Home >> BMW >> 2013 >> 535i Standard Trans >> Repair and Diagnosis >> Engine Performance >> System >> Self Diagnosis - N55 - Diagnostic Trouble Codes - DTC P1638 (BMW DTC 100001) Through DTC P10EB (BMW DTC 10BA41) >> DTC P00BD; BMW DTC 102A02: Mass or Volume Air Flow 'A' Circuit Range/Performance - Air Flow Too High >> Fault code