I've been problem free so far with Stage 3.

I did get a "Chassis Stabilization Malfunction" warning a few weeks ago but it hasn't reappeared yet.

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2013 ///M5
Alpine White · Sakhir Orange Full Merino
Executive · Driver Assistance · B&O · 20" HRE P40SC · Akrapovic Evolution · H&R Springs · Many Euro Mods