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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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Old 04-08-2009, 11:45 AM   #1 (permalink)
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suspension/handling question

Question: This car is new to me- so i can't compare with past performance, but when you hit bumps in the road- the car tends to "float" side to side. Could this be a torsion bar, bushings?? I just had a mechanical inspection, and passed with no problem. Any idea what ishould be looking into?
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Old 04-08-2009, 12:09 PM   #2 (permalink)
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sounds like your suspension is dead. shouldnt be floating around when you hit bumps
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Old 04-08-2009, 01:02 PM   #3 (permalink)
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A torsion bar, or twist beam is a semi independent rear suspension for front wheel drive cars. (It consists of trailing arms with the torsion beam running between a short distance back from the pivot point). BMW's have, of course, rear wheel drive with multi link, independent back suspension. If this is happening in the back, I'd have a look at the trailing arm and any lateral arm bushings. If it's the front, I'd start with the lower control arm bushings.
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Old 04-08-2009, 06:13 PM   #4 (permalink)
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Sounds like the rear trailing arm bushings are shot.....this is what happen with my car, whenever I hit bumps the rear end of my car would shift side to side....found this link & replaced the RTAB's & problem was solved....

Symptoms of bad trailing arm bushings include side movement of the rear end under acceleration, general looseness of the rear over bumps, and abnormal tire wear. These bushings will start wearing out after about 50,000mi, give or take. As you'll see in this DIY, I made a special puller/press tool for dealing with this stubborn bushing, but it wasn't good enough for removal. So I had to go butcher style, which is an option many choose instead of paying out your ass for the tool

BMW E36 RTAB Without Special Tools

E36 RTAB DIY with BMW Tools w/ or w/o GC shims - Bimmerforums - The Ultimate BMW Forum

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Old 04-08-2009, 06:26 PM   #5 (permalink)
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Thanks great info! Definately on my list of things to do!
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Old 04-08-2009, 07:03 PM   #6 (permalink)
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also i would look in your trunk at your rear strut mounts. ive seen similar instances where cars would hop to one side when they hit bumps because they mounts were punched through and there was no dampening on one side of the car...
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Old 04-08-2009, 08:54 PM   #7 (permalink)
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could be totally blown shocks as well
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