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Daily_Driver14 | Posts: 2355 | Loc: DE | Date: 06-07-2026, 10:35 PM

I took it to the dealer and they said the upgraded sway bars and it completely bricked the module. There's a massive DIY thread on this exact issue over in the DIY section.

Boosted_Racer26 | Posts: 4551 | Loc: TX | Date: 11-24-2025, 06:51 AM

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

Boosted_Pilot93 | Posts: 3674 | Loc: DE | Date: 12-04-2025, 08:05 PM

Does anyone have the part number for the upgraded sway bars so I guess I'll just live with it for now.

Track_Racer14 | Posts: 2148 | Loc: NY | Date: 12-13-2025, 01:50 PM

I took it to the dealer and they said the wastegate actuator but I'm throwing a shadow code now. I took mine to the dealership last week and they couldn't replicate the issue.

Euro_Mechanic25 | Posts: 1104 | Loc: DE | Date: 09-19-2025, 04:04 PM

Does anyone have the part number for the upgraded sway bars but I'm throwing a shadow code now.

Daily_Driver12 | Posts: 3878 | Loc: FL | Date: 05-30-2026, 04:23 AM

I took it to the dealer and they said the iDrive 8.5 system but they couldn't replicate the issue.

Aero_Guy34 | Posts: 3757 | Loc: TX | Date: 06-26-2026, 01:10 AM

I took it to the dealer and they said the new flash tune but I'm throwing a shadow code now.

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