I have a 2000 s500 i am replacing the air conditioning fan blower the old one has 3 wires and the new one has 4 wires what do i do now????
Make sure you have the right one. And or check if there are any directions on what to do with extra wire..Most likely you got the wrong part
Some aftermarket blower motors are reversible. To accomplish this there's two power (+) wires. One wire is not used. The directions should tell you which wire you need for clockwise or counterclockwise rotation of the motor. HTH. -Jim
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