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83

Plexiglass is flammable. While it doesn't release toxic gases or excessive amounts of smoke, it is still rated B2 (normally flammable) and thus forbidden as interior material in motor vehicles, including windows. Here is a relevant US standard if you're interested in details. Collision behaviour mentioned by Thomas is also a crucial property, especially ...


36

Because of how it reacts in a collision. Auto glass is designed to shatter into small bits that are fairly dull, as opposed to large, sharp daggers. In the US, your car must be outfitted with glazing material that meets certain specs, and material type is not specified. If anyone could get plexiglass to satisfy those specs, I am sure it would be lower cost ...


13

In addition to to the other factors mentioned. Plexiglass is not opaque to UV radition like silica glass. Passengers would get sunburned driving around exposed to sunlight. Used to be, when not all cars in hot climes had air conditioners, you could tell those drivers who did not because they'd roll down the driver's side window and sometimes put their ...


8

Plastics are awesome. One of their characteristics is that they easily degrade in UV / sunlight. In my experience that is the weakest link in its usage. With that said, there are a whole lot of plastics used on modern cars. Generally headlamp lenses are made of polycarbonate. The polycarbonate material has a thin coating sprayed on top of the lens to ...


7

Typically the fog is from excessive humidity in the vehicle. The three most common sources I can think of are: A leak that allows rain water to collect in the car. Check to see if the rugs are damp, look in the storage well behind the seat and any place water might collect. Do you also notice a sweet smell when the engine gets warm? If you do it may be a ...


7

Clean with soap and water, rinse clear, then dry with a microfiber cloth. The key is the microfiber cloth.


6

While I think the other two answers are good, I think there is a better explanation of what is happening with the windshield when a rock hits it. When a rock hits a windshield and puts a "bullseye" into the surface, it creates areas within it called stress risers. Stress risers cause places in any structure where the stress is localized to a small area. ...


6

The windshield repair guy is correct: there is no way to repair cracks in the windshield. I don't know what the laws are in Alberta, but here in Virginia, if the cracks are on the driver's side of the windshield, it needs to be replaced. Considering that you were replacing the wiper motor and it is on the DS of the vehicle, I will assume this is your case. I ...


6

Windshield repairs are usually limited to small chips and small cracks. Several cracks that long will most likely require that the windshield be replaced. The repair is done by injecting a resin into the flaw then polishing the surface. Most shops limit the length to about three inches. There are specialized shops that say the limit is six to eight inches, ...


6

Here's a parts explosion The hose #9 you could drain through. I like the coolant idea. pour coolant in the reservoir, it might take a bit but it will turn the slush into liquid. There a glycerin in it and it's alcohol based so it's miscible with any alcohol in your wiper fluid. Nothing bad will happen. Others chime in if this is ridiculous to you ...


6

There won't be a fault with the windscreen. If it was drawing excessive current, then the fuse for this circuit would blow. There could possibly be a fault with you alternator, in that it is not able to provide the current being drawn by the windscreen, this will then cause the battery to discharge. Another possibility is that the idle speed control valve ...


6

tl dr: There are no major safety issues with using wax on your windows. I have done it before without issue. It will do a couple of things for you. First, it will fill in minor imperfections in the glass. When I say minor, I mean the really minor stuff. This will help it look more optically clear. The second thing it will do is cause a whetting effect with ...


5

You don't have the air inlet selection lever set to recirculate, do you?


5

The pump is usually mounted to the bottom of the tank. Common causes of failure: Disconnected or clogged hose with the engine off can you hear the motor running under the hood? If so could be a clogged or disconnected hose. Wax or other debris in the jets, if the jets are located on the hood they can get clogged with wax or dirt, if you hear the pump ...


5

I cannot tell you with 100% surety this was caused by an impact, but I'd suggest it probably was. Glass is a strange beast. It does have some flexibility to it, but if you get a stress riser in it, a crack can form. A rock impact creates a HUGE stress riser in the glass and the crack runs from there. If you'd like to know more about stress risers, you can ...


5

probably nothing to worry about but.... The integrity of the windshield is compromised. The chip in the nice smooth surface creates a point of failure. The chip is the weakest link in the chain, so to speak. Under these circumstances you could lean against the windshield and the force could start 'that crack' which spreads across it in short order. A ...


5

I think in answering this question you need to answer the initial question which is fundamentally, is plexiglass used for glazing in road cars. The answer to this question is that it is a very definite yes, it is used. One example of a production vehicle that uses plastic windows is the Porsche 911 GT3 (991 GT3 R). Taken from wiki information about the ...


4

That depends very much on the sticker material. For vinyl stickers I've had good experience warming them up with a hairdryer to soften the glue and then slowly peeling them off. I've also managed to get them off a windshield using a scraper (essentially a razor blade with a handle similar to this). You have to be a bit careful with the latter but I managed ...


4

Thoroughly clean the glass, both inside and out. There are many different glass-cleaning products out there - have a look in the cleaning aisle of your local store. Try and find something that doesn't leave a residue. Once you have cleaned it, immediately replace your wiper blades. These should be replaced every 6 months or so as a matter of course. If you'...


4

Go to Napa, Autozone, Pepboys or similar - they all stock the specific glue that you need to reattach the mirror. As with most jobs that involve sticking dissimilar materials together, cleanliness is the key - make sure that you get all the old glue off both the windshield (fairly easy) and the metal button (not that easy). Follow the instructions on the ...


4

First, I have already replaced my Forester's windshield twice, and should go soon for the 3rd time. What surprises me is that your insurance co. charges deductible. Mine was free both times. From what I heard, when the crack is small enough, then it is possible to carefully drill a circular hole in the glass and then fill it with some kind of bond or resin. ...


4

It will depend on your car, the outdoors humidity, the air temperature and the engine temperature. As an example, for me on a cold icy morning starting with a cold engine: aircon on fan on low use external air, not recirculator! front windscreen demister (covers wiper rest area) rev engine until at working temp then put fan on high But in high humidity ...


4

The Subaru Legacy owner's manual indicates that button is your windshield wiper deicer. Pictured below is part of page 3-38 of the manual. The manual explains how to use the deicer in this picture.


4

Your theory sounds good to me. Do run the windshield washers before parking the car. Now, about fixing the current scratches: There are products that allow you to polish the windshield to remove scratches. In the same way that you would polish the paint. I do it to my car every month, except that I use the regular paint polish rather than the more expensive ...


3

Imagine your windshield is a balloon. The small stone is a needle. When it punctures the windshield, it creates a small tear. Everytime your car goes over a bump, the entire frame twists very slightly. If your windshield was intact, the jolt would be spread across the entire surface but because there's a little tear/chip in the windshield, the force is ...


3

My guess would be that the grayish colored piece slides onto the black baseplate. It appears to be held in place by the three dimples fitting into a detent. I would insert a small screwdriver between the two humps shown in the first photo. With a twisting motion see if the gray plate slides toward the dash. You may have to try several size screwdrivers to ...


3

It could be humidity(in this case dew if it's in the morning) that just froze over your windshield. On my old car it will be more apparent in the wipers marks on the windshield as it would trap more humidity. Happen to me often when getting colder temperature. When the car got hotter or outside temperature go up, it will just evaporate.


3

Hot air from the exterior with your a/c on is the quickest. Though in general having the a/c on is the most important piece, as it removes moisture from the air.


3

If you have an a/c, you can leave it on even if you have the heat on and it will clear the fog. Wipe down the inside of your windows with windex, that will also help.


3

I found these instructions on eHow: Use the blow dryer or heat gun to warm the mirror mount right where it attaches to the windshield. You are applying this heat to soften the adhesive underneath. Test the mirror every so often while you are heating it by trying to gently move the mirror slightly back and forth. Once you feel movement, continue to ...



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