Air Distribution

1994 Saab 9000 Hatchback L4-2290cc 2.3L DOHCSECTION Air Distribution





The air distribution control can be regulated to a number of detent positions between the four main positions.

A certain amount of air is always directed to the defroster vents in order to keep the windscreen and windows free from mist.

1 Position 0
All vents closed. No air distribution. No power to fan motor. Despite this there may be a draught when the car is driven. The air is forced in through the system by wind pressure.

2 Ventilation position.
Air from vents in facia. Small amount of leakage to defroster vents (felt at high fan speed).
Selectable fan speed.

3 Floor position.
Air from floor vents. Small amount of leakage to defroster vents (felt at high fan speed).
Selectable fan speed.

4 Defroster position.
Air from defroster vents.
Small amount of leakage to floor vents (felt at high fan speed).
Selectable fan speed.

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.