Dropping Side-Door Windows
• Some cars will have a spring-loaded button to activate the window when the car door
• On other cars you will have to trick the locking mechanism. To do this, you will need a screwdriver (or a bone tool). Slide the screwdriver into the locking mechanism and adjust it to the locked position so the window remains sealed while the door is open. Sometimes you may have to press the lock twice to get it to lock. Be careful not to close the door until you have re-opened the locking mechanism, it may damage the mechanism.
• After you've installed the film, remember to let the side window sit for 20-30 minutes before releasing the locked mechanism. You want the film to dry first to prevent the film from fraying. To speed up the process, you can spot dry using your heat gun.
Although this technique works most of the time, don't be surprised on rare occasions the second film pattern doesn't fit on the opposite window. Pay close attention during your vehicle inspection to see how much room there is on the interior of the window. This will not only prevent light gaps, it will ensure the opposite side pattern will fit without any complications. Most cars have room for the film to go past the gasket by 1/4" or more. Here are the steps for double cutting:
Almost all cars have drain holds on the bottom of the door for water to escape. However, you still need to be careful not to "over wet" the side door window because it can damage the electrical sensor in the door. That could prevent the window from rolling up and down, or even worse, it could ruin the sensor permanently.
Pay special attention to some of the rear decks on the higher end vehicles such as the BMW 745i series. The computer is located in the trunk of the car on the passenger side. It has cable that runs under the rear deck and water can flow down into the computer causing major damage (up to $1,300 in some cases).
The best thing to do is pay close attention during vehicle inspection to make sure there are no surprises. Take special care to mask off exposed wires and any other electronic components. Check with car dealerships to see if they will provide you with diagrams of the vehicle. Or contact Johnson Window Films technical support to answer any questions you might have.
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