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      02-15-2021, 02:19 PM   #1
tobefair-idontcare
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Drives: BMW 340i
Join Date: Jun 2018
Location: D.C.

iTrader: (5)

Low Speed Suspension Rattle (help diagnosis)

I have a 17' 340i Xdrive w/ stock adaptive suspension and THP lowered on Dinan springs. For the last month or so, while going over bumps at low speeds, I'm getting some sort of persistent rattle most likely coming from the front suspension. The rattle only happens at low speeds and the sounds like a quick chattering like something is lose in the suspension or possibly wearing out. The car has 75k miles and I'm wondering if the adaptive struts are starting to fail. Does anyone know what it sounds like when the adaptive struts start to fail? Any ideas on what the rattling might be? Trying to self diagnosis before I go to a dealership and waste $200 just diagnosing the issue.

FYI, just replaced the sway bar end links less than 10k miles ago and it doesn't sound the same as when they wore out last time.

Any help would be great. Lastly, any suspension refresh tips would helpful, as well. What I might need to buy to freshen it up to like new condition.

Thanks!
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17' 340ix|Track Handling Package|MPPSK|MP Stage 2.5 ECU Tune|MP Stage 2 Trans Tune|AP Intake|763M Wheels
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