88 UNDERSTANDING YOUR INSTRUMENT PANEL
Upper Air Vents . . . . . . . . . . . . . . . . . . . . . . . . . 120Heated Rear Window (Optional) . . . . . . . . . . . 121Windshield Heater (Optional) . . . . . . . . . . . . . 121Residual Engine Heat Utilization (REST) . . . . 122
Air Conditioning, Regulated (Optional) . . . . . . 122Climate Control (on Vehicles with Air
Conditioning) . . . . . . . . . . . . . . . . . . . . . . . . . . . 123Dehumidification
(on Vehicles with Air Conditioning) . . . . . . . . 124Air Conditioner for the Rear Passenger
Compartment (Optional) . . . . . . . . . . . . . . . . . 125Air Recirculation . . . . . . . . . . . . . . . . . . . . . . . . 126Air Strainer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Electric Blower (Optional) . . . . . . . . . . . . . . . . . . . 128
Heater Booster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Auxiliary Heater – Water or Air Heater
(Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130Auxiliary Heater Switch . . . . . . . . . . . . . . . . . . 132Timer Auxiliary Heater . . . . . . . . . . . . . . . . . . . 132Settings with the Auxiliary Heater
switched on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Auxiliary Heat Exchanger in Load
Compartment, only with Auxiliary Heater
(Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Auxiliary Heater – Tips for Coping with
Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138Overheating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
