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E46 (1999 - 2006)
The fourth generation 3 Series (E46 chassis) was introduced in 1999 and set the standard for engineering and performance during it's years of production including being named to Car & Driver's 10 best list every one of those years! ! -- View the E46 Wiki

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  #1  
Old 10-16-2016, 02:05 PM
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Fast Bob Fast Bob is offline
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Coupe windows freezing shut in winter ?

Coupe owners in cold climates probably know what I`m talking about. Our windows normally drop down about 3/8 ths of an inch or so upon opening the door, and automatically raise up the same amount when closing the door. This is so the glass is secured up under the edge of the rubber seal, creating a wind-and-waterproof seal.

During cold, icy weather, what sometimes happens is that the glass gets frozen in the door, preventing the window from dropping down, making it difficult to impossible to get the door open. And, in the event that you DO manage to get the door open, it`s impossible to shut the door with the window all the way up, there`s a substantial danger of shattering the glass by slamming the door.

After putting up with this crap for a long time, I finally figured out a simple work-around to the problem....pool noodles....those long, polyurethane foam thingies that kids play with in the swimming pool. Using a sharp knife, slit one down the side. Put your window halfway down, install the slit noodle over the top of the glass, and trim to size, so it will cover the entire top of the glass. Using your key in the lock, use the "windows close" function to raise the glass until it just exerts a little pressure on the noodle.

This will give you the needed weatherproof seal, as well as leaving about a half-inch open gap at the top of the window, allowing the door to open and close freely, even if frozen.
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  #2  
Old 10-16-2016, 02:31 PM
adwebinc adwebinc is offline
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You can also put some silicone grease in the window channels. Lubricates and makes it easier on the motor / regulators, but also prevents freezing.


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  #3  
Old 10-16-2016, 02:33 PM
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Mein Auto: '04 ///M3 Individual
I just make sure I have greased the seals with rubber care and or olive oil or grape seed oil. Then buff it off after it soaks in. This repels water. Before I get out I make sure I hit the down button quickly. When I close the door the window should be sealed and doesn't go up that little bit. I've never had a problem with that.

There are many ways as Bob has mentioned. This is just my way.
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Old 10-16-2016, 03:06 PM
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Spray silicone on all the rubber seals will stop that too and it keeps the seals healthy over the years.. Only drawback it smells for a day or two but it's worth it

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Old 10-16-2016, 05:53 PM
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I normally treat all the rubber seals on the entire car with Armor-All 3 or 4 times a year. Keeps everything nice & pliable, but hasn`t proven to be terribly effective against freezing. Never tried the silicone grease....I have a tube of Dielectric silicone grease, but it seems a bit too sticky and messy for use on window seals though....
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  #6  
Old 10-16-2016, 06:28 PM
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Quote:
Originally Posted by Fast Bob View Post
I normally treat all the rubber seals on the entire car with Armor-All 3 or 4 times a year. Keeps everything nice & pliable, but hasn`t proven to be terribly effective against freezing. Never tried the silicone grease....I have a tube of Dielectric silicone grease, but it seems a bit too sticky and messy for use on window seals though....
Use the spray...it's a dry lube after it drys and ice can't stick to silicone

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  #7  
Old 10-22-2016, 01:45 PM
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My old E36 had the same issues. I would always get a hot glass of tap water to pour on the roof and cascade down the window. A bit more dangerous but it always worked for me.
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Old 11-03-2016, 12:11 PM
r20wla r20wla is offline
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ive always put a slight smear of light grease or vasaline
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  #9  
Old 02-22-2017, 09:57 AM
Trevon Trevon is offline
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Greased seals have always done the trick for me, but I'm in Cali so it doesn't get that cold.
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