Volvo Owners Club Forum - View Single Post - V50 Electrics :

Guru · Mar 15th, 2009, 21:57

Nope, no dash removal to reach the AQS.

It governs the air quality coming in from outside the car so logically it will be positioned outside the cabin, specifically in the air blower beneath the windshield in the engine bay, so to reach it, all you need to do is remove the windscreen wipers and the cowl, ie. the black plastic strip under the wiper arms.

There are four clips and two catches holding the cowl in place, it can be easily removed. Under it on one side /can't remember which side/ is the air blower with the AQS in its intake, you'll know it by sound once you turn on the blower inside the car.

Testing funcionality would be by spraying something smelly close to it but NOT directly on it! you will see that the air intake guards/dampers close automatically.

But i don't which odors trigger it's function, amonia and diesel fumes for sure.

Mar 15th, 2009, 21:57	#2
Guru Premier Member Last Online: Oct 25th, 2023 07:46 Join Date: Feb 2009 Location: Between chair and keyboard	Nope, no dash removal to reach the AQS. It governs the air quality coming in from outside the car so logically it will be positioned outside the cabin, specifically in the air blower beneath the windshield in the engine bay, so to reach it, all you need to do is remove the windscreen wipers and the cowl, ie. the black plastic strip under the wiper arms. There are four clips and two catches holding the cowl in place, it can be easily removed. Under it on one side /can't remember which side/ is the air blower with the AQS in its intake, you'll know it by sound once you turn on the blower inside the car. Testing funcionality would be by spraying something smelly close to it but NOT directly on it! you will see that the air intake guards/dampers close automatically. But i don't which odors trigger it's function, amonia and diesel fumes for sure. Last edited by Guru; Mar 15th, 2009 at 21:59.