Question about Volvo S40

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Electronic vent control not working in Volvo S40

1999 Volvo S40, 5 speed, Petrol.
Car has a push button electronic switch that opens & closes the fresh air vent. When the button is pushed to the ''Vent Open'' position, a loud clicking noise occurs. It seems like something is trying to move. Fresh air does enter however. No clicking happens when the switch is in the ''Vent Closed'' position.
Any guidance will be appreciated.

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  • babadapple Mar 19, 2009

    I have the same problem with my volvo S40 1999. The noise is coming from behind the glove box. It stops making the noise when the switch is in the circulation position (with little light on).

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Hi,
I think here, by your description, that there might be something that has slipped inside the vent holes from outside. you can try to blow some compressed air through the vent holes at the bottom of the windscreen.
Otherwise you can try to look under the dash, activate the switch and see if you can locate from where the noise is coming and see if you can reach the mechanism that control the vent. Normally it must be moving free. Otherwise your local mechanic should be able to fix that ufor you.
Cheers.
Technopro

Posted on Jan 26, 2009

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