what could be wrong when yo smell gas fumes each time you drive the car

What is your question?

I have 2016 mercedes slk 300 it smells like gas all while it is turned on and the is no code showing on the dash that something is wrong. The gas cap is secure. The smell is coming from the front end of the car

What makes this problem better or worse?

It smells worst when engine is turned on

How long has your 2016 Mercedes-Benz SLK300 had this problem?

about a month