E46 BMW Social Directory E46 FAQ 3-Series Discussion Forums BMW Photo Gallery BMW 3-Series Technical Information E46 Fanatics - The Ultimate BMW Resource BMW Vendors General E46 Forum The Tire Rack's Tire Wheel Forum Forced Induction Forum The Off-Topic The E46 BMW Showroom For Sale, For Trade or Wanting to Buy

Welcome to the E46Fanatics forums. E46Fanatics is the premiere website for BMW 3 series owners around the world with interactive forums, a geographical enthusiast directory, photo galleries, and technical information for BMW enthusiasts.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact contact us.

Go Back   E46Fanatics > E46 BMW > ///M3 Forum

///M3 Forum
The BMW E46 ///M3 is the M version E46 and puts out an amazing 333 HP and 262 lb-ft of torque at stock specs! There are an amazing amount of modifications for both the coupe and convertible models so read up and get started modifying your cars today!

Reply
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 09-28-2012, 06:01 PM   #1
Cayne23
Registered User
 
Join Date: Sep 2012
Location: forest hill, md
Posts: 574
My Ride: 2002 m3 convertible
the "M" clunk theory.

I was playing with my car the other day driving around. I started to notice the clunk sometimes. More so in low gears. It almost feels as if the driveshaft goes into neutral in between shifting. Engages when clutch pedal is let out. Just a idea. My eclipse, like so many other eclipses', had a rattle sometimes when it was started. Turn off, restart, no rattle
Cayne23 is online now   Reply With Quote
Ads by Google

Guests, get your FREE E46Fanatics.com membership to remove this ad.
Old 09-28-2012, 10:00 PM   #2
Cayne23
Registered User
 
Join Date: Sep 2012
Location: forest hill, md
Posts: 574
My Ride: 2002 m3 convertible
Anyone have any ideas?
Cayne23 is online now   Reply With Quote
Old 09-30-2012, 06:17 AM   #3
greenhobby
Registered User
 
Join Date: Mar 2008
Location: Mass
Posts: 116
My Ride: 2002 e46 M3
Absolutely normal. The limited slip diff has adjusting mechanical bits in it and they (like the valve train) are loud sometimes. Are you using aftermarket diff fluid?

-gh
greenhobby is offline   Reply With Quote
Old 09-30-2012, 01:14 PM   #4
illestminimike
Registered User
 
Join Date: Jan 2012
Location: West Covina CA
Posts: 4,038
My Ride: Project Drama
It's just normal. Enjoy the clunk.
__________________
-2005 SMG ZCP Coupe
-1967 Mini Cooper
illestminimike is offline   Reply With Quote
Old 09-30-2012, 01:23 PM   #5
Bimmer4Lyfe
Registered User
 
Join Date: Nov 2008
Location: 129 West 81st St. 5A, New York, New York 10024
Posts: 2,474
My Ride: 02 325i
Nm
__________________

-j

Last edited by Bimmer4Lyfe; 09-30-2012 at 01:32 PM.
Bimmer4Lyfe is offline   Reply With Quote
Old 09-30-2012, 04:01 PM   #6
braymond141
Registered User
 
Join Date: Feb 2004
Location: Oakhurst, Ca
Posts: 1,755
My Ride: 96 M3, 98 M3, 01 M5
No this isn't quite "normal" as people make it out to be. Improper driveline maintenance and/or driving skills are to blame. A "normal M clunk" is almost nothing and only shows up quietly when you improperly shift. A well maintained driveline will be very solid and free of issues. This includes; motor mounts, transmission mounts, center support bearing, center support, giubo, differential bushings, differential bolts (which break), differential condition, subframe bushings, subframe pan, rear trailing arm bushings and ball joints. If you've owned a low mileage well cared for car you know what the E46 M3 is supposed to feel like. If you haven't and you have a 60k+ car, I suggest you start turning some wrenches to inspect each and every failure point.

Last edited by braymond141; 09-30-2012 at 04:05 PM.
braymond141 is offline   Reply With Quote
Old 09-30-2012, 09:03 PM   #7
Cayne23
Registered User
 
Join Date: Sep 2012
Location: forest hill, md
Posts: 574
My Ride: 2002 m3 convertible
I have all the oem fluids. I've been driving manuals for 20 years. Its not that im banging gears. Im shifting smoothly. I just think its a little engaging/disengaging of the driveshaft. The lsd idea seems to make sense too
Cayne23 is online now   Reply With Quote
Old 10-01-2012, 07:16 AM   #8
greenhobby
Registered User
 
Join Date: Mar 2008
Location: Mass
Posts: 116
My Ride: 2002 e46 M3
As I said, it's perfectly normal. To put yourself at ease, make sure your fluids are full (should be up to bottom of upper diff fluid hole) and seals are not leaking. At low speeds doing figure 8's and pressing clutch in and out, you will hear it (some say it sounds like a universal joint clunk).
greenhobby is offline   Reply With Quote
Old 10-01-2012, 09:13 AM   #9
S54Dan
Registered User
 
Join Date: Dec 2005
Location: Atlanta
Posts: 249
My Ride: '05 M3 '03 ZHP
A small clunking is normal, but if you are driving at very low speeds (parking lot) and you notice more clunking, I'd start by replacing your steering column guibo.
__________________

2005 M3 6MT | Weekend toy & Track rat
2003 330i ZHP 6MT | Wife Mobile
1994 325i 5MT | DD
Instagram @S54Dan

Last edited by S54Dan; 10-01-2012 at 09:13 AM.
S54Dan is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

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 On
Censor is ON





All times are GMT -5. The time now is 08:04 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
(c) 1999 - 2011 performanceIX Inc - privacy policy - terms of use