Home >> BMW >> 2012 >> X3 35i >> Repair and Diagnosis >> Engine Performance >> System >> Self Diagnosis - N55 - Diagnostic Trouble Codes - DTC P10C9 (BMW DTC 10BA42) Through DTC P0001 (BMW DTC 11C404) >> DTC P2177; BMW DTC 118F20: Mixture adaptation, lower speed range: mixture at part load too lean >> Fault code