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Jay
12-19-1998, 01:12 AM
I have a 90 535A with 65k miles. The steering wheel shakes noticeably whenever the car is around 60mph. I had the wheels balanced and had 4 wheel alignment but the problem is still there. I then took the car to the dealer for inspection, and the dealer said the front shocks needed replacing, so they did that, but that did not solve the problem either. Anyone with a similar problem? Solutions?<p>PS. Just found this site and love it.

David Chen
12-19-1998, 12:28 PM
The thrust-arm bushings need to be replaced. Get the ones for the 750iL as they're firmer.<p>On the off chance, you might also have a bent wheel. But the tech who did the re-balancing should have noticed that.<p>Cheers,<p>David<br>

Jay
12-19-1998, 02:56 PM
<i>: The thrust-arm bushings need to be replaced. Get the ones for the 750iL as they're firmer.<p>: On the off chance, you might also have a bent wheel. But the tech who did the re-balancing should have noticed that.<p>: Cheers,<p>: David<p></i>Thanks for your quick reply.<p>I'm not too sure it's bushings. Because the shimmy is only there at a certain speed range (55 - 60mph) can it still be bushings? I'm inclined to think a deteriorated bushing will cause a shake that will intensify with increasing speed. <br>Also the dealer's inspection did not indicate any need to change bushings.<p>Could it be the tires? They're Dunlop MD240s with about 10k miles. Can tires somehow get "unbalanceable" at a certain speed? Put in another way, does balancing mean that the tire is balanced for all speeds?<p>Let me know if your shimmy was also for a specific, narrow speed range, and how much the bushing change cost.<p>Cheers too,<p>Jay

Reuben
12-19-1998, 07:30 PM
I hade the same problem just a couple of months ago. Come to find out my tires were bad. one tire had belts seperating and the other tire was cupped. Replaced the two tires and my shimmy is gone!<br>Reuben<br>'93525ia

Phil Coppin
12-20-1998, 12:41 PM
David had it right.<br>This is a typical E34 problem that occurs at this speed range and, Yes, get the 750 bushings they are a direct replacement and a recognized problem solver. Even if you arent handy with a wrench, buy yourself a Bentley's manual to become a better consumer. Along with this board the Bentleys is a great source of knowledge, and remember, KNOWLEDGE IS POWER!<p>Phil C.<br>95 525i 5spd. Sharked

Vikram
12-20-1998, 06:08 PM
Jay,<p>It it the bushings, and yes they do cause the shake at certain speeds only. In fact my 93 525i used to do the same until I replaced the bushings. As for the dealers most of them are completely useless in figuring out this issue. Replace the bushings - you'll be glad you did. I ordered my bushings from Dinan - about $60 apiece. In fact I think you can get the 750 bushings for about half that(??). 2 hours labor if you don't want to put them on yourself. <p>Hope this helps.<p>Regards,<br>Vikram

Brian K
12-21-1998, 06:13 PM
Given your symptoms, my guess would be that it is NOT the bushings. My guess would be that it is still a wheel balance problem, or a bent wheel, or a flat spotted or bad tire, i.e. something wrong with the wheels/tires. Problems at a certain speed range is usually a balance problem (usually, but of course not only).<p>Of course, there is no harm in changing the bushings, except for the cost.<p>I went through the same problem on my car. Had the wheels balanced, etc. Problem was still there, so I changed the bushings, using 750 bushings. I did not mind doing it, because I did the labor myself, and the ball joint ends on my control arms were shot (the boots were torn, with lots of grit in them). So it did not cost that much, and it was a learning experience. Didn't solve the problem though! I had the wheels rebalanced at a shop that apparently knows how to balance better than the first shop, and my car is not solid as a rock.<p>Shimmy problems are difficult because there can be one (or more) cause(s). It very well could be the bushings (but which ones, upper or lower control arms?). The secret is to fix the problem as economically as possible. For that reason, I'd suggest re-trying the balancing.<p>(p.s. I am not a big fan of the D40M2 tire. I had them on my 911SC. When I did, I had a shimmy that I could not get rid of, despite numerous attempts at rebalancing. When I got new tires, the shimmy went away. Had the same tire-specific balancing problem on my 320i with the factory Continentals on it. Could not get rid of the shimmy until I got new tires).<p><br>: : The thrust-arm bushings need to be replaced. Get the ones for the 750iL as they're firmer.<p>: : On the off chance, you might also have a bent wheel. But the tech who did the re-balancing should have noticed that.<p>: : Cheers,<p>: : David<p>: Thanks for your quick reply.<p>: I'm not too sure it's bushings. Because the shimmy is only there at a certain speed range (55 - 60mph) can it still be bushings? I'm inclined to think a deteriorated bushing will cause a shake that will intensify with increasing speed. <br>: Also the dealer's inspection did not indicate any need to change bushings.<p>: Could it be the tires? They're Dunlop MD240s with about 10k miles. Can tires somehow get "unbalanceable" at a certain speed? Put in another way, does balancing mean that the tire is balanced for all speeds?<p>: Let me know if your shimmy was also for a specific, narrow speed range, and how much the bushing change cost.<p>: Cheers too,<p>: Jay<p>

Jay
12-23-1998, 11:23 PM
Thanks for your info. I'm thinking more and more that it's my tires. Everything else has been checked (suspension and wheels).<p>I do remember an article that appeared on the front page of the Wall Street Journal a few years back (95?) about the same steering wheel shimmy on the S-Class Benz which went away only when the tires were changed. MB USA's explanation was that the above-average weight of the car had a damaging effect on the tires.<p>I don't think the 535 is excessively heavy but it can create serious cornering load on a tire. If MD240's are indeed prone to losing shape/balance then that's probably what happened.<p>I like the performance of the MD240 but they don't last - about 25k miles for me. My current set have about 10k miles to go so I think I'll just wait till they wear out. For my next set I'll probably get Pirellis or Michelins. <p>Going back to you, what brand did you get to replace your problem Dunlops and Continentals?<p>Happy Holidays,<br>Jay

Jay
12-23-1998, 11:32 PM
<i>: Given your symptoms, my guess would be that it is NOT the bushings. My guess would be that it is still a wheel balance problem, or a bent wheel, or a flat spotted or bad tire, i.e. something wrong with the wheels/tires. Problems at a certain speed range is usually a balance problem (usually, but of course not only).<p>: Of course, there is no harm in changing the bushings, except for the cost.<p>: I went through the same problem on my car. Had the wheels balanced, etc. Problem was still there, so I changed the bushings, using 750 bushings. I did not mind doing it, because I did the labor myself, and the ball joint ends on my control arms were shot (the boots were torn, with lots of grit in them). So it did not cost that much, and it was a learning experience. Didn't solve the problem though! I had the wheels rebalanced at a shop that apparently knows how to balance better than the first shop, and my car is not solid as a rock.<p>: Shimmy problems are difficult because there can be one (or more) cause(s). It very well could be the bushings (but which ones, upper or lower control arms?). The secret is to fix the problem as economically as possible. For that reason, I'd suggest re-trying the balancing.<p>: (p.s. I am not a big fan of the D40M2 tire. I had them on my 911SC. When I did, I had a shimmy that I could not get rid of, despite numerous attempts at rebalancing. When I got new tires, the shimmy went away. Had the same tire-specific balancing problem on my 320i with the factory Continentals on it. Could not get rid of the shimmy until I got new tires).<p></i>Brian, in your third paragraph, last sentence did you mean to say your car is "now" solid as a rock? Just want to confirm that the re-balancing paid off.<br>Thanks, Jay

ron
12-29-1998, 12:49 PM
<i>: : The thrust-arm bushings need to be replaced. Get the ones for the 750iL as they're firmer.<p>: : On the off chance, you might also have a bent wheel. But the tech who did the re-balancing should have noticed that.<p>: : Cheers,<p>: : David<p>: Thanks for your quick reply.<p>: I'm not too sure it's bushings. Because the shimmy is only there at a certain speed range (55 - 60mph) can it still be bushings? I'm inclined to think a deteriorated bushing will cause a shake that will intensify with increasing speed. <br>: Also the dealer's inspection did not indicate any need to change bushings.<p>: Could it be the tires? They're Dunlop MD240s with about 10k miles. Can tires somehow get "unbalanceable" at a certain speed? Put in another way, does balancing mean that the tire is balanced for all speeds?<p>: Let me know if your shimmy was also for a specific, narrow speed range, and how much the bushing change cost.<p>: Cheers too,<p>: Jay<p></i>Jay,<br>Before you go for the bushings/labor...try this. Take the car to a different place and tell them you need the wheels balanced by their best technician. I had the same problem with my car at about 97k, and had just mounted a new set of Dunlops. Turns out they were off only about a quarter ounce on the rf wheel, and about a half ounce on the lf...it doesn't take much to throw these cars off at speed. Haven't had a problem with shimmy since, and haven't replaced the bushings yet, and i've got lots more miles than you. good luck.<br>ron<br>

Paul
01-16-1999, 07:25 AM
<i>: : : The thrust-arm bushings need to be replaced. Get the ones for the 750iL as they're firmer.<p>: : : On the off chance, you might also have a bent wheel. But the tech who did the re-balancing should have noticed that.<p>: : : Cheers,<p>: : : David<p>: : Thanks for your quick reply.<p>: : I'm not too sure it's bushings. Because the shimmy is only there at a certain speed range (55 - 60mph) can it still be bushings? I'm inclined to think a deteriorated bushing will cause a shake that will intensify with increasing speed. <br>: : Also the dealer's inspection did not indicate any need to change bushings.<p>: : Could it be the tires? They're Dunlop MD240s with about 10k miles. Can tires somehow get "unbalanceable" at a certain speed? Put in another way, does balancing mean that the tire is balanced for all speeds?<p>: : Let me know if your shimmy was also for a specific, narrow speed range, and how much the bushing change cost.<p>: : Cheers too,<p>: : Jay<p>: Jay,<br>: Before you go for the bushings/labor...try this. Take the car to a different place and tell them you need the wheels balanced by their best technician. I had the same problem with my car at about 97k, and had just mounted a new set of Dunlops. Turns out they were off only about a quarter ounce on the rf wheel, and about a half ounce on the lf...it doesn't take much to throw these cars off at speed. Haven't had a problem with shimmy since, and haven't replaced the bushings yet, and i've got lots more miles than you. good luck.<br>: ron<p></i>

Paul Chambers
01-16-1999, 07:33 AM
Before you spend any real cash on the bushings, this is a common fault and especially as you say it occurs at around 60mph. This points to the wheels being out of balance as forementioned. i have had the same problem,bmw 535i,and my local tyre specialist balanced my wheels on car using this neat machine and the problem has gone.<p><br>Paul, 535i `90<br>

Alex Goetze
01-20-1999, 06:04 PM
I have the same problem with my '92 525i. The front end starts to shimmy around 60-65mph.<p>I'm not sure if it's the tires since I just put new wheels & tires on it this last weekend. The problem is still there.<p>I'd appreciate any insight anyone has on this. I read somewhere that an on-the-car balance may fix the problem (where the wheels are balanced while still on the car). I haven't even looked into this. Thoughts?<p>-Alex<br>----------<br><i>: : : : The thrust-arm bushings need to be replaced. Get the ones for the 750iL as they're firmer.<p>: : : : On the off chance, you might also have a bent wheel. But the tech who did the re-balancing should have noticed that.<p>: : : : Cheers,<p>: : : : David<p>: : : Thanks for your quick reply.<p>: : : I'm not too sure it's bushings. Because the shimmy is only there at a certain speed range (55 - 60mph) can it still be bushings? I'm inclined to think a deteriorated bushing will cause a shake that will intensify with increasing speed. <br>: : : Also the dealer's inspection did not indicate any need to change bushings.<p>: : : Could it be the tires? They're Dunlop MD240s with about 10k miles. Can tires somehow get "unbalanceable" at a certain speed? Put in another way, does balancing mean that the tire is balanced for all speeds?<p>: : : Let me know if your shimmy was also for a specific, narrow speed range, and how much the bushing change cost.<p>: : : Cheers too,<p>: : : Jay<p>: : Jay,<br>: : Before you go for the bushings/labor...try this. Take the car to a different place and tell them you need the wheels balanced by their best technician. I had the same problem with my car at about 97k, and had just mounted a new set of Dunlops. Turns out they were off only about a quarter ounce on the rf wheel, and about a half ounce on the lf...it doesn't take much to throw these cars off at speed. Haven't had a problem with shimmy since, and haven't replaced the bushings yet, and i've got lots more miles than you. good luck.<br>: : ron<p></i>


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