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On average, the cost for a BMW 645Ci Window Motor Replacement is $387 with $244 for parts and $142 for labor. Prices may vary depending on your location.
| Car | Service | Estimate | Shop/Dealer Price |
|---|---|---|---|
| 2004 BMW 645CiV8-4.4L | Service typeWindow Motor - Driver Side Rear Replacement | Estimate$726.27 | Shop/Dealer Price$890.96 - $1325.99 |
| 2004 BMW 645CiV8-4.4L | Service typeWindow Motor - Passenger Side Front Replacement | Estimate$678.74 | Shop/Dealer Price$836.00 - $1228.87 |
| 2005 BMW 645CiV8-4.4L | Service typeWindow Motor - Driver Side Front Replacement | Estimate$678.74 | Shop/Dealer Price$835.99 - $1228.86 |
| 2004 BMW 645CiV8-4.4L | Service typeWindow Motor - Driver Side Front Replacement | Estimate$678.74 | Shop/Dealer Price$835.91 - $1228.72 |
| 2005 BMW 645CiV8-4.4L | Service typeWindow Motor - Passenger Side Front Replacement | Estimate$678.74 | Shop/Dealer Price$836.05 - $1228.96 |
| 2004 BMW 645CiV8-4.4L | Service typeWindow Motor - Passenger Side Rear Replacement | Estimate$698.67 | Shop/Dealer Price$864.01 - $1300.86 |
| 2005 BMW 645CiV8-4.4L | Service typeWindow Motor - Driver Side Rear Replacement | Estimate$703.77 | Shop/Dealer Price$868.15 - $1302.94 |
| 2005 BMW 645CiV8-4.4L | Service typeWindow Motor - Passenger Side Rear Replacement | Estimate$706.17 | Shop/Dealer Price$872.13 - $1309.45 |
The window motor is located inside the door panel behind the trim, and is responsible for raising and lowering the window when the switch is pressed. It is a reversible electric motor, powered up by an electric switch on the inside of the door. When the button to open or close the window is pressed, a circuit completes and the electric window motor cycles. The window glass is attached to a track and is on a window regulator that allow it to move squarely and smoothly up and down. If the window motor is faulty, you may experience a slow-moving window especially upward, the window may not move at all when the button is pressed, or the window may begin to sink back into the door after the power window switch is released.
Because the window motor is a sealed system, it does not receive any scheduled maintenance. When it fails, replacement is the only option. However, there are other potential causes of malfunctions, including the window switch and wiring problems. If you’ve noticed that your window motor is not working properly, or it is working inconsistently, have the problem diagnosed by one of our expert mechanics.
The power window motor closes your door windows to provide security for belongings inside, and provides protection from environmental elements. A window must be able to open in the event of an emergency, so have a faulty window motor replaced immediately.
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