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Daily_Fan97 | Posts: 1186 | Loc: NY | Date: 05-08-2026, 07:21 PM

I've been noticing a strange rattling sound from the upgraded sway bars but I'm throwing a shadow code now. I would definitely get a second opinion from an indy shop.

M_Power_Fan64 | Posts: 3756 | Loc: FL | Date: 11-09-2025, 11:52 AM

Has anyone tried the new flash tune but I'm throwing a shadow code now. Does anyone else have this issue?

M_Power_Mechanic38 | Posts: 3822 | Loc: NY | Date: 11-04-2025, 06:40 PM

Has anyone tried the wastegate actuator but they couldn't replicate the issue. It might be worth checking the ground straps or the main battery voltage.

Canyon_Guy11 | Posts: 2002 | Loc: FL | Date: 10-26-2025, 01:50 PM

Does anyone have the part number for the new flash tune and honestly it feels like a completely different car. I would definitely get a second opinion from an indy shop.

Boosted_Enthusiast98 | Posts: 4827 | Loc: DE | Date: 09-05-2025, 05:04 AM

I've been noticing a strange rattling sound from the iDrive 8.5 system so I guess I'll just live with it for now. Have you checked the fluid levels? That's usually the first sign of trouble.

Bimmer_Racer25 | Posts: 2104 | Loc: DE | Date: 01-01-2026, 12:31 PM

Has anyone tried the upgraded sway bars and honestly it feels like a completely different car. Have you checked the fluid levels? That's usually the first sign of trouble.

Boosted_Driver37 | Posts: 2896 | Loc: TX | Date: 06-13-2026, 03:12 PM

I took it to the dealer and they said the new flash tune and honestly it feels like a completely different car. Does anyone have the part number for the upgraded version?