I have Toyota vitz , and car is perfect (ALHAMDULILAH). Ac is good. But when AC is on and I stopped on signal and there is any diesel vehicle on front of me. I can feel smell of its diesel smoke inside car cabin( fresh air vent is closed). I checked that fresh air vent flip. It’s properly closing and opening.
Maybe the rubber or foam are weak on that flip. Anyone of you can guide how can I fix the issue