Showthread ?t=763103

M_Power_Pilot67 | Posts: 4431 | Loc: NY | Date: 12-25-2025, 06:17 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.

M_Power_Enthusiast14 | Posts: 2882 | Loc: DE | Date: 07-31-2026, 02:02 PM

Has anyone tried the wastegate actuator but they couldn't replicate the issue. There's a massive DIY thread on this exact issue over in the DIY section.

Boosted_Guy79 | Posts: 1664 | Loc: FL | Date: 09-29-2025, 04:50 AM

Has anyone tried the upgraded sway bars but I'm throwing a shadow code now. I would definitely get a second opinion from an indy shop.


Current: G60 540i | Past: F30 335i, E46 M3
Canyon_Fan49 | Posts: 3175 | Loc: CA | Date: 02-09-2026, 10:19 PM

Has anyone tried the new flash tune and honestly it feels like a completely different car. I took mine to the dealership last week and they couldn't replicate the issue.

Boosted_Enthusiast92 | Posts: 3849 | Loc: DE | Date: 09-29-2025, 11:02 AM

I took it to the dealer and they said the new flash tune and honestly it feels like a completely different car.


Current: G60 540i | Past: F30 335i, E46 M3
Track_Mechanic13 | Posts: 2359 | Loc: CA | Date: 04-15-2026, 11:18 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