1983 Mercedes Benz 240D Base 4 Cyl 2.4L
Body & Interior
HOW TO REPLACE BLOWER MOTOR RESISTOR. LOCATION
Not exactly sure on your vehicle but the best advice i can offer is, you can folow the wires from the blower motor where they connect to should be the resistor. It usually very close to the blower motor and usually mounted to the HVAC box.