Home >> BMW >> 2012 >> X5 M >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Self Diagnosis - Diagnostic Trouble Codes - DTC P0035 - DTC P0480 (N63 & S63) >> Diagnostic Trouble Codes (DTCS) MSD85 - Bn2020 >> DTC P305E, BMW Hex Code 0x12BA02, BMW Code 1227266: O2 Sensor Temperature Measurement Operating Temperature during Warmup not Reached (Bank 2 Sensor 1) >> Breakdown instruction