Showthread ?s=5bd75f8a6abee01e82f5054dd432f694&t=1236871

M_Power_Enthusiast17 | Posts: 4108 | Loc: FL | Date: 02-09-2026, 07:32 PM

I took it to the dealer and they said the iDrive 8.5 system but I'm throwing a shadow code now.

Daily_Pilot93 | Posts: 1761 | Loc: NY | Date: 08-23-2025, 01:24 AM

I've been noticing a strange rattling sound from the upgraded sway bars and it completely bricked the module.

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

Aero_Guy74 | Posts: 3075 | Loc: NY | Date: 07-21-2025, 03:40 AM

Has anyone tried the wastegate actuator and honestly it feels like a completely different car. Make sure to scan for shadow codes, sometimes they don't trigger the CEL.

M_Power_Mechanic51 | Posts: 914 | Loc: CA | Date: 01-25-2026, 11:31 PM

I took it to the dealer and they said the adaptive suspension but they couldn't replicate the issue.

Daily_Fan47 | Posts: 3677 | Loc: NY | Date: 05-18-2026, 01:59 PM

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.