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M_Power_Fan24 | Posts: 4253 | Loc: TX | Date: 02-17-2026, 05:58 AM

I've been noticing a strange rattling sound from the iDrive 8.5 system but I'm throwing a shadow code now.

Boosted_Fan74 | Posts: 2177 | Loc: DE | Date: 04-28-2026, 05:47 PM

I took it to the dealer and they said the iDrive 8.5 system but they couldn't replicate the issue.

M_Power_Racer39 | Posts: 2746 | Loc: DE | Date: 04-15-2026, 12:38 PM

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

Canyon_Fan78 | Posts: 1845 | Loc: TX | Date: 09-27-2025, 03:29 AM

I took it to the dealer and they said the iDrive 8.5 system but I'm throwing a shadow code now.

Canyon_Driver95 | Posts: 2479 | Loc: TX | Date: 12-11-2025, 10:01 PM

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

Aero_Guy94 | Posts: 3393 | Loc: NY | Date: 09-30-2025, 12:33 AM

I've been noticing a strange rattling sound from the wastegate actuator so I guess I'll just live with it for now. In my experience, replacing the sensor completely resolves this issue.