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BMW 3-Series (E90 E92) Forum
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strut/shock mounts going bad?
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11-14-2012, 04:16 PM | #1 |
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strut/shock mounts going bad?
So i had kw coilovers, the front struts blew, i got them replaced and sold the set. I got the eibach pro system (dampers and pro kit springs) and they have been great for the last 6 or 7 months, but now the ride has all of a sudden in the past 2 weeks become bone jarringly harsh. It was stiff, but still compliant but something has changed. I thought maybe the struts blew again, but using the bouncy test, the struts do not seem blown at all. I was wondering if maybe it was the strut/shock mounts? I ordered a set of new front strut/shock mounts and am planning on having them installed to see if the problem goes away or if it is the strut assembly itself that is blown. If it does turn out to be the struts, i have a set of fresh stock sport struts and my stock springs i am thinking about putting back on with sp lowering perches.
Has anyone else had issues with the stock strut mounts?
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11-16-2012, 06:36 PM | #2 |
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Previous: 2008 e92 335i coupe: RB turbos, mach 116 race fuel, methanol, alot of boost. Previous: 2003 Honda Accord V6 coupe: AEM V2, zex 75 wet shot (sold) |
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11-16-2012, 09:39 PM | #3 |
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Drives: '08 E90 335i, '99 E36 M3
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I've had issues with mine making noise on rough roads (thumping, rubbery clunking).
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11-18-2012, 06:43 PM | #6 |
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no clunking over bumps, but it does clunk randomly sometimes (usually when im not going bumps and am doing parking lot speeds). I have fresh endlinks going on asap too lol.
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11-18-2012, 07:31 PM | #7 |
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My front strut mounts were gone at 75K mls. I replaced them with a revised part required by Tischer when ordering the old Performance Pkg suspension. When I had them out of the car, I found the bearings in both shot, one mount won't rotate at all by hand, the other jerkerly. The steering was definitely more fluid afterwards.
Soon after I installed the new mounts, I installed the SP lowering perches. When I did, I found that the pre-installed grease had migrated down into the retaining cup and left the top of the bearing exposed. I added, and pushed thru a bunch more bearing grease from the bottom (difficult to get to the top) so that the top of the bearing was covered. I suggest doing the same before reinstalling the old or new mounts. Last edited by AlanAZ; 11-18-2012 at 07:39 PM.. |
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11-19-2012, 11:20 AM | #8 |
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What should the strut mounts be torqued to?
When installing my kw's, I tightened them all I could but then they wouldn't spin freely. So I backed off on them just enough to where they spun free. |
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11-19-2012, 11:50 AM | #9 | |
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Do you have sport package on your E90 325i? What parts are needed to be upgraded in order to match with the old Performance Pkg suspension?
Thanks a lot. Quote:
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11-19-2012, 01:03 PM | #10 |
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I did the same for my AST's. Overtightening will cause them to make noise. A few people claim that it's close to impossible to overtighten them, even with an impact wrench. Sadly, that's not true. It's extremely easy to overtighten them.
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11-19-2012, 01:35 PM | #11 | |
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1. Performance suspension require a different upper mount which also should be used with coilover systems no matter what 2. Always research torque specs, it's there for a reason 3. Try to replace all suspension parts when upgrading to coils or shock n spring combos A. Bushings B. upper mounts n components 4. Get an alignment 5. If you drop your car too low expect early wear on suspension component |
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11-19-2012, 05:00 PM | #12 | |
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Quote:
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11-19-2012, 09:30 PM | #13 | |
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Quote:
From a forum post by Tischer for the Performance suspension: "Vehicles up to 6/2006 with sports suspension - require new guide supports" Last edited by AlanAZ; 11-20-2012 at 07:36 AM.. |
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