Originally Posted by
americanretrodave
Ok, I took out the blower resister motor, tested it and it's bad, apparently when they go bad, it can either cut off the fan completely or it can leave it on. Now I'm looking for the best price on a replacement?
Dave
Several of us including me have recently bought this one
http://www.ebay.com/itm/RU567-Mercedes-SLK320-SLK350-AMG-A-C-Fan-Blower-Motor-Resistor-NEW-2108206210-/151141015915?pt=Motors_Car_Truck_Parts_Accessories&hash=item2330b4e16b&vxp=mtr
Look at the recent posts in the thread I linked here: Blower motor resistor
There are photos and a very informative video on how to replace this
I did mine in about 45 minutes