Click to go to Forum Home Click to go to maXbimmer Home

Go Back   maXbimmer Forums > maXimum Tech > 7 series
User Name

Welcome to!

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!

Thread Tools Rate Thread Display Modes
Old 04-30-2008, 11:47 AM   #1
crusher's Avatar
Join Date: Oct 2002
Location: The boonies
Posts: 3,373
Send a message via Skype™ to crusher
Vibration issue after 100km/h

Hey Guys..

My Parents bought a 1998' 740i and they're having issues with vibration after 100km/h. The vibration got worse when they switch to summer tires, they had Autohaus BMW perform the alignment and they cant seem to fix the issue. Any idea whats wrong?

2013 Ford Focus SE
2011 Lincoln MKT
2003 Escalade 8 Seater of Fun - 251k and still running

2006 M5
2003 M3
2003 Civic Si
2000 M Coupe
1999 M3
1999 323i
crusher is offline   Reply With Quote
Old 04-30-2008, 12:29 PM   #2
2nd Gear Member
Join Date: Jun 2005
Location: Rochester, NY
Posts: 69
Bent wheels, Worn thrust arm bushings
Maxim is offline   Reply With Quote
Old 04-30-2008, 01:12 PM   #3
Gimme The Keys
Seven's Avatar
Join Date: Oct 2006
Location: GTA
Posts: 678
Could also be a worn strut. Worn suspension components = uneven wear on tires = vibration at certain speeds.
Seven is offline   Reply With Quote
Old 05-01-2008, 12:12 AM   #4
bimmerjoe's Avatar
Join Date: Jan 2008
Location: markham
Posts: 1,140
out of balance wheels/tires
1999 323i-sold
2001 540i M- Sport
bimmerjoe is offline   Reply With Quote
Old 05-01-2008, 02:03 AM   #5
♠ ♠ ♠
AceOfSpades's Avatar
Join Date: Aug 2006
Location: Creston, Iowa
Posts: 4,142
control arms?
AceOfSpades is offline   Reply With Quote
Old 05-12-2008, 11:56 AM   #6
West Side Forever!
oafguy's Avatar
Join Date: Mar 2004
Location: Brampton, Ontario, CA
Posts: 307
Send a message via MSN to oafguy Send a message via Yahoo to oafguy
I'd have to agree with this one. I had that problem at 100/km. got the wheels rebalanced and everything is sweet now.

Originally Posted by bimmerjoe View Post
out of balance wheels/tires
oafguy is offline   Reply With Quote
Old 05-14-2008, 11:03 PM   #7
Founder of GTA7's
740-iLL's Avatar
Join Date: Apr 2004
Location: Caledon
Posts: 1,090
I just got my 20" TIS Wheels put on and I am having some wierd vibrations similar to the OP, both in the steering wheel and in the seats, once I hit 70 km/hr all the way to 90 km/hr, but goes away after 90 and before 70.

went back to the place that installed them, they had balanced the tires infront of me, and they are perfect. he said that with the size of rims, and the low profile tires 245 / 40 / 20R, that it is common to have these vibrations. I'm VERY used too the smooth ride of the 7, and this feels too out of place.

Any idea's or concerns as to what could be causing this?
Follow me on Instagram @SEVEN40iL and Twitter @SEVEN40iL
740-iLL is offline   Reply With Quote
Old 05-15-2008, 03:30 PM   #8
2nd Gear Member
Join Date: Jun 2005
Location: Rochester, NY
Posts: 69
Originally Posted by 740-iLL View Post
Any idea's or concerns as to what could be causing this?
Worn thrust arm bushings are a very common cause of high speed vibrations on 5s and 7s.
Maxim is offline   Reply With Quote
Old 05-15-2008, 04:47 PM   #9
Driving in the fast lane
slemmer's Avatar
Join Date: Dec 2002
Location: Missed in 'sauga
Posts: 2,986
Try rotating the tires if they are not staggered. It could be belt issues.

'04 645cic
'05 GMC Sierra SLT Z71 CCSB 4x4
'00 740i Sport
slemmer is offline   Reply With Quote
Old 05-18-2008, 09:03 PM   #10
2nd Gear Member
S54's Avatar
Join Date: May 2006
Location: Bram
Posts: 272
Replica wheels will also contribute, my personal experience.
S54 is offline   Reply With Quote
Old 05-20-2008, 07:56 PM   #11
Join Date: Oct 2003
Location: Etobicoke, Ontario
Posts: 1,441
If the wheels are balanced and True, it could the the thrust arms!

Eibach-Koni-Bilstein-H&R-Powerflex-KW Suspension-OEM Parts+ MORE
RMPMOTORS is offline   Reply With Quote
Old 05-21-2008, 11:04 AM   #12
3rd Gear Member
Max_VQ's Avatar
Join Date: Aug 2007
Location: down by the river
Posts: 335
The above is good advice!
Also, make sure there is not any rust or debris on the hub where the wheel mounts. If there is use some 80 grit sandpaper to get it down to bare metal, and cover the hub with a little anti-seize.
Max_VQ is offline   Reply With Quote
Old 04-16-2011, 03:15 PM   #13
Keepin' It Fake.
chia's Avatar
Join Date: Apr 2004
Location: St. Catharines/Toronto
Posts: 1,279
Sorry to bump an old thread. I picked up 18" RSGT replicas for my e36 M3 yesterday.

While driving home, there is significant vibrations in the steering wheel and seat. It occurs at ~100km/h+... and the car somewhat pulls to the right.

At some points there is also a lot of sudden "bumps" and the car feels like it's rocking up and down.

From what i've read, since this occurred right after installing the new rims and tires - it's probably either bent rims or balancing.

I'm calling the guy back, but is the problem distinguishable when the vibration goes away if i'm turning? or on a bend on the highway?

*EDIT: My bad, I didn't know this thread was under 7 series.

Last edited by chia; 04-16-2011 at 03:36 PM.
chia is online now   Reply With Quote
Old 04-22-2011, 11:06 PM   #14
shelby guo
1st Gear Newbie
shelby guo's Avatar
Join Date: Apr 2011
Location: TORONTO
Posts: 16
wheel balance,check the bearing
shelby guo is offline   Reply With Quote
Old 04-22-2011, 11:35 PM   #15
2nd Gear Member
BimmerGuys's Avatar
Join Date: Aug 2010
Location: Toronto
Posts: 209
If its not the tires/rims/bearings/control arm it might be the frame itself. Any previous accident on the car?
Sell My Car Fast
BimmerGuys is offline   Reply With Quote

Thread Tools
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

Forum Jump

All times are GMT -4. The time now is 01:44 AM.

Powered by vBulletin® Version 3.8.1
Copyright ©2000 - 2016, Jelsoft Enterprises Ltd.
Maxbimmer Copyright 2001 - 2015