Body and Interior Specific Aid

I am needing help I have slk 320merceds 2001, and It rattles when I accelerate, more.

My son is away at college with my 1987 190D. The trunk used to open, but lately the keyhole is in the horizontal position, the button will push in, but the trunk won't open. Yesterday he called and says that now the fuel filler door has locked itself and won't open. He's almost out of fuel and is threatening to take a hacksaw to it! Is this a vacuum problem? What should I do?

Hey there, So I've got an '84 300D Turbo, it sat for a bit (couple of weeks) with a half-full tank of B99, which then gelled in the cold Seattle weather, so I added some Diesel to it. Now it's got tons of black stuff in the pre-filter. I'm told this could be from condensation. I've literally been changing the quickly filling filter out every couple of times I drive it, to be safe. I'm not driving far, and it gets pretty black in those couple of trips. Sigh. So.... I read a few other things & places, and it seems this is an algae (fungus?) problem. I also read I should get various Biocides, and ended up with BioBor. I haven't added it to the tank yet, and have a couple of questions. If anyone can help I'd appreciate it. There is about a 1/4 tank in there now, should I:

I have 1992 300D and was wanting to take out the seatbelts to clean them . Does anyone know how to do this?