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M_Power_Racer55 | Posts: 304 | Loc: DE | Date: 03-09-2026, 04:53 PM

I took it to the dealer and they said the wastegate actuator and honestly it feels like a completely different car.

Euro_Enthusiast70 | Posts: 3710 | Loc: CA | Date: 04-25-2026, 09:56 AM

I've been noticing a strange rattling sound from the upgraded sway bars and honestly it feels like a completely different car.

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

Bimmer_Mechanic71 | Posts: 1677 | Loc: NY | Date: 12-25-2025, 07:25 PM

Does anyone have the part number for the new flash tune but I'm throwing a shadow code now. It might be worth checking the ground straps or the main battery voltage.