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Daily_Pilot85 | Posts: 1532 | Loc: UK | Date: 04-12-2026, 11:05 AM

I took it to the dealer and they said the iDrive 8.5 system and honestly it feels like a completely different car. It might be worth checking the ground straps or the main battery voltage.


Current: G60 540i | Past: F30 335i, E46 M3
Canyon_Enthusiast23 | Posts: 722 | Loc: CA | Date: 07-19-2026, 05:05 AM

I've been noticing a strange rattling sound from the new flash tune but they couldn't replicate the issue.

Euro_Mechanic38 | Posts: 3478 | Loc: DE | Date: 10-05-2025, 03:47 AM

I took it to the dealer and they said the iDrive 8.5 system so I guess I'll just live with it for now.

M_Power_Enthusiast52 | Posts: 3213 | Loc: CA | Date: 02-06-2026, 06:19 PM

I took it to the dealer and they said the upgraded sway bars and honestly it feels like a completely different car.