How do you open the gas tank on a 2004 porshe Boxster

l dont know, but in my 2004 Z06 CORVETTE that would put your boxter to shame. it is in the center console (theres a little button)

You petty gas thief. just because its an expensive car, it doesnt mean that the owner puts high grade gasoline in it. Buy a manual online and read that

Cut off the fuel pump first. Remove the metal tubes that are connected to the tank and then drop it.

l am not sure on the 2004.but my vintage porsche has a lever in the glove box. You might look there. Also.the filler cap on my mercedes locks and unlocks when you lock and unlock the doors.

You just press on the right of the flap. If the car is locked, the gas tank is locked though so make sure that the car is unlocked.