I recently purchased a 2012 Honda Civic (~36,000 miles). The AC will intermittently give off a paint thinner or magic marker smell. From what I understand, antifreeze has a sweet smell, and mold or mildew has a musty smell. It does not seem to be either of these smells; magic marker is probably the best description.
I am not entirely sure, but I suspect that this odor is emitted when the AC is recirculating the air. Also, I believe I am hearing a decompressing sound before I get a whiff of the odor, and it usually ends shortly thereafter.
I am just wondering if I am inhaling something unhealthy and if there might be a mechanical issue?
Here is a list of questions I have found from other people who seem to be experiencing the same issue:
Any insight would be appreciated.