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      05-30-2025, 12:50 PM   #6
RMNB
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Drives: 2021 M440xi BSM
Join Date: Jul 2013
Location: Maryland

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Quote:
Originally Posted by Jaizero View Post
Ozone generator.

Run it for 30 minutes with all the doors and windows closed and HVAC on max and recirculate.

Once it's finished, let the car air out for a few hours. Ozone is nasty to breathe and can cause irritation.
The above is a start. My situation was prior owners cigar smoke which was awful! I did everything possible: Cleaned every square inch of the inside literally! I shampooed the carpets, steamed the headliner and shampooed with a deodorizer again, changed the cabin filter, ran the ozone generator several times, sprinkled arm-n-hammer carpet (powder) and revacuumed. I spent a few weekends on this for hours and after all that I believe it's 95% better. Air freshners of course just mask the smell.
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