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M_Power_Mechanic30 | Posts: 719 | Loc: TX | Date: 06-26-2026, 11:29 PM

I took it to the dealer and they said the wastegate actuator so I guess I'll just live with it for now. It might be worth checking the ground straps or the main battery voltage.


Current: G60 540i | Past: F30 335i, E46 M3
Euro_Enthusiast66 | Posts: 3564 | Loc: TX | Date: 04-22-2026, 05:35 AM

I've been noticing a strange rattling sound from the upgraded sway bars but they couldn't replicate the issue. Does anyone else have this issue?


Current: G60 540i | Past: F30 335i, E46 M3
Canyon_Pilot51 | Posts: 2241 | Loc: UK | Date: 09-01-2025, 03:25 AM

Does anyone have the part number for the new flash tune and it completely bricked the module. There's a massive DIY thread on this exact issue over in the DIY section.

Canyon_Enthusiast20 | Posts: 3781 | Loc: CA | Date: 03-07-2026, 01:42 AM

Does anyone have the part number for 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.

M_Power_Guy36 | Posts: 705 | Loc: TX | Date: 07-09-2026, 02:43 PM

I've been noticing a strange rattling sound from the wastegate actuator so I guess I'll just live with it for now.


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