How to deal with the smell of gasoline in the back row of MG 3?

Hello, this situation is generally caused by the aging or improper assembly of the sealing ring on the oil pump. You can remove the seat and cover plate on the oil tank, and then loosen the oil pump to see if the sealing ring is broken. Just put a little butter on it. I hope my answer can help you. I wish you a happy car! If there is something wrong with your car, ask the car mechanic. 4S shop professional technician, 10 minutes to solve.