Vacuum Line 1981 300D MB Help-Help I accidently pulled the green/yellow vacuum loose in the drivers compartment. I can't seem to see where it hooks up. I think that it is the vac. line for the air conditioner. The diagram shows a check valve with one line going to the air conditioner controls and the other to a storage tank. I don't have much hair on my head when I started but I have a lot less trying to stand on my head and find where the vacuum line connects. Any help would be appreciated....I am at my wits end. My wife keeps yelling that I should get rid of the car but I am always amazed at the Engineering in this old car. thanks paul ellis