9000 Rear A/C

NOTE: It is not advisable to direct the center front vent diagonally upwards when rear A/C is used. If this is done, the air streams meet at the roof and cause cold air to drop on to the necks of the driver and passenger.

Rear Air Conditioning, M1992 Only
- 1-Vent, 2-Fan, 3-Evaporator, 4-Fan control module, 5-Refrigerant medium pipe, 6-Solenoid valve and 7-Air intake.

- Certain cars of year model 1992 were equipped with rear air conditioning (SAAB 9000 CD with ACC). This was to create a more even cooling of the cabin and in order to be able to reduce fan speed and maintain cooling.

- An evaporator with fan is located in the luggage compartment and draws air via an air intake under the rear seat. The air is cooled and channeled to a vent in the parcel shelf. Coolant is lead to and from the rear evaporator in two insulated pipes under the car. A solenoid valve under the rear evaporator ensures that the oil returns to the compressor when the rear A/C unit is switched off. Otherwise, the oil may remain stationary in the pipes causing compressor breakdown. The solenoid valve also prevents circulation of refrigerant.

- Other parts in the system are common to cars without rear A/C but the quantity of oil and quantity of refrigerant has been increased.