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Power Window Switch Replacement
 
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Pelican Technical Article:

Power Window Switch Replacement

Nick Czerula

Time:

2 hours2 hrs

Tab:

$100

Talent:

***

Tools:

Plastic prying tool

Applicable Models:

BMW X3 Sport Utility (2004-10)

Parts Required:

Window switches

Hot Tip:

Be careful not to damage door panel when removing

Performance Gain:

Proper power window function

Complementary Modification:

Clean under your door panel

BMW X3 power windows are controlled via electronic switches that send request signals to the general module (GEM) which in turn drive a D/C electric motor. The electric motor moves the window up or down using a window regulator. The window regulator is the mechanical track and guide for lifting the door window glass. The regulators are constructed of metal rails with a cable driven track.

Window switches fail and wear out over time, leaving you with a non-functioning window in one or both directions. If you are left to deal with any of these problems, this tech article will show you how to replace the seat switches.

When testing window motors, be sure to keep yourself and your clothing clear of the seat, as it could move. You don't want to get snagged or pinched while working on it.

Interior trim pieces and switches in BMW X3 cars are made of preformed hard plastic. Plastic clips or metal screws are sometimes used to hold them in place. To avoid marring the trim, work with a plastic prying tool or wrap a screwdriver tip with masking tape before prying out trim panels, switches or electrical accessories.

Keep in mind that when your car was serviced before, parts may have been replaced with different size fasteners used in the replacement. The sizes of the nuts and bolts we give may be different from what you have, so be prepared with different size sockets and wrenches.

Protect your eyes, hands and body from fluids, dust and debris while working on your vehicle. If working with the electrical system, disconnect the battery before beginning. Always catch fluids in appropriate containers and properly dispose of any fluid waste. Recycle parts, packaging and fluids when possible. Do not work on your vehicle if you feel the task is beyond your ability.

Vehicle models change and evolve as they grow older, so the vehicle shown in our illustrations may vary slightly from yours. If something seems different, let us know and share your info to help other users. Questions or want to add to the article? Leave a comment below. When leaving a comment, please include your vehicle information.

The main window switch, located in the left side door panel, can control all the windows and both exterior mirrors (red arrow).
Figure 1

The main window switch, located in the left side door panel, can control all the windows and both exterior mirrors (red arrow).

There are three tabs that have to be detached to remove the switch.
Figure 2

There are three tabs that have to be detached to remove the switch. Using a plastic prying tool, lever the switch up at the door panel side. 

Next, using a plastic prying tool, lever the switch up at the interior side.
Figure 3

Next, using a plastic prying tool, lever the switch up at the interior side. 

Release the third tab at the front of the switch (red arrow), then slide it out toward rear of vehicle.
Figure 4

Release the third tab at the front of the switch (red arrow), then slide it out toward rear of vehicle. Pull the window switch assembly straight up to remove. Flip the window switch over, then disconnect the mirror control connector (yellow arrow) by pulling it straight out. Reverse steps to install new switch.

The passenger switches are similar, however it only controls the passenger window.
Figure 5

The passenger switches are similar, however it only controls the passenger window. Using a plastic prying tool, lever the switch out at the retaining tabs (red arrows), similar the left side switch. Flip the window switch over, then disconnect the electrical connector by pulling it straight out. Unclip the switch at the sides (yellow arrow) and remove. Reverse steps to install new switch.

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Page last updated: Tue 6/27/2017 03:18:57 AM