If the passenger side power window fuse on a BMW 850 is blowing, it typically indicates a short circuit or an overload in the window's electrical system. Common causes include damaged wiring, a faulty window motor, or issues with the switch. To troubleshoot, inspect the wiring for frays or insulation damage, test the window motor for proper function, and check the switch for faults. Replacing the fuse alone won't resolve the issue; addressing the underlying cause is essential to prevent repeated fuse blowouts.
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