M6 Auc 4s0101 New |best| -

: When the sensor detects high levels of pollutants, it triggers the vehicle's climate control system to automatically switch from "Fresh Air" to "Recirculated Air" mode.

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The 4S0101 units are known to fail due to age, moisture ingress, or internal component burnout. Watch for: : When the sensor detects high levels of

Finding a listing for this chip that is usually means one of two things: m6 auc 4s0101 new