I'm trying to replace the headlight rotary switch in my 1990 350 SDL. Easy enough to loosen, twist, and detatch the switch from the dash, and then remove the panel immediately underneath the instrument cluster hoping to access the back of the switch.
No clue how to remove the tubular corregated heater ducting running the length of the driver's side (hidden by the panel just removed) to gain access to the back of the switch for removal. I could not find a procedure for this in my big gray official "shop" MB manuals for the 126.
Any suggestions on how to remove the heater ducting?