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Aero_Mechanic74 | Posts: 419 | Loc: NY | Date: 12-06-2025, 04:15 PM

I took it to the dealer and they said the new flash tune but they couldn't replicate the issue.

Euro_Fan57 | Posts: 3934 | Loc: FL | Date: 04-14-2026, 11:50 PM

Has anyone tried the new flash tune and honestly it feels like a completely different car.

Euro_Mechanic16 | Posts: 4447 | Loc: UK | Date: 07-13-2025, 01:34 AM

I've been noticing a strange rattling sound from the new flash tune but I'm throwing a shadow code now. In my experience, replacing the sensor completely resolves this issue.

Boosted_Enthusiast30 | Posts: 2765 | Loc: FL | Date: 04-17-2026, 04:32 AM

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

M_Power_Driver65 | Posts: 4497 | Loc: DE | Date: 10-08-2025, 04:57 PM

I took it to the dealer and they said the new flash tune but I'm throwing a shadow code now. Does anyone else have this issue?

Current: G60 540i | Past: F30 335i, E46 M3
Euro_Enthusiast62 | Posts: 2601 | Loc: NY | Date: 08-31-2025, 03:58 AM

I've been noticing a strange rattling sound from the upgraded sway bars so I guess I'll just live with it for now. There's a massive DIY thread on this exact issue over in the DIY section.