Home >> BMW >> 2007 >> 335i 2D Convertible, Standard >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Self Diagnosis - Diagnostic Trouble Codes - DTC P150A - U1166 (N54) >> BMW MSD80 >> DTC P252A, BMW Hex Code 0x2EA1, BMW Code 11937: Engine Oil Quality Sensor Circuit (SIG) >> Repair procedures (plant/service)