BMW M3 Forum (E90 E92)

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


Go Back   M3Post - BMW M3 Forum > E90/E92 M3 Technical Topics > Engine, Transmission, Exhaust, Drivetrain, ECU Software Modifications
 
Post Reply
 
Thread Tools Search this Thread
      10-19-2012, 10:45 AM   #1
mitch32
First Lieutenant
123
Rep
313
Posts

Drives: F82 ZCP
Join Date: Apr 2012
Location: Michigan

iTrader: (3)

6MT: Neutral to 1st Gear clunk, Normal?

When driving in traffic for extended periods I notice that when I clutch in and move the gear lever from neutral to 1st gear theres a slight clunk noise coming from the diff/transmission. Is this normal? theres no other weird noises coming from the car.
Appreciate 0
      10-19-2012, 11:40 AM   #2
MikeE92M3
Captain
MikeE92M3's Avatar
39
Rep
623
Posts

Drives: 08 E92 M3
Join Date: May 2012
Location: Richmond, VA

iTrader: (5)

This happens with me too. I just shrug it off as the nature of the drivetrain/lash.
__________________
2008 (07/08) E92 M3 BPM Stage II Tuned by Mike Benvo, 6MT, Turner Test Pipes, Magnaflow Custom Catback Exhaust (Magnaflow X Pipe, secondary cat delete, Aero Resonators and Helmholtz Chambers),Vorsteiner CF Lip, Hamann Style CF rear diffuser, CF Rear Decklid Spoiler, BMW Performance Kidney Grills, CF Side Grills, OEM GTS Wheels, K&N Drop-In Filter, GP Thunder 8k Angel Eyes, Painted Reflectors.
Appreciate 0
      10-19-2012, 12:02 PM   #3
M3PO
Colonel
M3PO's Avatar
83
Rep
2,792
Posts

Drives: '08 IB E92
Join Date: Sep 2011
Location: OC

iTrader: (7)

I have this also. It sucks but I think it's "normal".

I hate this transmission and I used to own a 350Z. I would have never imagined that there was a worse transmission out there let alone in a $70K BMW.
__________________
2008 IB E92 M3| BBS | KW | Arkym | Platte Forme A.G. | Active Autowerke | K&N | Fabspeed | Dinan | Evolve-R
Appreciate 0
      10-19-2012, 12:06 PM   #4
m3an
Banned
m3an's Avatar
39
Rep
1,590
Posts

Drives: M3
Join Date: Oct 2010
Location: South Florida

iTrader: (2)

yes totally normal drivetrain lash. Also if you put the clutch in a wait another milisecond prior to putting it in 1st you can eliminate the clunk.


on another note, you guys all need to drive hondas if you think an M shouldn't make all sorts of noises. Even the manual states that this car makes noise period.
Appreciate 0
      10-19-2012, 12:59 PM   #5
kchu221
JDM whore
kchu221's Avatar
South Korea
186
Rep
3,341
Posts

Drives: 2009 997.1 Turbo
Join Date: Jan 2012
Location: los angeles

iTrader: (11)

i occaionally get this noise also, i miss my s2k transmission...
__________________
2013 Lamborghini Gallardo LP550-2
Appreciate 0
      10-19-2012, 01:09 PM   #6
NYCM3ryder
Razzor
United_States
28
Rep
517
Posts

Drives: JB E90 M3
Join Date: Aug 2010
Location: New York City

iTrader: (0)

i too get that noise. it is normal sound just learn to deal with it. lol.
__________________

2011 E90, 6 speed, technology package, black 220 rims , EDC, moon roof, matt black grills, matte side grills, 15% carbon tints, carbon fiber M pedals, ACS roof wing, IND painted reflectors, mfest black gloss m3badges, Mfest side window stickers, Tuner MS 15mm spacers, Carbon fiber M foot pedals, MS air filter, RPI air scoops, euro switch mod
Appreciate 0
      10-19-2012, 03:24 PM   #7
gatorfast
Major General
gatorfast's Avatar
United_States
4969
Rep
6,854
Posts

Drives: 718 Cayman
Join Date: Jan 2008
Location: SoFla

iTrader: (4)

Quote:
Originally Posted by M3PO View Post
I have this also. It sucks but I think it's "normal".

I hate this transmission and I used to own a 350Z. I would have never imagined that there was a worse transmission out there let alone in a $70K BMW.
What's wrong with the 6mt? Mine shifts very smoothly and works just like it should

And to the OP, yea the clunk is normal.
Appreciate 0
      10-19-2012, 03:36 PM   #8
M3PO
Colonel
M3PO's Avatar
83
Rep
2,792
Posts

Drives: '08 IB E92
Join Date: Sep 2011
Location: OC

iTrader: (7)

Quote:
Originally Posted by gatorfast View Post
What's wrong with the 6mt? Mine shifts very smoothly and works just like it should

And to the OP, yea the clunk is normal.
Well, for starters, this clunk. Notchy/crunchy 1-2 shifts. Not wanting to go into first and reverse when cold. Lots of gear, flywheel, and throw out bearing noise.

How many miles you got? I'm at 54K, maybe yours just needs some time/miles.
__________________
2008 IB E92 M3| BBS | KW | Arkym | Platte Forme A.G. | Active Autowerke | K&N | Fabspeed | Dinan | Evolve-R
Appreciate 0
      10-19-2012, 05:46 PM   #9
gatorfast
Major General
gatorfast's Avatar
United_States
4969
Rep
6,854
Posts

Drives: 718 Cayman
Join Date: Jan 2008
Location: SoFla

iTrader: (4)

I'm about the same mileage as you. I find the M3 very easy to shift, especially coming from a z4m before.
Appreciate 0
      10-19-2012, 07:00 PM   #10
Grail05
Putcha ang ganda...
Grail05's Avatar
United_States
279
Rep
5,441
Posts

Drives: 17 F82 M4
Join Date: Feb 2010
Location: Los Angeles, Brea CA.

iTrader: (10)

yea its normal... its a on and off though ... depends on how you stopped and engaging the clutch... somehow inside the tran.. or diff makes the clunk sound...
__________________
Appreciate 0
      10-19-2012, 07:02 PM   #11
Grail05
Putcha ang ganda...
Grail05's Avatar
United_States
279
Rep
5,441
Posts

Drives: 17 F82 M4
Join Date: Feb 2010
Location: Los Angeles, Brea CA.

iTrader: (10)

Quote:
Originally Posted by kchu221 View Post
i occaionally get this noise also, i miss my s2k transmission...
yea tell me about it.. miss my s2k too... but hate the notchyness on the 2nd gear on the 2nd gear... even after replacing it with new synchro and fluid with friction modifier.... see my sig... thats how bad i miss mine..
__________________
Appreciate 0
      10-19-2012, 07:08 PM   #12
kchu221
JDM whore
kchu221's Avatar
South Korea
186
Rep
3,341
Posts

Drives: 2009 997.1 Turbo
Join Date: Jan 2012
Location: los angeles

iTrader: (11)

Quote:
Originally Posted by Sean05 View Post
yea tell me about it.. miss my s2k too... but hate the notchyness on the 2nd gear on the 2nd gear... even after replacing it with new synchro and fluid with friction modifier.... see my sig... thats how bad i miss mine..
is that how your s2k looked? it looks good... im planning on picking one up as a track car and fit it with j's racing wide body... hopefully in a couple monthes!
__________________
2013 Lamborghini Gallardo LP550-2
Appreciate 0
      10-19-2012, 07:35 PM   #13
MilehighM3
Brigadier General
MilehighM3's Avatar
United_States
910
Rep
3,452
Posts

Drives: Harrop E90 M3
Join Date: May 2011
Location: Colorado Springs

iTrader: (14)

Garage List
2009 E90 M3  [6.50]
It is normal. It's a characteristic of the variable M differential lock. You can also hear it in the parking lot rolling in first gear at idle and disengaging the clutch. The rattle at idle when hot is due to the use of a twin disc clutch. It's actually pretty quiet compared to the average aftermarket twin disc set up.
Appreciate 0
      12-20-2012, 12:55 AM   #14
posershadow
Registered
0
Rep
2
Posts

Drives: 2013 E92M
Join Date: Nov 2012
Location: LA

iTrader: (0)

I just picked up my new E92 6MT and I've got the same issue.

Starting from a stop in neutral, push in the clutch and shift into first and as I do that, you can feel it sort of clunk into gear. Doesn't grind, just sort of drops into it's notch with a clunk.

Then when rolling, the shift into second is the same thing, but a little worse, like a clunk clunk when pushing it into the notch. Probably the most difficult part of the tranny to learn because it sort of freaks you out when you feel that at first and you don't want to push it through the clunks too hard.

At first I thought, I guess I'm just not pushing it into the notch correctly, like at the wrong angle, or maybe I'm just not using the clutch correctly in those gears, but it appears that it's just a normal. I'm sure I'll get better at the shift into 2nd and the break in service will help. I was just mainly worried about the actual shifting into 1st and 2nd and why I was feeling clunks there, not so much about engaging and disengaging the clutch. It's all fine if it just clunks due to the rugged nature of the tranny, I can accept that, it's just interesting when you first learning to drive your new $70k+ car and you want to be as gentle as possible when figuring out the new tranny's behavior.
Appreciate 0
      12-20-2012, 11:53 AM   #15
Sully1Time
Second Lieutenant
Sully1Time's Avatar
United_States
109
Rep
249
Posts

Drives: 18' MR440i
Join Date: Aug 2012
Location: SoCal

iTrader: (7)

Garage List
The best way to eliminate the clunk is to drive the car like you stole it.
Clunk/notch is substantially less apparent when shifting at 4K-4.5K RPMs and up.

Its like the car is complaining your driving like a grandpa. I know its hard to rip around everywhere you go, but it pretty much eliminates the clunk/notch of the driveline/trans.

My car has a ton of driveline noise when putt'n around parking lots or just mellow driving to the store and back.

Hit the M button, right foot to the floor=clunk/notch gone!!!
__________________
24' DRAVIT GREY M60I MSPORT, MODS SURELY TO COME
Appreciate 0
      12-20-2012, 07:28 PM   #16
fordorobere
New Member
0
Rep
6
Posts

Drives: bmw
Join Date: Dec 2012
Location: for

iTrader: (0)

I find the M3 very easy to shift, especially coming from a z4m before.
__________________
Appreciate 0
      01-15-2013, 12:32 PM   #17
heartcolorgrey
Private First Class
heartcolorgrey's Avatar
United_States
8
Rep
140
Posts

Drives: '13 ZCP AW/Speed Cloth
Join Date: Nov 2012
Location: NY

iTrader: (0)

Quote:
Originally Posted by posershadow View Post
I just picked up my new E92 6MT and I've got the same issue.

Starting from a stop in neutral, push in the clutch and shift into first and as I do that, you can feel it sort of clunk into gear. Doesn't grind, just sort of drops into it's notch with a clunk.

Then when rolling, the shift into second is the same thing, but a little worse, like a clunk clunk when pushing it into the notch. Probably the most difficult part of the tranny to learn because it sort of freaks you out when you feel that at first and you don't want to push it through the clunks too hard.

At first I thought, I guess I'm just not pushing it into the notch correctly, like at the wrong angle, or maybe I'm just not using the clutch correctly in those gears, but it appears that it's just a normal. I'm sure I'll get better at the shift into 2nd and the break in service will help. I was just mainly worried about the actual shifting into 1st and 2nd and why I was feeling clunks there, not so much about engaging and disengaging the clutch. It's all fine if it just clunks due to the rugged nature of the tranny, I can accept that, it's just interesting when you first learning to drive your new $70k+ car and you want to be as gentle as possible when figuring out the new tranny's behavior.

+ 1

Just picked up friday, i was freaked out when shifting back into 1st after a rolling stop with not enough velocity to grab 2nd gear correctly.
I guess I'll just learn to accept the quirks and not freak out like I just abused my tranny/gear selector.
Appreciate 0
      01-15-2013, 02:37 PM   #18
Superfly_M3
Captain
72
Rep
959
Posts

Drives: 2011 M3
Join Date: Sep 2011
Location: Toronto

iTrader: (0)

I have no noises coming from my transmission. I have a ZHP shift knob though, which improved the feel and reduced the notchiness a lot. One out of ~60 shifts I will get a slight notch in the 2nd-3rd shift.

However when coasting in 1st gear at low speeds, and engaging the clutch I can gear noise. Mechanic said it was gear lash
Appreciate 0
      01-15-2013, 02:41 PM   #19
Bimmr7
First Lieutenant
United_States
205
Rep
300
Posts

Drives: E92 M3 Comp/G80 M3 Comp on Ord
Join Date: Nov 2007
Location: Germany

iTrader: (0)

Garage List
2013 BMW M3  [0.00]
2011 BMW 328  [0.00]
2010 BMW 335 M Sport  [0.00]
The manual states "you will hear a clicking noise, and it is normal."
Appreciate 0
      01-15-2013, 03:32 PM   #20
325rider
Captain
United_States
36
Rep
826
Posts

Drives: '11 e90 M3 6mt
Join Date: Aug 2010
Location: Miami, Fl

iTrader: (1)

Quote:
Originally Posted by m3an View Post
yes totally normal drivetrain lash. Also if you put the clutch in a wait another milisecond prior to putting it in 1st you can eliminate the clunk.


on another note, you guys all need to drive hondas if you think an M shouldn't make all sorts of noises. Even the manual states that this car makes noise period.
Exactly. I read the manuals thoroughly and it definitely states that the engine while make mechanical noises, cats will ping and sound metallic sometimes (esp. cold idle), and the gearbox/diff will clunk and ring as well

somewhat OT: are the sedan/coupe/vert M3 vehicle weights somewhere in the manuals? I cant seem to find em but found some info on BMWNA...
Appreciate 0
      01-15-2013, 06:49 PM   #21
thekurgan
Bad Lieutenant
thekurgan's Avatar
United_States
232
Rep
3,517
Posts

Drives: E90M3
Join Date: Aug 2007
Location: Sacramento

iTrader: (0)

Garage List
2008 BMW M3  [0.00]
Shift to 3rd quickly before shifting to first and it goes in like buttah.
__________________
02 E39M5 | TiAg/Schwartz | Tubi Rumore | Ultimate Ti Pedals | E60 SSK | Jim Blanton 3.45 40/100% | Coby Alcantara | StrongStrut STB
Appreciate 0
      01-15-2013, 09:10 PM   #22
Superfly_M3
Captain
72
Rep
959
Posts

Drives: 2011 M3
Join Date: Sep 2011
Location: Toronto

iTrader: (0)

Quote:
Originally Posted by thekurgan View Post
Shift to 3rd quickly before shifting to first and it goes in like buttah.
yup, I think its "clearing the syncros" or something like that. 1st, 3rd, and 5th.
Appreciate 0
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



All times are GMT -5. The time now is 08:02 AM.




m3post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
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