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Message: <blockquote data-quote="wutty" data-source="post: 605538" data-attributes="member: 23492">Bro advocate, I had similar problem like yours but with my e39. I had both bumpsteer and rattling that sounds like a thick metal rod rattling in a plastic pipe when going over uneven road at low speed. Just like you I have replaced many parts including those you mentioned. When I first got my car 12mths ago, the problems were mild but after about 2-3 months they got worse and became very irritating, especially the rattling sound.Last week even after replacing the steering rack and coupling and new complete absorber+kits etc, still couldn't fix it. One night, this was a week after I left the car with my mechanic, he called me up and happily announced that he had finally found the source of the problem. (he has been trying for months, every tine I send my car in for service or repair, he would look into it)It was one of the upper control arm bush which I replaced when I first got the car.  They still appear to be in very good condition but a bit soft that allows excessive movement. My previous mechanic who replaced them told me that they were German product and the current mechanic says they look like Lemforder. So to be fair, they could be but I am not 100% sure it is Lemforder.He tried to get original BMW ones from Bavarian Auto, but they need to order from Singapore and it may take several days but I needed the car back already. So he searched the chop shops and found two good upper control arms with BMW bushes.He replaced them and now both the rattling and bumpsteer are gone. Hope this helps</blockquote>

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