Is your car window acting sluggish or refusing to budge altogether? Don’t fret! A malfunctioning window motor might be the culprit, but fixing it isn’t as daunting as it seems. This guide will walk you through the window motor replacement process and answer common questions you might have.
Step-by-Step Guide to Window Motor Replacement
While tackling window motor replacement yourself is possible, it’s recommended to seek help from a skilled mechanic, especially if you’re unfamiliar with car repairs. Here’s a glimpse into what a mechanic will do:
Preparation (Safety First!)
- Park your car in a well-lit and safe area.
- Turn off the ignition and disconnect the car battery to prevent electrical mishaps.
Door Panel Removal
- The mechanic will use a trim panel removal tool to detach the interior door panel (door card) and its mounting bolts.
- Carefully, they’ll unclip and raise the panel, working their way up while paying attention to any wires connected to the panel, like those for power windows or door locks.
Disconnecting Electrical Connections and Water Shield Removal
- Once the panel is loose, the mechanic will disconnect electrical connectors, including the power window switch.
- They’ll then peel back the water shield (a plastic sheet behind the panel) to access the window motor, making sure not to damage it as it needs to be reinstalled later.
Locating and Removing the Old Motor
- The window motor, typically bolted to the door frame and connected to the window regulator, will be located.
- After disconnecting the motor’s electrical connector, the mechanic will remove the mounting bolts or screws securing it. The old motor can then be carefully taken out.
New Window Motor Installation
- The new motor is put in place and secured with the mounting bolts or screws. Electrical connectors are then reconnected.
Door Reassembly
- The water shield is reinstalled, ensuring a proper seal to prevent moisture from reaching the new motor. The power window switch and door lock mechanism are reconnected as well.
- The interior door panel is aligned and put back into place, with clips and bolts securely fastened. Other removed parts like the door handle and trim panel pieces are also reattached.
Final Testing
- The mechanic will reconnect the car battery and perform final checks, testing the new window motor operation several times. This ensures smooth operation and proper up-and-down movement of the window.
Window Motor Replacement Cost
The cost of window motor replacement generally falls between $400 and $600, which includes both parts and labour. However, the exact price can vary depending on your car’s make, model, and the job’s complexity. Replacing the window regulator, if needed due to failure, can cost anywhere from $400 to $1600.
Frequently Asked Questions about Window Motors
1. How Does a Window Motor Work?
A window motor, present in electric cars with power windows, converts electrical energy into mechanical energy. When you press the window button, an electrical signal is sent to the motor, which uses the car’s battery power to operate the window regulator and regulator arms, ultimately moving the window up or down.
2. Signs of a Failing Window Motor
- Noisy or squeaky window operation
- Slow or complete window movement failure
- Intermittent window operation
- A burning smell emanating from the window area
- Rattling sounds from the door panel
- Window movement restricted to one direction
3. Common Causes of Window Motor Failure
- Regular wear and tear of the motor and regulator assembly, causing brushes and gears to wear out over time.
- Electrical problems like a faulty switch, damaged wiring, or a blown fuse.
- Overuse or excessive strain on the motor parts.
- Water damage or exposure to moisture.
- Physical damage to motor components or the door mechanism.
- Misaligned or worn-out regulator arms.
4. How Often Should You Replace a Window Motor?
There’s no set lifespan for a window motor and regulator assembly. They typically last for several years before needing replacement. The most obvious indication for a replacement is when you encounter signs of window malfunction.
By understanding the window motor replacement process and the common causes of window motor failure, you’ll be well-equipped to handle window woes and keep your car’s windows rolling up and down smoothly.