SirEvan Posted June 30, 2015 Share Posted June 30, 2015 This is gonna be a dumb question, considering I do most of the work on my car myself, but I recently went in to try and get an alignment, and the shop couldn't do it because they said my rear lower control arm bushings were bad and needed to be replaced. I have no idea which part is the rear lower control arm (well I have an idea) but from googling, I'm getting mixed answers based on the image above, I believe it to be part #19, but some images on google show Part #4 as being the lower control arm, which should be the spring perch. Part # 4 has no bushings minus the ball joins that connect to the wheel carrier. Anyone familiar with BMW E90's that can point me in the right direction on which part i need to order? The parts list on real oem is less than telling: Link to comment Share on other sites More sharing options...
xendrome Posted June 30, 2015 Share Posted June 30, 2015 Maybe just get it up on jack stands and take a look at the bushings on them and see which one is shot. Link to comment Share on other sites More sharing options...
mulligan2k Posted June 30, 2015 Share Posted June 30, 2015 i would say 4 is the lower control arm, 3 is the bushing this image and page may help clarify things Link to comment Share on other sites More sharing options...
xendrome Posted June 30, 2015 Share Posted June 30, 2015 i would say 4 is the lower control arm, 3 is the bushing this image and page may help clarify things Per your link, [ 17 ] REAR SUSPENSION / REAR SUSPENSION / LOWER CONTROL ARM / LOWER CONTROL ARM and 20 appears to be the bushings? Link to comment Share on other sites More sharing options...
SirEvan Posted June 30, 2015 Author Share Posted June 30, 2015 looks like you guys are right http://www.ecstuning.com/BMW-E90-335i-N54_3.0L/Suspension/Control_Arm/ES57746/ The spring perch appears to be part of the lower control arm, however the mechanic at the shop didn't know what he was talking about because this doesn't come with bushings pre-installed like he claimed. bushings go in wheel carrier and frame it looks like. fun fun. Thanks! Link to comment Share on other sites More sharing options...
mulligan2k Posted June 30, 2015 Share Posted June 30, 2015 Per your link, [ 17 ] REAR SUSPENSION / REAR SUSPENSION / LOWER CONTROL ARM / LOWER CONTROL ARM and 20 appears to be the bushings? apologies, my first comment was about the original post's image, you are correct though: in the picture i posted 17 is the part, although the bushing for that particular part is 5. looks like you guys are right http://www.ecstuning.com/BMW-E90-335i-N54_3.0L/Suspension/Control_Arm/ES57746/ The spring perch appears to be part of the lower control arm, however the mechanic at the shop didn't know what he was talking about because this doesn't come with bushings pre-installed like he claimed. bushings go in wheel carrier and frame it looks like. fun fun. Thanks! swapping bushings out for new ones will be the easy bit, getting the bolts undone / supporting the springs weight might take some time to sort out Link to comment Share on other sites More sharing options...
SirEvan Posted July 3, 2015 Author Share Posted July 3, 2015 apologies, my first comment was about the original post's image, you are correct though: in the picture i posted 17 is the part, although the bushing for that particular part is 5. swapping bushings out for new ones will be the easy bit, getting the bolts undone / supporting the springs weight might take some time to sort out Yeah the spring perch is a b^@#h to support. I had to lower it to install my rear springs, it took me almost an hour to line the holes back up with the wheel carrier on one side. It takes like 2 jacks to get it right, plus a lot of pulling and prying. Link to comment Share on other sites More sharing options...
sc302 Veteran Posted July 3, 2015 Veteran Share Posted July 3, 2015 Could have used a spring compressor. Probably would have been easier to line up with the spring out of the way. Something like this. http://www.cjponyparts.com/eastwood-coil-spring-compressor-3-piece-external/p/EW49016/?year=1965&utm_source=google&utm_medium=merchant&utm_campaign=shopping&gclid=CLmP75qJv8YCFYsWHwodz5sAVQ Link to comment Share on other sites More sharing options...
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