Question about 2008 BMW 528i Sedan

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Changed the 2 cabin air filters but bad odor still comes out vent

I recently changed the 2 cabin air filters in the 528i bmw but the air coming out of the vents is still foul. it smells bad sometimes like stale old air. when the AC is on, it disappears. any suggestions?

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If you run your Air cond on recirculate always try using an air sanitizer in your return vent. Or switch your A/C to outside air flow for for half an hour and raise the rear of your sunroof panel to vent the stale air do this till the smell dissipates and then close he sunroof and reset the A/C to recirculate if desired.

Posted on Jul 08, 2009

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