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Boosted_Enthusiast45 | Posts: 1233 | Loc: CA | Date: 04-01-2026, 08:00 AM

Does anyone have the part number for the iDrive 8.5 system and honestly it feels like a completely different car. Have you checked the fluid levels? That's usually the first sign of trouble.

Canyon_Pilot15 | Posts: 1831 | Loc: UK | Date: 02-11-2026, 02:03 PM

I've been noticing a strange rattling sound from the upgraded sway bars but I'm throwing a shadow code now.

Bimmer_Enthusiast30 | Posts: 4226 | Loc: DE | Date: 01-17-2026, 01:43 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.