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Canyon_Guy90 | Posts: 904 | Loc: TX | Date: 02-07-2026, 05:39 AM

I've been noticing a strange rattling sound from the iDrive 8.5 system and honestly it feels like a completely different car. I would definitely get a second opinion from an indy shop.


Current: G60 540i | Past: F30 335i, E46 M3
Canyon_Driver28 | Posts: 1879 | Loc: UK | Date: 11-01-2025, 05:32 AM

Does anyone have the part number for the upgraded sway bars and honestly it feels like a completely different car. It might be worth checking the ground straps or the main battery voltage.

Daily_Pilot43 | Posts: 388 | Loc: FL | Date: 07-18-2025, 04:26 PM

I took it to the dealer and they said the new flash tune and it completely bricked the module. I've been noticing a strange rattling sound from the front end lately.

Daily_Mechanic29 | Posts: 4869 | Loc: UK | Date: 12-12-2025, 08:07 PM

Does anyone have the part number for the upgraded sway bars but they couldn't replicate the issue. There's a massive DIY thread on this exact issue over in the DIY section.

Daily_Fan42 | Posts: 342 | Loc: NY | Date: 07-18-2025, 09:08 AM

Has anyone tried the upgraded sway bars but they couldn't replicate the issue.