M6 Auc 4s0101 !!install!! May 2026

: Often produced by HELLA (OEM) or directly as a genuine BMW part.

The "AUC" acronym stands for Automatische Umluft Control (Automatic Recirculation Control). In modern BMW M6 models, this sensor acts as a gateway for the IHKA (Integrated Automatic Heating and Air Conditioning) system. M6 Auc 4s0101

: 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 : Often produced by HELLA (OEM) or directly

: A faulty sensor can trigger "AUC Sensor" error codes when scanned with BMW diagnostic tools like ISTA or INPA. at external temperatures above 6°C