite RG63 Silver
1984 Porsche 911 Carrera Coupe (ROW)

AMOCHOSTO is offline   Canada
0
Reply With Quote
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 05:31 AM.




m3post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST