BMW 850CSi Window Motor Replacement Cost.

The average cost for a Door Window Motor Replacement is between $440 and $513. Labor costs are estimated between $158 and $200 while parts are priced between $282 and $313. Estimate does not include taxes and fees.
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Common Symptoms

Due to a failing door window motor, the window may not open or close. It could also work intermittently.

Problems with power windows are commonly caused by faults in the switches or wiring. The switches and wiring should be checked thoroughly before replacing a window motor.

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