: To prevent the build-up of CO2 and humidity inside the car, the system is programmed with a timer. For instance, at external temperatures above 6°C, the system may recirculate air for four minutes before briefly opening for one minute to refresh the cabin air. Part Identification and Compatibility
: If you smell diesel or gasoline fumes inside your BMW M6 even when the AC is on, the sensor has likely failed. M6 Auc 4s0101
: A faulty sensor can trigger "AUC Sensor" error codes when scanned with BMW diagnostic tools like ISTA or INPA. : To prevent the build-up of CO2 and
Over time, the chemical sensing element inside the AUC sensor becomes "poisoned" or worn out, losing its ability to distinguish between clean air and exhaust fumes. : A faulty sensor can trigger "AUC Sensor"
: It is typically a circular sensor weighing approximately 0.05 lbs . Why Replacement is Necessary
: 64116926460, 64116988303, and 64119136607.