Hi George,
I had to also replace this cable completely. Since the end of the cable that controls the air distribution is inside the box itself, you will need to remove the air distribution box completely. This is the box that sits below the dash and in-between the drivers and pass sides, on the trans hump. To do this job, I had to remove the control levers (and all other items that were in the way, radio, ect.) In my case, I also had to drop the air-conditioning unit out in order to get to the distribution box. The distribution box is held in place with, if I remember correctly, 4 bolts, which also hold the air vent channels in place. The hardest bolt to remove was the one on the drivers side. You will have to reach up under the dash and go by “feel”, since this bolt will not be visible.
Once the box is out, it’s a good idea to clean it up and replace the old foam insulation. With new insulation, you will get improved air flow to the windows and the air vents. This is a job that will require patience and one that is best to simply … take your time… In the end, you’ll be happy with the results.
Note: if your cable broke, you will need to buy a new one. The end that connects inside the air distribution box has a ring connection on that end. It connects to a “stub” on the inside of the box.
Good Luck!
Bob
bpossel (Memphis, TN.)
'71 280SL / '97 E320
