Hi everyone
After searching for a recent thread on how this can be resolved I thought I'd see if anyone else had a similar experience/fix.
On my 2014 Lexus IS300H, I've noticed that if if the A/C is on regardless of the air circulation setting it does not smell. However, as soon I switch the A/C off the smell that is emitted via the vents is vile. The A/C blows ice cold, but in the winter I do notice that the windows 'steam up' more often than in my previous car. Especially on the rear screen.
So far I've tried spraying the pollen filter area with Dettol Antibacterial along with each of the vents, followed by running the a/c on an off on a high heat setting for about 30 minutes. The pollen filter was changed recently and when I took that out there was no smell. I've also checked the small black rubber hose in the passenger side foot well, removed it and some water came out but quickly dried up in the recent heat.
I've read that spraying a specialist air con cleaner such as this (https://www.lexuspartsdirect.co.uk/parts/lexus-ux/lexus-ux-2018-present/lexus-ux-cooling-heating/lexus-air-conditioning-system-cleaner/) via the drain pipe could help, but not sure how big of a job it is to access the pipe from underneath.
Any advice or fixes will be appreciated. Thank you.