Home >> BMW >> 2012 >> 760Li >> Repair and Diagnosis >> Engine Performance >> System >> Self Diagnosis - N74 - Diagnostic Trouble Codes - DTC P2089 (BMW DTC 130001) Through DTC P144B (BMW DTC 193208) >> DTC P304D; BMW DTC 138701: Radiator shutter, top, upper stop: detected too early >> Fault code