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      07-13-2019, 01:05 AM   #1
taranfx
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Front control arm bushing leaking?

My mechanic told me that front left control arm bushing is leaking.
It looks like some dried-up black oil. Is it something that I should get serviced soon?

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2011 Z4 E89 35is 2016 435i GC m-sport

Last edited by taranfx; 07-14-2019 at 03:59 AM..
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      07-13-2019, 06:28 AM   #2
KennyP
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Cant see any of the pictures on your recent posts. Here and on the spring sag post aswell.

Our control arm bushings are fluid filled for comfort. Have had mine checked for leaks and mine are ok. If they break or leak i plan to change my arms with e90 M3 control arms
The arms are similar with M3 arms with the difference in bushings. M3 arms have balljoints and give better steering feel and some camber too.Also its claimed that they last longer aswell. They bolt straight in. There are aftermarket options for solid or poly bushings that replace old ones on existing arms. They are cheaper on parts cost but more work for the mechanic to install.

First link i found for the arms upgrade:
https://www.turnermotorsport.com/p-3...2-e9x/?pdk=AwE
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      07-14-2019, 09:14 AM   #3
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https://lucasautocare.com/bmw-repair...-arm-bushings/
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      07-16-2019, 09:01 AM   #4
Asbjorn
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You definitely need an alignment after installing the M3 control arms. The M3 tension struts are great as well. Still comfortable enough, and feel much better than stock. I also recommend doing rear subframe bushings. The stock ones are really soft. But you do get some additional vibration noise from the exhaust if you upgrade those.
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