Genuine BMW 2500 Wiper Motor

BMW 2500 Wiper Motor Parts Questions & Experts Answers

• Windshield Wiper Motor
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  Q: How do you remove and refit the wiper motor and linkage while ensuring proper positioning on BMW 2500?

  A:

  Remove the heater unit cover plate, noting the position of the special sealing strip A between the cover plate and water drain gutter. Ensure the wiper linkage is in the parked position; if the motor has failed with the wipers in any other position, move to the parked position by turning the motor crank. Detach the crank by removing the nut and release the wiper motor from its mountings by removing three screws. Pull off the multiple plug and remove the wiper by tilting downwards. If the motor is inoperative, check the current supply by reconnecting the multiple plug to the motor, switching on the ignition and wiper switches, and using a test lamp or voltmeter at terminal 53 (black/yellow and green cables) or 53b (black/white and red cables) to check for current. If the cables are live, the wiper motor is internally defective. Refit the wiper motor in reverse order of removal, ensuring the motor is in the parked position by temporarily connecting the multiple plug, switching on the ignition and wiper switches, allowing the motor to run for a few seconds, and then switching off at the wiper switch, which will stop the motor automatically in the parked position. For wiper linkage removal, first remove the heater unit cover plate. Remove the wiper arms by pulling the bosses from the splined shafts; if difficult, carefully lever the arms from the shafts using a large screwdriver. Remove the nuts and washers securing the wiper arm shafts, push the shafts through the mounting holes, and detach the linkage assembly complete. Pull the multiple plug from the plug board and remove it with the rubber grommet. If necessary, press off the connecting link and drive rod and unscrew the wiper pivot bearings. Refitting is a reversal of the removal procedure, ensuring the motor and linkage are in the parked position. Push the wiper arms onto the shafts so that the blades are approximately 1 to 2cm (0.4 to 0.8in) from the edge of the screen in the parked position.