I have recently had exhaust fumes in my car, they seem to be coming in from the air vents, what would cause this and how would I fix it?
You have a bad gasket or corroded/cracked pipe in your exhaust system. Take it to a muffler shop or your mechanic and have it checked out. It’s not a DIY job if you haven’t worked on exhaust systems.
Open the windows and take it to a mechanic. Exhaust fumes can be deadly if inhaled enough.