Good used, leak free evaporator.  No corrosion visible.     I've tested it with pressure and it does not leak.

Please note part number should work in later w123 Mercedes made between 1982-1985.  Variations exist between some models within the w123 chassis depending on the year and earlier model w123's used a different sized evaporator.  I'm not exactly sure when that cutoff date is, so buyer can carefully view photos and ask questions prior to buying to confirm fitment.

This evaporator will not fit in some earlier model w123 vehicles made 1981 and earlier. 

If you're not sure if this evaporator will fit your vehicle, you can let me know your VIN and I can verify if this is indeed the correct evaporator core for your vehicle.  Certain earlier models of w123 may use a slightly smaller evaporator.  I've therefore provided measurements are given in the last four photos.  It is best for you to compare your dimensions against mine to make sure there is no fitment issue.  I measure the center (rectangular) section of the evaporator, not including the coils.  

Measurements of center section of the evaporator (approximate):

19.25 inches (49 cm) long

3.75 inches (9.5 cm) wide

5 inches (12.7 cm) wide