2002 Mercedes S-Class Owner's Manual - Page 180

The function switches off automatically: • if the electronic key in starter switch is turned to position 2, • after approximately 30 minutes (if residual engine heat utilization is selected on the optional rear air conditioner: after approximately 15 minutes), • if the battery voltage drops. Note: The battery symbol # will appear in the automatic climate control display some time before the residual engine heat utilization is switched off if the battery voltage drops. Switching the automatic climate control on and off To switch off: Press button M. The display shows "0". The fresh air supply to the vehicle interior is shut off. While driving, use this setting only temporarily, otherwise the windshield could fog up. To switch on: • press button M or P, • press one of the U buttons so that it pops out and then click it back in, • press one of the temperature selector buttons or the air volume switch. Automatic climate control Instruments and controls Operation Driving 177 Instrument cluster display Practical hints Car care Technical data Index