how to fix the wiper motor issue in my BMW 3 Series F30/F31 (2012-2019)?

Solution

1. Preparation

• Tools Needed:
  • Socket set
  • Multimeter
  • Screwdrivers (flat and Phillips)
  • Pliers
  • Torque wrench
• Safety Warnings:
  • Disconnect the battery before working on electrical systems.
  • Allow the wipers to park in the off position if possible.

2. Remove the Wiper Arms

• Sub-steps:
  1. Lift the wiper arms away from the windshield.
  2. Use a socket wrench to remove the nut securing each wiper arm to the motor shaft.
  3. Gently wiggle and pull the wiper arms off the shafts.

3. Access the Wiper Motor

• Sub-steps:
  1. Remove the plastic cowl covering the wiper motor by unscrewing any retaining screws.
  2. Disconnect any electrical connectors from the wiper motor.
  3. Remove the bolts securing the wiper motor to the vehicle.

4. Inspect and Replace the Wiper Motor

• Sub-steps:
  1. Test the old wiper motor for functionality by applying power directly. If it does not work, replace it.
  2. Install the new wiper motor by securing it with the bolts and reconnecting the electrical connectors.
  3. Ensure all connections are tight and free of corrosion.

5. Reassemble the Wiper System

• Sub-steps:
  1. Reinstall the plastic cowl over the wiper motor, securing it with screws.
  2. Place the wiper arms back on the motor shafts at the correct angle for operation.
  3. Tighten the securing nuts on the wiper arms.

6. Test the Wipers

• Sub-steps:
  1. Reconnect the battery.
  2. Turn on the wiper switch to verify proper operation of the wipers and ensure they return to the parked position.