S 420 (140.043) V8-4.2L (119.981) (1996)
Housing Assembly HVAC: Description and Operation
Rear Air Conditioning Housing (Models with Rear A/C)
Rear Air Conditioning Housing
Purpose/Design
The rear air conditioning housing serves to hold the following components
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Blower (1)
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Evaporator (2)
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Heater core (3)
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Air distribution flap (4)
forming one complete unit.
The rear air conditioning housing serves for distribution of the air required for ventilation of the rear passenger compartment to the appropriate air
outlets depending on the desired temperature in the rear passenger compartment.
The air guidance is dependent on various operating states such as:
-
Normal operation
-
Cooling mode
-
Heating mode
Function
Rear air conditioning, normal operation