During a long period of disuseDuring a long period of disuse  - Automatic air conditioning* - For pleasant driving - Mitsubishi Carisma Owner's Manual - Mitsubishi Carisma

The air conditioning should be operated for at least five minutes each week, even in cold weather. This is to prevent poor lubrication of the compressor internal parts, and to maintain the air conditioning in the best operating condition.

If this procedure is not followed, the system may emit an unusual odour. This is not a fault in the system.

    See also:

    If the DPF warning display and check engine warning lamp illuminate at the same time during vehicle operation
    If an abnormal condition occurs in the DPF system, the DPF warning display and check engine warning lamp illuminate. Have the system inspected at a MITSUBISHI MOTORS Authorized Service Point. ...

    Cargo net*
    To use, attach the cargo net to the hooks as shown in the illustration. ...

    Cleaning the inside of your vehicle
    After cleaning the inside of your vehicle with water, cleaner or similar, wipe and dry in a shady, well-ventilated area. NOTE Always read the instructions on the cleaner label. ...