|
|
|
Post Reply |
|
Thread Tools | Search this Thread |
08-04-2013, 03:38 PM | #1 |
First Lieutenant
142
Rep 371
Posts |
Loud clunking noise in 6-spd transmission (updated with pics)
So everytime there's a load change, the drivetrain makes a loud 'thump' sound. This includes everytime I change gears, accelerating and decelerating. When letting off the gas at higher rpm's, the transmission gives a loud whining noise all the way down to idle. The car drives fine and the clutch is not slipping even at WOT in high gears.
The car is stock 2010 with 40,000 miles. The noise has only became much louder the last few days. I'm taking it to the dealership in the coming week. Hopefully whatever it is, will be covered under warranty. Any ideas guys? Last edited by Thik; 08-05-2013 at 12:25 PM.. |
08-04-2013, 05:53 PM | #3 |
Major General
541
Rep 5,498
Posts |
I am also thinking the thunk might be the diff but worth having the drivetrain checked out.
Jason
__________________
Instagram: jellismotorwerks |
Appreciate
0
|
08-04-2013, 05:57 PM | #4 |
General
68267
Rep 26,090
Posts |
Sounds nok...go asap to your BMW dealer !
__________________
"MAX VERSTAPPEN" IS THE 2021+2022+2023 F1 WORLD CHAMPION - #UnLeashTheLion
BPM DEV-Tune & DCT Software-Tune & Servotronic & coding ///Alpine HID Angeleyes ///Oem.exhaust mod. |
Appreciate
0
|
08-04-2013, 08:34 PM | #5 |
BimmerPost Supporting Vendor
3406
Rep 7,487
Posts |
Could be diff, something wrong with the pressure plate or clutch, or an issue with the transmission or engine mounts.
Might be something else but those are the first three that come to mind. |
Appreciate
0
|
08-04-2013, 08:49 PM | #6 |
Lieutenant General
7730
Rep 12,402
Posts |
Diff bolt maybe?
__________________
Current:
16 F82 M4 GTS, Black Sapphire/Black, DCT 08 E92 M3, Sparkling Graphite/Bamboo Beige, 6MT 07 E85 Z4M Roadster, Alpine White/Red, 6MT 99 E36 M3, Techno Violet/Dove Grey, 6MT |
Appreciate
0
|
08-05-2013, 12:16 PM | #7 |
First Lieutenant
142
Rep 371
Posts |
So after reading your posts, I did a search for Dif bolt breaking. It looks more and more like that's what happened. The differential bolt broke. It got worse after I gunned it and maybe loosened it up more.
Anyways, here are some pics that may give additional clues: Notice how the differential is not horizontal to the chasis. There's also a spot on the right that looked like rubbed against other metal. I'm going to take the car to the dealership this week since they are not open today. Will keep posted. |
Appreciate
0
|
08-05-2013, 12:22 PM | #8 | |
Banned
11
Rep 510
Posts |
Quote:
hard to tell due to the car being parked next to the curb like that, but I would be pretty confident (99%) that the diff bolt broke. Clunking is from the diff shifting and the whining is cause it's all out of alignment. Sucks to see but should be able to get fixed ASAP! (if not under warranty it's also a fairly easy job to do) |
|
Appreciate
0
|
08-06-2013, 04:25 PM | #9 | |
Hamann M3 Fan
302
Rep 2,884
Posts
Drives: E92 M3 & F10 M5
Join Date: Feb 2008
Location: Killeen, Texas
|
Quote:
take a look http://www.m3post.com/forums/showthr...=843389&page=4 Your Stealership should cover this under warranty, since its your first time.
__________________
JZB,6MT, My mods 360 Forged 20inch wheels,VF650 Supercharger custom tuned,ARH Long Tube Headers,Hamann CF roof spoiler,H&R springs,CF grills,Hamann rear trunk spoiler,Hamann Side Skirts, ARKYM full CF bumper, Gintani Race exhaust, ARH X-pipe catless,RPI scoops,AA SSK, Arkym CF Double Sided Vented Hood, |
|
Appreciate
0
|
08-07-2013, 01:46 PM | #11 | |
First Lieutenant
142
Rep 371
Posts |
Quote:
The dealership is booked up until Friday, so more waiting for me. |
|
Appreciate
0
|
08-07-2013, 10:50 PM | #12 | |
Brigadier General
919
Rep 3,458
Posts
Drives: Harrop E90 M3
Join Date: May 2011
Location: Colorado Springs
|
Quote:
|
|
Appreciate
0
|
08-07-2013, 11:50 PM | #13 | |
Banned
215
Rep 7,298
Posts |
Quote:
|
|
Appreciate
0
|
08-08-2013, 01:55 PM | #14 | |
Hamann M3 Fan
302
Rep 2,884
Posts
Drives: E92 M3 & F10 M5
Join Date: Feb 2008
Location: Killeen, Texas
|
Quote:
http://www.m3post.com/forums/showthr...=843389&page=4
__________________
JZB,6MT, My mods 360 Forged 20inch wheels,VF650 Supercharger custom tuned,ARH Long Tube Headers,Hamann CF roof spoiler,H&R springs,CF grills,Hamann rear trunk spoiler,Hamann Side Skirts, ARKYM full CF bumper, Gintani Race exhaust, ARH X-pipe catless,RPI scoops,AA SSK, Arkym CF Double Sided Vented Hood, |
|
Appreciate
0
|
08-08-2013, 11:17 PM | #15 |
Major
75
Rep 1,123
Posts |
diffff!
__________________
2008 E92 BMW M3 MR/BB 6MT
|Gintani Supercharged|Gintani X-Pipe|Stack Gauges|Volk TE37SL|BC Racing Coilovers|Nitto NT05R |BMW Performance Spoiler|BMW Performance Steering Wheel|BMW Performance Side Gills + Grilles|Mode Carbon V1 Endurance|IND Tri- Stitched Shift + Brake Boot - 566WHP, 371WTQ | |
Appreciate
0
|
08-14-2013, 05:47 PM | #16 |
First Lieutenant
142
Rep 371
Posts |
Update:
The clunking was due to the differential bolt being sheared off the bracket, causing the bracket to bang against the dif everytime there's a load change. Dealer replaced the bolt under warranty with no fuss. They inspected the bushing and said it was in good condition. |
Appreciate
0
|
08-18-2013, 03:45 PM | #17 |
Lieutenant General
590
Rep 15,818
Posts |
I notice it's primarily 6MT guys in this thread that has the diff bolt problems, has anyone with DCT encounter the same problem?
__________________
IG:d.violet.m3
|
Appreciate
0
|
08-19-2013, 03:22 PM | #18 |
Hamann M3 Fan
302
Rep 2,884
Posts
Drives: E92 M3 & F10 M5
Join Date: Feb 2008
Location: Killeen, Texas
|
The bushing was the problem the first 3 times no one look at the bushing.
__________________
JZB,6MT, My mods 360 Forged 20inch wheels,VF650 Supercharger custom tuned,ARH Long Tube Headers,Hamann CF roof spoiler,H&R springs,CF grills,Hamann rear trunk spoiler,Hamann Side Skirts, ARKYM full CF bumper, Gintani Race exhaust, ARH X-pipe catless,RPI scoops,AA SSK, Arkym CF Double Sided Vented Hood, |
Appreciate
0
|
Post Reply |
Bookmarks |
|
|