279A00 er en feil som er lagret i BMW-ens minne (en ISTA-feilkode, ikke en standard OBD-II P-kode).
Hva det betyr: Active cooling air flap (radiator shutter): communication error between the engine ECU (DDE) and the flap actuator over the LIN bus. The shutter that regulates airflow through the grille isn't reporting back. Usual cause: LIN wiring/connector or the flap actuator.
