Heater/Air conditioningHeater/Air conditioning  - For pleasant driving - Mitsubishi ASX Owner's Manual - Mitsubishi ASX

The heater/air conditioning can only be used while the engine is running.

See also:

Air conditioning system refrigerant and lubricant recommendations
If the air conditioning seems less effective than usual, the cause might be a refrigerant leak. Have the system inspected by your authorized MITSUBISHI dealer. The air conditioning system in your v ...

Removing and installing the battery upper cover (Petrol-powered vehicles equipped with turbocharger)
Warning ► Turn the ignition key to the “LOCK” position on the vehicle. Make sure that your clothes cannot be caught by the fan or drive belt. Personal injury could result. To remove 1. ...

ASC warning display
If an abnormal condition occurs in the system, the following display/indicator will turn on. - ASC indicator - ASC OFF display/ASC OFF indicator Note ► The combination of items shown on ...