Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSBMW2004320I (E46) (CANADA) L6-2.2L M54REPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGDESCRIPTION AND OPERATIONCIRCULATED AIR (IHKR INTEGRATED HEATING/AIR CONDITIONING OR IHKA INTEGRATED AUTOMATIC HEATING/AIR CONDITIONING)RECIRCULATED AIR
2004 BMW 320i (E46) (CANADA) L6-2.2L M54
Recirculated Air
2004 BMW 320i (E46) (CANADA) L6-2.2L M54SECTION Recirculated Air
Recirculated Air
Recirculated air
The system assumes recirculated air mode by pressing the recirculated air button. As a result, the left and right fresh air/recirculated air flaps are closed. The flaps are opened again fro fresh air operation by pressing the button once more. Recirculated air mode is indicated by an LED in the recirculated air button.
The setting on the operating unit for recirculated air mode is saved for 15 minutes after ignition off (exception: Memory function for tropics). The operating unit setting is lost after 15 minutes and must be reselected after switching on the ignition.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.