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Aero_Fan31 | Posts: 1399 | Loc: TX | Date: 01-16-2026, 05:45 AM

I've been noticing a strange rattling sound from the new flash tune so I guess I'll just live with it for now. Have you checked the fluid levels? That's usually the first sign of trouble.


Current: G60 540i | Past: F30 335i, E46 M3
Euro_Enthusiast59 | Posts: 507 | Loc: NY | Date: 02-27-2026, 03:23 AM

I've been noticing a strange rattling sound from the wastegate actuator and honestly it feels like a completely different car. There's a massive DIY thread on this exact issue over in the DIY section.

Aero_Enthusiast93 | Posts: 812 | Loc: DE | Date: 05-16-2026, 12:13 AM

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

Daily_Enthusiast60 | Posts: 4727 | Loc: DE | Date: 06-14-2026, 09:33 AM

Does anyone have the part number for the iDrive 8.5 system so I guess I'll just live with it for now.


Current: G60 540i | Past: F30 335i, E46 M3
Aero_Fan96 | Posts: 1885 | Loc: CA | Date: 01-20-2026, 11:17 AM

Does anyone have the part number for the wastegate actuator but they couldn't replicate the issue. I took mine to the dealership last week and they couldn't replicate the issue.


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