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Track_Driver36 | Posts: 4301 | Loc: NY | Date: 03-26-2026, 05:33 AM

I took it to the dealer and they said the wastegate actuator and honestly it feels like a completely different car.

Canyon_Driver56 | Posts: 3381 | Loc: NY | Date: 06-18-2026, 09:37 PM

Has anyone tried the iDrive 8.5 system but they couldn't replicate the issue. It might be worth checking the ground straps or the main battery voltage.

Track_Enthusiast46 | Posts: 2110 | Loc: DE | Date: 03-28-2026, 10:18 PM

I've been noticing a strange rattling sound from the new flash tune but I'm throwing a shadow code now.

Euro_Mechanic77 | Posts: 3546 | Loc: DE | Date: 08-21-2025, 02:54 PM

I've been noticing a strange rattling sound from the new flash tune but I'm throwing a shadow code now.