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2008 Saab 9-3 Base 4dr Sedan

2008 Saab 9-3
Trim Info:
Front Wheel Drive, 4 Door Sedan, Compact
19 mpg city / 29 mpg hwy
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September 2, 2009, 11:52 am

Gary G
 

Question: Mist coming from vents/coolant level light

There are two issues that might (or might not) be related. Occasionally, mist comes out of the vents. Also, sporadically, the low coolant level warning comes on but the coolant level is fine.


September 3, 2009, 2:49 pm

Tyler O
Expert Mechanic

Mist comes out of the vents into the car? Does it smell like coolant or it's it at hot steam at all?

If not, it's probably a drainage problem with the AC.

If it does appear to be coolant, you might have a leak that's spraying mist/steam and getting sucked into the vents as you drive, unlikely, but possible.

You would however notice a loss in coolant and a strong coolant smell if this is the case.


If it's not a coolant leak, the low coolant warning might be a result of a bad sensor, bad connection, or small air bubbles in the coolant passing the sensor.

Make sure the sensor is good, bleed all air from cooling system.


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