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Headlight condensation

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r2uzenblot
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Headlight condensation

Post by r2uzenblot » Wed Nov 30, 2022 7:29 pm

Just cleaned my car ready for the forecasted crap weather and noticed that both my headlights had some condensation in. Anyone else had this? I've never seen it before.
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B21
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Headlight condensation

Post by B21 » Wed Nov 30, 2022 8:40 pm

Most of these complex headlight structures have atmospheric venting..so if damp air enters an the temperature drops condensation appears….certainly the Z4 E89 owners manual explicitly warns you of such events and to relax… :thumbsup:
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Russ Z4
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Headlight condensation

Post by Russ Z4 » Thu Dec 01, 2022 3:04 pm

Same here.

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Argyll Andy
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Headlight condensation

Post by Argyll Andy » Thu Dec 01, 2022 11:42 pm

I get this regularly, often when washing the car. Goes away very quickly :thumbsup:

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    r2uzenblot
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    Headlight condensation

    Post by r2uzenblot » Fri Dec 02, 2022 3:27 pm

    You are correct. Went away after I had finished polishing. A strange phenomena..........
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    Pondrew
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    Headlight condensation

    Post by Pondrew » Mon Dec 05, 2022 7:42 pm

    r2uzenblot wrote: Fri Dec 02, 2022 3:27 pm A strange phenomena..........
    It's not really strange, just the relationship of dew points of air and temperature TBH.
    If you wash your car with water at ambient temperature it won't happen, but then your hands will get really cold! :D
    All good things come to those who wait. I'm really impatient which explains a lot.

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    Headlight condensation

    Post by flybobbie » Thu Dec 08, 2022 6:48 am

    Remember the days of sealed beam headlights.
    Progress, eh.

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