2000 BMW M5FACTORY OEM SERVICE PROCEDURE

Power Window Motor

Remove power window motor. See POWER WINDOW MOTORΒ  under REMOVAL & INSTALLATION. Secure power window motor gently in vise. Using fused jumper wires, briefly apply battery voltage to terminal No. 1 and ground terminal No. 2 at power window motor 2-pin connector. Power window motor should operate. When polarity is reversed, power window motor should operate in opposite direction. If power window motor does not operate as described or is noisy, replace power window motor.

Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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