Climate control question 124 300E

[Mr. BILL]

Greetings,

The climate control in my '91 300E isn't working properly. I removed the glove box and tested the lines at the manifold as suggested by others. I found that #1,4,6&7 won't hold vacuum.

My question is, can anyone identify which actuators these relate to? I plan on replacing the 4 that are hard to access, but I want to be sure if the other two need replacing.

Thanks