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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > All-Wheel-Drive (Xi / xDrive) Talk > Wierd suspension problem...



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      04-11-2012, 11:28 AM   #1
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Wierd suspension problem...

So my car has felt a bit loose lately over bumps at freeway speeds, this morning I took a sweeping corner at 80mph with a solid bump in the middle. Normally this doesn't feel pleasant, but the car is still planted. This morning the entire rear of the car got 'loose' or 'squirrely', it feels like something is busted in the rear suspension.

Anyone have any ideas of what it could be? I also noticed I can feel it a bit on bumps outside of a turn, just not nearly as much.
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      04-11-2012, 11:58 AM   #2
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My guess is bushings. Maybe toe links? If it gets squirrely during bumps, I bet your are having toe management issues. Just a hunch, though...

I bet the launches have taken their toll on the poor little bits of rubber.
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      04-11-2012, 12:40 PM   #3
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Quote:
Originally Posted by Doyle View Post
My guess is bushings. Maybe toe links? If it gets squirrely during bumps, I bet your are having toe management issues. Just a hunch, though...

I bet the launches have taken their toll on the poor little bits of rubber.
OK, something is broken on rear drivers side, not sure if the bushings can even do this but here is what I just did:

1. From 20mph in 2nd gear, full throttle, the entire rear of the car shifts to the right.
2. Angled my driver mirror so I can see the rear driver side wheel, when I hit the gas the tire angles in towards the rear passenger door...WTF!?!?!

I'm going to put it up on a jack when I get home and see what it looks like under there...
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      04-11-2012, 03:01 PM   #4
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I was going to say endlinks at first but since you're stating that the tire is angling in towards the passenger door, I'm more incline to say a trailing arm. Do you hear any rattling or clunking noise when you go over a bump?

Below is the suspension components of a 2008 335xi. the trailing arm is #11
#14 is the track strut which I don't think it would be and then there's the wish bone# 18

Hope you don't have a long way to drive. keep an eye on the wear. I'm suspecting you'll wear the inside of your rear tire if it's angled in like you say.. Good Luck

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      04-11-2012, 03:23 PM   #5
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Car is hardly driveable now, got under it and found both front arms connecting the wheels to the car are damn near broken in half!

Jeez I don't want to know what happens when they break while driving...
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      04-11-2012, 03:28 PM   #6
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You got duct tape in the car?... J/K...

Don't chance it and get it towed. Risking your life as well as others out there is not worth it. There's always tomorrow bro...
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      04-11-2012, 05:36 PM   #7
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Dealer was on my way home so I took side streets and kept it slow, we'll see what they say about it.
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      04-12-2012, 09:22 AM   #8
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Quote:
Originally Posted by mykal335xi View Post
Car is hardly driveable now, got under it and found both front arms connecting the wheels to the car are damn near broken in half!

Jeez I don't want to know what happens when they break while driving...
Wow, I didn't think it would be that bad. Glad you were able to swing by the dealer. Warranty? If not, M3 time!

The same thing that happens when you lose steering... Jesus take the wheel, lol.
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      04-12-2012, 03:09 PM   #9
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Fun stuff...
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      04-12-2012, 05:13 PM   #10
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What the what?? Any idea how this happened?
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      04-12-2012, 05:44 PM   #11
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Whoa!
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      04-12-2012, 06:24 PM   #12
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      04-17-2012, 12:34 PM   #13
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OP,
Did you ever get this fixed and/or find out what caused it?
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      04-17-2012, 01:01 PM   #14
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This happened to my friend's car when he 600lb of girls in his back seat!

Problem is it was only 2 girls!
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      04-26-2012, 01:17 PM   #15
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To those of you following this, the culprit was the dyno operator hooking up the straps where they shouldn't have gone. Needless to say he's covering the repair cost, I watched them hook up the straps but didn't crawl under the car to see where they were setup. Lesson learned...
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      04-28-2012, 07:39 PM   #16
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Quote:
Originally Posted by mykal335xi View Post
To those of you following this, the culprit was the dyno operator hooking up the straps where they shouldn't have gone. Needless to say he's covering the repair cost, I watched them hook up the straps but didn't crawl under the car to see where they were setup. Lesson learned...
Bad beginning, good ending! GL
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      04-29-2012, 12:10 PM   #17
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Quote:
Originally Posted by dangeris
This happened to my friend's car when he 600lb of girls in his back seat!

Problem is it was only 2 girls!
:
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