Greetings! I posted here recently about not being able to open the trunk or fuel door on my son's 1987 190D. The other day I borrowed a hand vacuum pump and drove over to his college to try to fix it. I found the actuator under the rear seat, disconnected the yellow tube that runs to the back and pulled a vacuum on it--still couldn't get into either. I'm sorry to say I had to take a hacksaw blade to the little stob that locks the fuel door. But I DON'T want to mess up his trunk latch, so do you have any suggestions on how I can get in? We tried to get in by removing the back seat but to no avail. Can you suggest anything? Also, where does the tube go that tees forward from the actuator under the back seat? It seems to be unattached, as I can blow freely through it. Thanks.....Regards......Snuf