Genuine Mercedes-Benz C280 Cooling Fan Assembly

Mercedes-Benz C280 Cooling Fan Assembly Parts and Q&A

• Fan & Motor
  203-500-16-93
  Q: How to check and replace the Cooling Fan Assembly and its components on Mercedes-Benz C280?

  A:

  Disconnect the cable from the negative terminal of the battery and rock the fan back and forth by hand to check for excessive bearing play. With the engine cold and not running, turn the fan blades by hand; the fan should turn freely. To replace the fan, disconnect the cable from the negative terminal of the battery, remove the air cleaner housing and air inlet duct(s), and on 4WD models, disconnect the power steering line bracket from the top rear of the radiator crossmember. Follow the fan wiring harness to the connector and unplug it, then remove the horn and detach the power steering oil cooler from the front of the radiator crossmember. Free the coolant line from the clip at the top rear of the radiator crossmember, and if the hood latch cable will block removal of the crossmember, disconnect it at the connector on the left side of the engine compartment. Detach the air guide clips and wiring harness ties from the crossmember at the upper front of the engine compartment, unbolt the bracket that secures the crossmember to the grille, and remove the retaining pin and mounting bolts from each end of the crossmember. Squeeze the radiator retaining clips to disengage them, then lift the crossmember off the vehicle, removing the clips that secure the air guide beneath it. Follow the fan wiring harness to the connector and unplug it, then free the clips that secure the fan shroud to the radiator and lift the shroud off, together with the fan motor, tilting the radiator forward for clearance as you lift the fan out. Carefully inspect the fan blades for any damage and replace if necessary, also checking the fan motor and electronic controller for signs of damage or roughness when rotating the assembly. At this point, the fan may be unbolted from the motor if necessary, and the motor and controller unbolted from the fan shroud. Installation is the reverse of removal, ensuring to tighten the fan and motor mounting bolts evenly and securely.