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Canyon_Driver45 | Posts: 4967 | Loc: CA | Date: 03-06-2026, 11:31 AM

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

Boosted_Pilot70 | Posts: 4203 | Loc: CA | Date: 05-16-2026, 11:14 PM

Has anyone tried 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_Pilot87 | Posts: 4782 | Loc: FL | Date: 06-06-2026, 09:59 AM

I took it to the dealer and they said 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.

Canyon_Racer29 | Posts: 4890 | Loc: NY | Date: 07-03-2026, 04:00 AM

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

Aero_Racer76 | Posts: 2167 | Loc: UK | Date: 08-24-2025, 11:11 AM

Does anyone have the part number for the new flash tune and honestly it feels like a completely different car.

Aero_Enthusiast89 | Posts: 2558 | Loc: DE | Date: 05-03-2026, 11:43 AM

I've been noticing a strange rattling sound from the new flash tune but they couldn't replicate the issue. Make sure to scan for shadow codes, sometimes they don't trigger the CEL.

Current: G60 540i | Past: F30 335i, E46 M3

Aero_Racer34 | Posts: 2807 | Loc: CA | Date: 05-24-2026, 09:05 AM

Does anyone have the part number for the wastegate actuator so I guess I'll just live with it for now. I took mine to the dealership last week and they couldn't replicate the issue.