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3-Series (E36) Chat relating to the BMW 3-Series from 1992-1999. Autodoodad Specific models include: BMW 316i, BMW 318i, BMW 318iS/ti, BMW 320, BMW 323, BMW 320, BMW 324, BMW 325, BMW 328.

 
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#1 (permalink) Old 10-10-2005, 07:31 PM
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Shaky steering

Can anyone tell me what they think could be wrong if my steering wheel shakes at 40mphs then smoothes out and the steering in general is quite vague. used:

thanks
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#2 (permalink) Old 10-10-2005, 07:51 PM
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Mine does the same. I just replaced my control arms with meyle metal balljoints and have new tires that i have had balanced twice. not sure why it does it.
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#3 (permalink) Old 10-11-2005, 07:39 AM
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Check your front control arm bushings, they probably need replacement. Symptoms include undesired front toe changes during cornering, vague and rubbery feel to steering, and exaggerated bump steer over rough pavement. Hope this helps

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#4 (permalink) Old 10-12-2005, 12:59 PM
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see when i replaced my control arms and bushings i still get it at 40 mph. o well, cause it used to be alot worse
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#5 (permalink) Old 10-12-2005, 01:26 PM
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Quote:
Originally Posted by Dudesky_E36
Check your front control arm bushings, they probably need replacement. Symptoms include undesired front toe changes during cornering, vague and rubbery feel to steering, and exaggerated bump steer over rough pavement. Hope this helps

Sounds like my symptoms exactly... Along with the shaking at 40mph. Funny that speed must generate some harmonic frequency in our cars, since all ours shake around 40mph.

'99 323i 5spd


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#6 (permalink) Old 10-12-2005, 05:30 PM
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right. im gonna change the bushes, apparently the 96+ e36 bushes fit and are much stronger.

It that doesnt work there must be something else, BMW's are supposed to be smoooooth!
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#7 (permalink) Old 10-12-2005, 08:16 PM
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Check your outer ball joints for play, a lot of the times that is usually the problem, along with the control arm bushings. The outer ball joints can be replaced without replacing the entire control arm, but chances are that if the outers are shot the inners are on their way out as well, which are permanently connected to the CA. Later this week I'm replacing both my CAs and using solid offset bushings and throwing some drilled rotors on as well. I'll let you guys know how it goes.

Stracer: did you check your wheels to make sure their properly balanced? you'd be suprised how much it can shake when the wheels/tires arent balanced.

Byron320i: The M3 bushings are much better than the regular e36 bushings. The 95 M3's are offset and the 96+ are centered

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-17" Staggered ///M Wheels w/ Michelin Pilot Sports - M3 Exhaust - Custom HID Install in Euro Ellipsoids - e39 M5 rear lip - Cross Drilled Zimmermans - Paint Matched bumpers and skirts - Euro Tails
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#8 (permalink) Old 10-12-2005, 08:26 PM
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Quote:
Originally Posted by red325ix
Check your outer ball joints for play, a lot of the times that is usually the problem, along with the control arm bushings. The outer ball joints can be replaced without replacing the entire control arm, but chances are that if the outers are shot the inners are on their way out as well, which are permanently connected to the CA. Later this week I'm replacing both my CAs and using solid offset bushings and throwing some drilled rotors on as well. I'll let you guys know how it goes.

Stracer: did you check your wheels to make sure their properly balanced? you'd be suprised how much it can shake when the wheels/tires arent balanced.

Byron320i: The M3 bushings are much better than the regular e36 bushings. The 95 M3's are offset and the 96+ are centered

I have had the tires balanced twice. I also had them check to see if one of the wheels were outta round and one was by like 25 %. The norm is pose to be like 10% from what i can remember.
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#9 (permalink) Old 10-12-2005, 10:05 PM
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i might as well add the obvious!!

check tires for bubbles and the rims for bends...

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#10 (permalink) Old 10-12-2005, 10:15 PM
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Get a wheel balance first... cheapest... if that doesnt fix it... look into ball joints and bushings and control arms.

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#11 (permalink) Old 10-14-2005, 05:57 PM
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I have the same issue. Took mine in to have the wheels balanced at a tire shop. They said there were flat spots in the tires that are causing the vibration at this speed. I had them rotate the tires & the problem seamed to move from the right front to the left front.
Also it has a different feal with different air pressures, so it does seam to be the tires in my case. Have not tried new rubber yet.
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