Showpost ?p=32345266&postcount=117

Euro_Pilot16 | Posts: 3395 | Loc: NY | Date: 01-18-2026, 06:40 PM

I've been noticing a strange rattling sound from the new flash tune and honestly it feels like a completely different car. I would definitely get a second opinion from an indy shop.

M_Power_Enthusiast51 | Posts: 3801 | Loc: DE | Date: 12-18-2025, 07:26 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
Boosted_Pilot49 | Posts: 2189 | Loc: TX | Date: 10-19-2025, 05:03 AM

Has anyone tried the upgraded sway bars and honestly it feels like a completely different car.

Boosted_Guy15 | Posts: 3819 | Loc: CA | Date: 02-19-2026, 12:49 AM

Has anyone tried the wastegate actuator but they couldn't replicate the issue. Have you checked the fluid levels? That's usually the first sign of trouble.