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I have a 2007 Mazda 3 sedan which I bought about a year ago. Everything on the car was great, until the weather started to get hotter when the windows would sometimes take a moment to "unstick" if you tried to lower them.

Now, the car has after-market tinting on the windows (it was fitted prior to my purchasing the vehicle), and on a particularly hot day about three months ago, both of the rear windows just wouldn't go down any more. I didn't have time to bother with it, but when idly pressing the button one cooler day, one of the rear windows gave a bit of a "pop!" and let go. It's been working just fine ever since.

You can hear the electric motor trying to work when you press the button, and at night you can see that it's drawing power because the headlights dim slightly if you happen to be waiting at traffic lights. I never hold the button down for more than a few seconds for fear of burning out the electric motor. I've had a pretty concerted effort at trying to pull down on the window with my palms while pressing the button but to no avail.

I'm certain that the issue is that the heat has just caused the tinting to stick to the window seal. Can anyone think of how I could get the window seal to "unstick" from the tinting?

Jane S
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2 Answers2

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Pull down on the window with open hands or a big suction cup while someone operates the window switch, once it unsticks roll the window down all the way, then liberally spray the window channel rubbers with a high quality Silicone Spray. Let the spray dry then roll the window up and down several times.

Depending how dry the channel rubbers are how many times you will have to repeat this process to keep the windows from sticking. Also this should become part of your annual car maintenance.

If there is tint glue oozing out from the edges of the tint, you will need to remove and replace the tint before you roll the window up tight again.

Moab
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More than likely the problem is the window motors are going bad. Most have a thermal switch in them (sort of like a resettable fuse) which will stop the motor from working when a heat threshold has been reached. There are several factors which cause this, including the grease thickening in the gears as it gets older. I've seen this in many different vehicles. During the cooler times, the thermal switch is not tripped so the window will still roll up and down. I realize replacement of the window motors is not a cheap thing, but would bet this will solve the issue.

Pᴀᴜʟsᴛᴇʀ2
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