Mercedes W123 C123 AC Climate Control 1238301285 81 82 83 84 85 240D 280CE 300 D CD TD All buttons work no longer own car so unable to test was removed from running car years ago and kept in dry storage as a spare part. Dusty from storage some paint missing or rubbed off from buttons  look at pictures closely. may work in 107 and 126 Mercedes as well please check yourself. Thanks