BMW M3 Forum
BMW M3 Forum BMW M3 Gallery BMW M3 Reviews BMW M3 Social Groups BMW M3 Chat M3Forum Sponsors >>
Loading


Mobile M3forum
Go Back   BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X) > BMW M3 Discussions > E46 M3 (2001-2006)
Tire Rack Buy Winter Tires Now!
Not a member? Register Now!
Register Gallery All Albums Garage Search Today's Posts Mark Forums Read Calendar FAQ

E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


Reply
 
Thread Tools Display Modes
Old Wed, Sep-21-2011, 04:47:50 AM   #1
jfowler
Registered User
 
Join Date: Jul 2010
Posts: 218
Reputation: 0 jfowler is on a distinguished road

United States




Default Suspension issues?

Hey all, I've been searching around a lot, trying to find something that might be the cause for this little issue I've started noticing... my car seems like it's increasingly susceptible to grooves/ruts/irregularities in the road. When I'm coming to a stop and the road is grooved, I have to actively keep my hands on the wheel to stop from following the ruts... maybe it's because I drive on some pretty crappy, beat up streets, but it seems like it's been getting more pronounced, even happening at 45-50mph sometimes. I've been planning on changing my fcabs due to some clunking up front when I hit bumps, and I need to change my rotors, they're pretty beat, but other than that, I'm sitting on good suspension, new rtab's, etc. Could it just be that I need an alignment? I've already checked my air pressure, which is good all the way around.

Thoughts?
__________________

2002 TiAg, SMG, TCK coilovers, Racing Dynamics FSB, Enkei RPF-01, Wilwoods, GC Front sway, Borla/Gruppe M exhaust, aFe Intake kit, Vorsteiner and ACS carbon goodies, EAS Carbon interior trim.
Jump to top jfowler is offline   Reply With Quote
Sponsored Links
Register now and remove these ads
Old Wed, Sep-21-2011, 07:08:05 AM   #2
Foo2rama
2004 E46 M3
 
Foo2rama's Avatar
 
Join Date: Oct 2007
Age: 42
Posts: 4,271
In the garage:
Reputation: 0 Foo2rama is on a distinguished road
Location: Costa Mesa

United States




Default Re: Suspension issues?

If it is that bad Check fcabs, and alignment are the first steps. While checking fcabs check the rest of the front stuff like the ball joints etc.
__________________
__________________

2004 Mystic Blau Imola Rot ///M3 Coupe Manual converted from SMG in Dec 2017
Jump to top Foo2rama is offline   Reply With Quote
Old Wed, Sep-21-2011, 08:04:50 AM   #3
jfowler
Registered User
 
Join Date: Jul 2010
Posts: 218
Reputation: 0 jfowler is on a distinguished road

United States




Default Re: Suspension issues?

That's what I'm thinking... I'll have it up in the air this weekend doing the front brakes and flushing the brake fluid, so I'll check the fcab's. Can you think of anything else that would cause that? I think I'm going to swap out the steering couple just because it's cheap...
__________________

2002 TiAg, SMG, TCK coilovers, Racing Dynamics FSB, Enkei RPF-01, Wilwoods, GC Front sway, Borla/Gruppe M exhaust, aFe Intake kit, Vorsteiner and ACS carbon goodies, EAS Carbon interior trim.
Jump to top jfowler is offline   Reply With Quote
Old Wed, Sep-21-2011, 03:59:08 PM   #4
Foo2rama
2004 E46 M3
 
Foo2rama's Avatar
 
Join Date: Oct 2007
Age: 42
Posts: 4,271
In the garage:
Reputation: 0 Foo2rama is on a distinguished road
Location: Costa Mesa

United States




Default Re: Suspension issues?

It could also be the tires. Some are more susceptible to tramlining then others. And some can get worse as they wear.
__________________
__________________

2004 Mystic Blau Imola Rot ///M3 Coupe Manual converted from SMG in Dec 2017
Jump to top Foo2rama is offline   Reply With Quote
Old Wed, Sep-21-2011, 04:02:39 PM   #5
3XTreM3
V8 < I6
 
Join Date: Mar 2010
Posts: 442
Reputation: 0 3XTreM3 is on a distinguished road

United States




Default Re: Suspension issues?

yeah fcabs. I can always tell by actually stepping on the wheel, if it moves upon your entire body weight then you found your issue...!
__________________
/// M3 TiAG
Jump to top 3XTreM3 is offline   Reply With Quote
Old Wed, Sep-21-2011, 04:12:02 PM   #6
sicklyscott
Registered User
 
Join Date: Dec 2010
Age: 38
Posts: 210
Reputation: 0 sicklyscott is on a distinguished road
Location: Metuchen

United States




Default Re: Suspension issues?

I had that problem when my RTABs were bad. You may want to look into those as well if they were never changed.
Jump to top sicklyscott is offline   Reply With Quote
Old Thu, Sep-22-2011, 08:32:35 AM   #7
jfowler
Registered User
 
Join Date: Jul 2010
Posts: 218
Reputation: 0 jfowler is on a distinguished road

United States




Default

What do you mean by "stepping on the wheel"?

SicklyScott, I have a fresh set of powerflex rtab's in there, buy fcab's have been on my mind ever since I got the car...

Sent from my ADR6350 using Tapatalk
__________________

2002 TiAg, SMG, TCK coilovers, Racing Dynamics FSB, Enkei RPF-01, Wilwoods, GC Front sway, Borla/Gruppe M exhaust, aFe Intake kit, Vorsteiner and ACS carbon goodies, EAS Carbon interior trim.
Jump to top jfowler is offline   Reply With Quote
Old Thu, Sep-22-2011, 01:26:04 PM   #8
flipm3
E46 M3 | E90 M3
 
flipm3's Avatar
 
Join Date: Nov 2001
Posts: 7,856
Reputation: 0 flipm3 is on a distinguished road
Location: Chicago

Philippines




Default Re: Suspension issues?

Out of curiosity, what's the mileage on your car?

Some of the most typical symptoms of a worn FCAB are when braking, it tends to lean towards the affected side. Clunking is also commonly present.

Some other stuff worth looking at while you're under there are the ball joints of your Front Control Arms. That is why I asked about your mileage. It may be worth changing up quite a few things while you're there. A nice checklist could be:
  • Front Control Arms with Ball Joints
  • Tie Rods
  • Front Control Arm Bushings
  • Inspect sway bar end links which are also common to clunk
__________________

2004 E46 M3 6MT | Silver Grey . Cloth | My E46 M3 Build Thread
2009 E90 M3 DCT | Melbourne Red . Speed Cloth | My E90 M3 Build Thread
2002 E46 M3 6MT | Jet Black . Black Nappa | My E46 M3 Build Thread
2016 981 Cayman 6MT | White . Black | Coming Soon

POST YOUR DYNO GRAPH HERE: The Official Dyno Thread
Jump to top flipm3 is offline   Reply With Quote
Old Thu, Sep-22-2011, 03:28:59 PM   #9
sicklyscott
Registered User
 
Join Date: Dec 2010
Age: 38
Posts: 210
Reputation: 0 sicklyscott is on a distinguished road
Location: Metuchen

United States




Default Re: Suspension issues?

Since Flip opened this up, is there a way to change the ball joints without new control arms?
Jump to top sicklyscott is offline   Reply With Quote
Old Thu, Sep-22-2011, 03:32:41 PM   #10
flipm3
E46 M3 | E90 M3
 
flipm3's Avatar
 
Join Date: Nov 2001
Posts: 7,856
Reputation: 0 flipm3 is on a distinguished road
Location: Chicago

Philippines




Default Re: Suspension issues?

Quote:
Originally Posted by sicklyscott View Post
Since Flip opened this up, is there a way to change the ball joints without new control arms?
I don't think BMW sells just the ball joints. The only way to obtain them is through replacing the whole control arm though. Anyone please correct me if I'm wrong because you'll save me $600 haha...
__________________

2004 E46 M3 6MT | Silver Grey . Cloth | My E46 M3 Build Thread
2009 E90 M3 DCT | Melbourne Red . Speed Cloth | My E90 M3 Build Thread
2002 E46 M3 6MT | Jet Black . Black Nappa | My E46 M3 Build Thread
2016 981 Cayman 6MT | White . Black | Coming Soon

POST YOUR DYNO GRAPH HERE: The Official Dyno Thread
Jump to top flipm3 is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

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. The time now is 11:44:23 AM.


Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
M3Forum.com and M3forum.net is in no way sponsored, endorsed or affiliated by or with BMW NA / BMW AG or any of it's subsidiaries or vendors.
BMW and M3 (E90 M3 | E92 M3 | E93 M3 | E46 M3 | E36 M3 | E30 M3) are registered trademarks of BMW AG.
M3Forum Terms of Service
Copyright 1999-2017 M3Forum.com
Discussing Differential Seal Leak (with pictures) in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)