That is highly unusual. I remember an old benz I had where the fuse would burn out and the left rear and the right front would not work. If you have already checked your fuses start at the swtich to ensure you are getting power to the switch and from when you click it, if you are ok there then go to the motor, if you are getting power to the motor, then it is your motor. Good luck!
Brian

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Brian W. Heitman

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