D357A5 er en feil som er lagret i BMW-ens minne (en ISTA-feilkode, ikke en standard OBD-II P-kode).
Hva det betyr: Front brake-cooling air flap: invalid signal (status) — the DSC can't read the position of the electric actuator that opens/closes the active grille/brake-cooling shutters. Causes: failed/stuck actuator motor, damaged or corroded LIN wiring, or flaps physically jammed by ice/snow/debris.
