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      11-16-2018, 08:52 PM   #1
brettcp
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What suspension components should be replaced at 100k miles?

My 2012 E93 M3 is coming up on 100k miles soon.. Non-EDC. What suspension components should be replaced as preventative maintenance at this mileage (if any?)? I have no interest in adjusting ride height, I like to leave the car as stock as possible, just want to maintain the factory ride quality. Shocks/struts/bushings/etc?

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      11-16-2018, 11:59 PM   #2
pbonsalb
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Pretty much everything you have not replaced already.
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      11-18-2018, 08:29 AM   #3
VictorH
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I think it depends on your driving and your roads. It could very well be that nothing needs replacing. Suspension components tend not to suddenly experience total failure, they degrade over time. In addition each of those components can easily be inspected (as opposed to rod bearings), so in general I wouldn't suggest willy nilly replacing suspension components.

My example, I have an 09 M3 that has seen several track events per year for it's entire life. I just replaced most all of my front end suspension at 110,000 miles, just like you as preventative maintenance. However, my parts all looked good, no worn our bushings, nothing sloppy or loose, the only exception was my aftermarket camber plates were making some noise, but still functioned okay. My justification was that aluminum can fatigue when subjected to repeated high loads so it might be reasonable to consider some sort or routine replacement, however, I haven't seen any postings of track cars having tension arm or other parts failures (unless it was used as a tie down location for towing).

I'd say either inspect it yourself or have it inspected and if it's all okay, then you have lots more miles to travel before you replace anything.
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