ttucker 2, since the type 3 AC system uses a circuit box behind the glove box with the resistor on the fender in the engine compartment which you say you do not have. That means yours should be type 1 or 2 and the resistor is in the heater box inside the dash. Check [http://www.peachparts.com/Wikka/W123Evaporator|on here] and check image 115 and 122 for the location. [http://www.epartsland.com/products/mercedes-123-blower-fan-speed-switch-resistor-240d-280d-280e-280cd-300d-300td-0008212760-000-821-27-60|This is] what the part looks like.
+
ttucker 2, type 3 AC system uses a circuit box behind the glove box with the resistor on the fender in the engine compartment, which you say you do not have. That means yours should be type 1 or 2 and the resistor is in the heater box inside the dash. Check [http://www.peachparts.com/Wikka/W123Evaporator|on here] and check image 115 and 122 for the location. [http://www.epartsland.com/products/mercedes-123-blower-fan-speed-switch-resistor-240d-280d-280e-280cd-300d-300td-0008212760-000-821-27-60|This is] what the part looks like.
ttucker 2, since the type 3 AC system uses a circuit box behind the glove box with the resistor on the fender in the engine compartment which you say you do not have. That means yours should be type 1 or 2 and the resistor is in the heater box inside the dash. Check [http://www.peachparts.com/Wikka/W123Evaporator|on here] and check image 115 and 122 for the location. [http://www.epartsland.com/products/mercedes-123-blower-fan-speed-switch-resistor-240d-280d-280e-280cd-300d-300td-0008212760-000-821-27-60|This is] what the part looks like.