I have an unhealthy fetish for the black interior on the 300 series. I recently purchased a 79 non-turbo 300 CD parts car with a black interior and have a 85 Turbo CD with a tan interior that I would like to pull. Can anyone foresee any problems? They look the same but I am extremely new at this and am probably overlooking something. I vaguely recall reading somewhere that the lower dash panel was different but of course I can't verify. Any comments or advice would be appreciated.

there should not be any difference in the dash panels.. . Never owning a coupe.. just making a logical guess since most of the W123 series is the same forward of the dash.

just be careful removing everything.. if you don't know how it comes off.. ask us.. I just swapped the entire interior(except the headliner) in my sedan.. boy was that fun.

id be interested in your palamino a pillars when you are done.

Id recommend taking the window regulators out and cleaning and regreasing them while you are in there. And condition the leather Tex at the same time.

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Current Stable:
1994 S500 v140, 210k miles, white with grey.

Former Mercedes in the Stable:
1983 300CD Turbo diesel 515k mi sold (rumor has it, that it has 750k miles on it now)
1984 300CD Turbo Diesel 150 k mi sold
1982 300D Turbo Diesel 225 sold
1987 300D Turbo Diesel 255k mi sold
1988 300 CE AMG Hammer 15k mi sold
1986 "300E" Amg Hammer 88k mi sold (it was really a 200, not even an E (124.020)
1992 500E 156k mi sold
etc.