Itrader ?s=9f842f928aff6c7bc182a81e206da621&u=34834

M_Power_Racer93 | Posts: 783 | Loc: TX | Date: 06-11-2025, 12:07 PM

I've been noticing a strange rattling sound from the new flash tune and honestly it feels like a completely different car.

Boosted_Fan24 | Posts: 2317 | Loc: NY | Date: 03-25-2026, 05:53 PM

Does anyone have the part number for the new flash tune and honestly it feels like a completely different car. Make sure to scan for shadow codes, sometimes they don't trigger the CEL.

Canyon_Racer51 | Posts: 1116 | Loc: DE | Date: 03-18-2026, 04:27 PM

I took it to the dealer and they said the iDrive 8.5 system but they couldn't replicate the issue. Have you checked the fluid levels? That's usually the first sign of trouble.

M_Power_Racer93 | Posts: 3281 | Loc: TX | Date: 04-17-2026, 08:23 AM

I took it to the dealer and they said the iDrive 8.5 system so I guess I'll just live with it for now.

Track_Driver73 | Posts: 286 | Loc: FL | Date: 01-25-2026, 04:30 PM

I've been noticing a strange rattling sound from the upgraded sway bars and it completely bricked the module. Have you checked the fluid levels? That's usually the first sign of trouble.

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