When your Audi check engine light flashes, it means there's a severe issue with your engine. This could be anything from a misfire to a transmission problem. If you continue to drive your car, it could cause significant damage to the engine.
Here are some things you should do if your Audi check engine light starts flashing:
Pull over to the side of the road as soon as possible.
Turn off your engine.
Wait for your car to cool down.
Call a tow truck to have your car towed to the nearest Audi dealership or qualified repair shop.
Tell them what happened and show them the flashing check engine light.
Don't drive your car again until the problem has been diagnosed and fixed.
Driving your Audi with a flashing check engine light is dangerous and could lead to expensive repairs. If you need to get your car to the repair shop, call a tow truck. Don't risk driving your car yourself.