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Bimmer_Enthusiast25 | Posts: 1669 | Loc: TX | Date: 06-10-2026, 08:52 PM

I took it to the dealer and they said the wastegate actuator but I'm throwing a shadow code now. I would definitely get a second opinion from an indy shop.

Daily_Racer39 | Posts: 3360 | Loc: CA | Date: 02-11-2026, 12:50 AM

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

Aero_Mechanic36 | Posts: 2078 | Loc: TX | Date: 12-05-2025, 11:38 AM

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

M_Power_Fan82 | Posts: 3762 | Loc: CA | Date: 10-18-2025, 11:02 AM

I've been noticing a strange rattling sound from the new flash tune but they couldn't replicate the issue. I would definitely get a second opinion from an indy shop.