I'm restoring a 1983 380SEC. When I took the bottom of the dash down this plug fell down, anyone know what it is? Aslo wondering what the metal tube and sensor thing under the headliner is for. Thanks

Attached Thumbnails

   

The metal tube/sensor is probably part of the climate control system. Air drawn past the sensor through the tube helps the sensor read the temperature of the passenger compartment more reliably.

The other cable/connector does not look factory; it might have been for an added-on alarm, stereo, etc.

Jeremy

__________________

"Buster" in the '95

Our all-Diesel family
1996 E300D (W210) . .338,000 miles Wife's car
2005 E320 CDI . . 113,000 miles My car
Santa Rosa population 176,762 (2022)
Total. . . . . . . . . . . . 627,762
"Oh lord won't you buy me a Mercedes Benz."
-- Janis Joplin, October 1, 1970

aftermarket alarm and climate control sampler tube thingy

__________________
08 R320 CDI current

Past
95 E420
87 300D Turbo 5spd
90 300TE
83 300SD
85 300TD
92 400E
85 190D