Headlight condensation

[r2uzenblot]

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.

 

[B21]

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…

 

[Russ Z4]

Same here.

 

[Argyll Andy]

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

 

[r2uzenblot]

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

 

[Pondrew]

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!

 

[flybobbie]

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