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How do you defrost your windscreen?

Discussion in 'General car Chat' started by obi_waynne, 29 November 2007.

  1. obi_waynne

    obi_waynne Administrator Staff Member Moderator

    Messages:
    35,661
    Location:
    Deal, Kent UK
    Car:
    A3 2.0 TDI
    What do you use to get the frost off your windscreen? I used a plastic scraper until I found that it was scratching the glass. I have a friend who uses a credit card but I dont want to stuff up my card cos I use it a lot.
     
  2. pgarner

    pgarner TC Founder Moderator

    Messages:
    16,525
    Location:
    Lockerbie, SW Scotland
    Car:
    Octy smoke machine
    normally use a plastic scraper but here the thing i use the rubber strip

    have you got a libary card or something similer ?
     
  3. HDi fun

    HDi fun TC Professional

    Messages:
    13,148
    Location:
    Buckinghamshire UK
    Car:
    Passat 2.0 TDi 170
    Plastic lemonade bottle with tap water and a can of cheap 'n' nasty tesco de-icer spray. I hate Tesco groceries and the fresh meat is plain horrible but I'm happy to use de-icer from there.
     
  4. blacklineninja

    blacklineninja Track Warrior

    Messages:
    527
    When you get home at night after using your car for the last time, open the windows and let the car take in the cold air for 5 minutes.

    When you return to the car in the morning your windows will only have a minimal amount of frosting. It will be bl**dy cold though!
     
  5. obi_waynne

    obi_waynne Administrator Staff Member Moderator

    Messages:
    35,661
    Location:
    Deal, Kent UK
    Car:
    A3 2.0 TDI
    I use lukewarm water - it stops it refreezing and you dont get the ice on the inside that you tend to get with de-icer sprays.
     
  6. BUDZ

    BUDZ Wrench Pro

    Messages:
    20
    Location:
    london
    ive used water boiled from the kettle b4 but i have been told not to do that as the glass may crack so i wouldnt advise it as such yet coz its fast i still do it ill pay 1 day im sure
     
  7. pgarner

    pgarner TC Founder Moderator

    Messages:
    16,525
    Location:
    Lockerbie, SW Scotland
    Car:
    Octy smoke machine
    i used to use the hot water outo the tap , then again at ma mums its pretty much boiling a min after it comes outo the tap, but was told this would crack the window so have sinse stopped but i see alot of people use it
     
  8. fingers

    fingers Torque Master

    Messages:
    838
    Location:
    North Essex
    I leave my wipers at full sweep with some big bits of card underneath stopping the frost getting to the glass. Walk out in the morning, remove the card, job done. 8)
     
  9. pgarner

    pgarner TC Founder Moderator

    Messages:
    16,525
    Location:
    Lockerbie, SW Scotland
    Car:
    Octy smoke machine
    do that at work with a survial blanket but no at hame some c**t would nick it as parked on the street
     
  10. HDi fun

    HDi fun TC Professional

    Messages:
    13,148
    Location:
    Buckinghamshire UK
    Car:
    Passat 2.0 TDi 170
    lukewarm tap water is good. Not out of the kettle and hot. I've got one of those heated front windscreen efforts - it works to a point but once you've noticed the wires they are an annoyance year in year out. Every bloody day
     
  11. obi_waynne

    obi_waynne Administrator Staff Member Moderator

    Messages:
    35,661
    Location:
    Deal, Kent UK
    Car:
    A3 2.0 TDI
    I had a monitor with 2 horizontal wires - when I noticed them they really started to annoy me. (It was a 22 inch CRT with aperture grill - it was good but TFT is soo much better.)

    So I can sympathize with you HDi - try wearing dark glasses it might help.
     
  12. HDi fun

    HDi fun TC Professional

    Messages:
    13,148
    Location:
    Buckinghamshire UK
    Car:
    Passat 2.0 TDi 170
    I reckon the monitor was a Sony Trinitron model. Yes, I agree, those wires are bloody irritating once you've seen 'em.

    Fine in a telly (Sony's been making 'em since the mid 1970's) as you sit further away from it.

    Those wired windscreen things were originally introduced by Ford as far back as the late 1980's.

    They do work very very well indeed but the array of vertical wires is irritating. It's so easy to focus on them mesmerically and then ignore the road completely.

    Makes you wonder how safe they really are.

    Hopefully someone will create some kind of glass surfacing technology where the whole screen is conductive, thereby removing the fine vertical lines from the screen.
     
  13. MR.Lee

    MR.Lee Grease Monkey

    Messages:
    4
    Location:
    North West
    I just run the car for about 10 minutes while I stand in the front room with a nice warm brew 8)

    Obviously this requires a spare set of keys to lock the car up while its running.
     
  14. pgarner

    pgarner TC Founder Moderator

    Messages:
    16,525
    Location:
    Lockerbie, SW Scotland
    Car:
    Octy smoke machine
    well it was minus 4.5 when i went to work this morning very hard frozen and id slept in a bit
    so went back to using the warm water in a bottle 15 secs to to the whole car

    the wife who left with me took 5 mins to clear her front window
     
  15. HDi fun

    HDi fun TC Professional

    Messages:
    13,148
    Location:
    Buckinghamshire UK
    Car:
    Passat 2.0 TDi 170
    Warm water in a squeezy bottle is looking popular. Another thing to do is turn on all your lamps (mains, fogs, the lot). It adds to the electrical load which makes the engine working every so slightly harder. It also defrosts all the lights.

    I also turn on rear window demister because it's linked to the door mirror heaters (most are) so they get cleared. Also adds more electric load.
     
  16. pgarner

    pgarner TC Founder Moderator

    Messages:
    16,525
    Location:
    Lockerbie, SW Scotland
    Car:
    Octy smoke machine
    i wonder if thats how mines work it says that they are heated but couldnt get them to work
    theres nothing in the handbook about them and the civic had them but them were on al the time i think.
     
  17. obi_waynne

    obi_waynne Administrator Staff Member Moderator

    Messages:
    35,661
    Location:
    Deal, Kent UK
    Car:
    A3 2.0 TDI
    On My A3 if you lift the door handle before unlocking it the heated mirrors kick in. They also kick in if the temperature is below 5 degrees - probably the same on your car as well.
     
  18. pgarner

    pgarner TC Founder Moderator

    Messages:
    16,525
    Location:
    Lockerbie, SW Scotland
    Car:
    Octy smoke machine
    ill give it a try next time its frosty

    the mirrrors are the things i always forget about when defrosting
     
  19. Pixel

    Pixel Road Burner

    Messages:
    464
    Location:
    Swansea, Wales
    Car:
    Ford Fiesta Zetec-S
    This shouldn't even be a discussion ;)

    Boil the kettle for 30 seconds until the water is lukewarm and pour it over the glass, the ice melts in seconds leaving the windows clear as day. I usually stick the heaters on when the car has warmed up to sort out the inside. And lukewarm water will not crack the glass, boiling water probably wont either but it has happened before so don't take the risk.
     
  20. wyze

    wyze Tuner

    Messages:
    89
    Location:
    Kent UK
    Car:
    Polo 1.1
    30 seconds is all my kettle takes to boil the water so that would be too hot. Cold water from the tap does the job fine to me. Its over 0 degrees so will melt the ice. If you use enough it doesnt refreeze either.
     
  21. gendox

    gendox Track Warrior

    Messages:
    607
    Location:
    Corby, Nortants
    Car:
    Pug 206 LX
    the rumor is in older cars the window will crack with boiling water newer cars i dont think so but my rover windscreen cracked when i pored boiling water over it last year that was a 1997 haha gutted
     
  22. obi_waynne

    obi_waynne Administrator Staff Member Moderator

    Messages:
    35,661
    Location:
    Deal, Kent UK
    Car:
    A3 2.0 TDI
    I think the laws of physics say any thick peiece of glass, laminated or not will crack if you pour boiling water on it.
     
  23. gendox

    gendox Track Warrior

    Messages:
    607
    Location:
    Corby, Nortants
    Car:
    Pug 206 LX
    mine did haha it was chipped in the first place though ???
     
  24. Wcnwzrd

    Wcnwzrd Track Warrior

    Messages:
    538
    Location:
    Casa Grande, Arizona
    Car:
    95 300zx TT (RIP)
    i have to let the truck warm up in the mornings anyways so just turn on the heater to full and let it defrost while i finish getting ready, normally about 10 to 15 min. side mirrors get frosted every so often but hardly use them unless im backing so don't bother me.
     
  25. turbonutter69

    turbonutter69 TC Pro Founder Moderator

    Messages:
    18,524
    Location:
    Alone in the dark.
    Car:
    Insignia SRI.
    Cold water does the job for me if my screen is really icy.:)
     
  26. HDi fun

    HDi fun TC Professional

    Messages:
    13,148
    Location:
    Buckinghamshire UK
    Car:
    Passat 2.0 TDi 170
    Water at near to 100 degrees celcius will cause a problem. If the glass (laminated, toughened or whatever) is at close to zero then it will quite possibly cause it to fracture. This is because the glass surface suddenly heated by the water expands very slightly, but very fast. Glass is a very poor heat conductor (why are glass saucepans available?).

    As such, the heated outer surface expands quickly - the inner surface remains at nearly the same low temperature hence the breakage.
     
  27. Loz

    Loz Torque King

    Messages:
    7,667
    Location:
    Wolverhampton, U.K.
    Car:
    MX-5
    Ditto :amuse:

    **Edit extra bit**
    When you jump in the car wind down the window to stop the windscreen from misting up.
     
    Last edited: 13 December 2008
  28. obi_waynne

    obi_waynne Administrator Staff Member Moderator

    Messages:
    35,661
    Location:
    Deal, Kent UK
    Car:
    A3 2.0 TDI
    Time to revisit this thread, there be frost in them thar hills! :(
     
  29. pgarner

    pgarner TC Founder Moderator

    Messages:
    16,525
    Location:
    Lockerbie, SW Scotland
    Car:
    Octy smoke machine
    had frost already

    i boil the kettle and throw it on the windscreen. its the best way to clear it ;)

    really need to get some silicone lub to do the door rubbers with this year to stop them freezing onto the door
     
  30. badger1980

    badger1980 Tuner

    Messages:
    64
    Location:
    uk stoke on trent
    Car:
    Mitsubishi Galant
    Normaly i start her up and leave her running while i finish my coffee but the mrs often volunteers to do it :lol: . My windscreen went last summer quite a warm day just got the hose out to give her a bath started on the roof as normal just washing her off and soon as i sprayed the front windscreen thats when i heard it go right across from corner to corner.I try to use the 100% silicone spray on the rubbers works great and stops the doors from sticking.
     

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