My resistor for the auxillary fans in front of the condensor is bad and Mercedes parts said you have to buy a kit with 2 resistors instead of the pencil type that was originally on the car. Supposed to have 3 speed instead of 2. Does anyone know if this is correct and how will the climate control unit know there are 2 resistors there?

1995 S350 Diesel

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1995 S-350
370K + SOLD
1952 220B Cabriolet
39K kilometers + SOLD
1998 E300D
310K +
2012 E350 BlueTec
120K