How to?: Defrost & Fresh air pod removal

[russb]

1985 300D California w/cat.
I have tested all 5 of the vacuum pods, and #38 defroster pod is bad (thought it was center vent, but that is ok)
Also #41 Fresh air flap pod is bad (right front, next to window and fender).
I looked at the MB manual but that's not much help.
Is there a how to do it that someone may have posted?
I looked at the stickys, but did not see anything on these two.
I do NOT like to Mickey Mouse things up, I want to do it right.
Looks like the linkage on the flap is the hardest to get off without breaking that plastic snapon part.
Before I order parts, what parts will I need (clips, etc.), and part #'s.
Looked on Fastlane, but did not see item #41.
All my vacuum lines are good to go, hard to believe after all these years.

Thanx all, this forum has kept my 80 300SD & 85 300D running for a very long time!