I found out on another forum that the gas door does not lock immediately, there is a 10min time delay.

2001 Volvo S60 T5 8K miles While showing off the car I found that the gas tank cover does not lock when the car is locked. I uncovered the locking mechanism through the trunk and found that if I manually engage the lock, the solenoid will unlock the door but will not relock it. It seems the solenoid...